517 results match your criteria BMC Medical Imaging[Journal]


Computed tomography volumetry of esophageal cancer - the role of semiautomatic assessment.

BMC Med Imaging 2019 Feb 15;19(1):17. Epub 2019 Feb 15.

Department of Diagnostic Radiology and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden.

Background: The clinical and research value of Computed Tomography (CT) volumetry of esophageal cancer tumor size remains controversial. Development in CT technique and image analysis has made CT volumetry less cumbersome and it has gained renewed attention. The aim of this study was to assess esophageal tumor volume by semi-automatic measurements as compared to manual. Read More

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http://dx.doi.org/10.1186/s12880-019-0317-5DOI Listing
February 2019

Clinical and imaging manifestations of primary cardiac angiosarcoma.

BMC Med Imaging 2019 Feb 14;19(1):16. Epub 2019 Feb 14.

Magnetic Resonance Room, Sheng Li Oilfield Central Hospital, Shan Dong, 257034, China.

Background: To investigate the CT manifestations of primary cardiac angiosarcoma.

Methods: The clinical and CT data for 9 patients with cardiac angiosarcoma were retrospectively analyzed.

Results: The lesions in all nine cases were located in the right atrium. Read More

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http://dx.doi.org/10.1186/s12880-019-0318-4DOI Listing
February 2019

CoreSlicer: a web toolkit for analytic morphomics.

BMC Med Imaging 2019 Feb 11;19(1):15. Epub 2019 Feb 11.

Department of Medicine, McGill University, 3755 Cote Ste Catherine Rd, E-222, Montreal, QC, H3T 1E2, Canada.

Background: Analytic morphomics, or more simply, "morphomics," refers to the measurement of specific biomarkers of body composition from medical imaging, most commonly computed tomography (CT) images. An emerging body of literature supports the use of morphomic markers measured on single-slice CT images for risk prediction in a range of clinical populations. However, uptake by healthcare providers been limited due to the lack of clinician-friendly software to facilitate measurements. Read More

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http://dx.doi.org/10.1186/s12880-019-0316-6DOI Listing
February 2019

Measuring liver fat fraction with complex-based chemical shift MRI: the effect of simplified sampling protocols on accuracy.

BMC Med Imaging 2019 Feb 8;19(1):14. Epub 2019 Feb 8.

Norfolk and Norwich University Hospital NHS Foundation Trust, Colney Ln, Norwich, NR4 7UY, UK.

Background: The assessment of liver percentage fat fraction (%FF) using proton density fat fraction sequences is becoming increasingly accessible. Previous studies have tended to use multiple small ROIs that focus on Couinaud segments. In an effort to simplify day-to-day analysis, this study assesses the impact of using larger, elliptical ROIs focused on a single hepatic lobe. Read More

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http://dx.doi.org/10.1186/s12880-019-0311-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6368805PMC
February 2019

Development of CT-based methods for longitudinal analyses of paranasal sinus osteitis in granulomatosis with polyangiitis.

BMC Med Imaging 2019 Feb 4;19(1):13. Epub 2019 Feb 4.

Division of Radiology and Nuclear Medicine, Oslo University Hospital, PB 4950 Nydalen, Oslo, 0424, Norway.

Background: Even though progressive rhinosinusitis with osteitis is a major clinical problem in granulomatosis with polyangiitis (GPA), there are no studies on how GPA-related osteitis develops over time, and no quantitative methods for longitudinal assessment. Here, we aimed to identify simple and robust CT-based methods for capture and quantification of time-dependent changes in GPA-related paranasal sinus osteitis and compare performance of the methods under study in a largely unselected GPA cohort.

Methods: GPA patients (n = 121) with ≥3 paranasal CT scans obtained ≥12 months apart and control patients not having GPA or rhinosinusitis (n = 15) were analysed by: (i) Global osteitis scoring scale (GOSS), originally developed for chronic rhinosinusitis; (ii) Paranasal sinus volume by manual segmentation; (iii) Mean maxillary and sphenoid diameter normalised to landmark distances (i. Read More

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http://dx.doi.org/10.1186/s12880-019-0315-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6360792PMC
February 2019
2 Reads

Use of magnetic resonance imaging combined with gene analysis for the diagnosis of fetal congenital heart disease.

BMC Med Imaging 2019 Jan 25;19(1):12. Epub 2019 Jan 25.

Department of Radiology, Maternity and Child Care Center of Liuzhou, Liuzhou, Guangxi Zhuang Autonomous Region, 545000, People's Republic of China.

Background: Fetal deformity is a disease caused by abnormal chromosome structure, which may be influenced by genetic factors as well as the maternal and external environment. Magnetic resonance imaging (MRI) may be used to effectively diagnose fetus deformities. However it has been reported that gene analysis is a more accurate diagnostic method. Read More

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http://dx.doi.org/10.1186/s12880-019-0314-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347844PMC
January 2019
2 Reads

Hypoglycemic encephalopathy mimicking acute ischemic stroke in clinical presentation and magnetic resonance imaging: a case report.

BMC Med Imaging 2019 Jan 24;19(1):11. Epub 2019 Jan 24.

Department of Medical Imaging, Taipei Medical University Hospital, 252 Wu Hsing Street, Taipei, 110, Taiwan.

Background: The imaging findings of hypoglycemic encephalopathy can be considerably similar to those of ischemic infarction or toxic leukoencephalopathy. We demonstrated unusual magnetic resonance (MR) imaging features of hypoglycemic encephalopathy which can be confused with other pathology both on imaging and acute clinical presentation. The diffusion-weighted imaging (DWI) and apparent diffusion coefficients (ADC) map findings in our case further supports the hypothesis of hypoglycemia-induced "excitotoxic injury" of glial cells and myelin sheath that might protect neuron axons from intracellular edema and irreversible damage. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-019-0310-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344988PMC
January 2019
3 Reads

Improving the prediction of the trabecular bone microarchitectural parameters using dental cone-beam computed tomography.

BMC Med Imaging 2019 Jan 23;19(1):10. Epub 2019 Jan 23.

School of Dentistry, College of Dentistry, China Medical University, Taichung, 404, Taiwan, Republic of China.

Background: In this study, we explored how various preprocessing approaches can be employed to enhance the capability of dental CBCT to accurately estimate trabecular bone microarchitectural parameters.

Methods: In total, 30 bovine vertebrae cancellous bone specimens were used for in study. Voxel resolution 18-μm micro-computed tomography (micro-CT) and 100-μm dental CBCT were used to scan each specimen. Read More

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http://dx.doi.org/10.1186/s12880-019-0313-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6343305PMC
January 2019
4 Reads

Accuracy of a non-invasive CT-based measuring technique for cement penetration depth in human tibial UKA.

BMC Med Imaging 2019 Jan 21;19(1). Epub 2019 Jan 21.

Ludwig Maximilians University Clinic for Orthopaedic Surgery, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany.

Background: Aseptic loosening of the tibial component remains a major cause of failure in unicompartmental knee arthroplasty (UKA) and may be related to micro-motion at the cement-bone interface due to insufficient cement penetration depth. Cement penetration is therefore taken as an indicator of solid fixation strength and primary stability. However, its non-invasive clinical assessment remains difficult in vivo as conventional x-ray is prone to distortion and CT-scans (computed tomography) are difficult to assess due to metal artifacts. Read More

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http://dx.doi.org/10.1186/s12880-019-0312-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6341644PMC
January 2019
1 Read

An automatic restoration framework based on GPU-accelerated collateral filtering in brain MR images.

BMC Med Imaging 2019 Jan 19;19(1). Epub 2019 Jan 19.

Computational Biomedical Engineering Laboratory (CBEL), Department of Engineering Science and Ocean Engineering, National Taiwan University, No. 1 Sec. 4 Roosevelt Road, Daan, 10617, Taipei, Taiwan.

Background: Image restoration is one of the fundamental and essential tasks within image processing. In medical imaging, developing an effective algorithm that can automatically remove random noise in brain magnetic resonance (MR) images is challenging. The collateral filter has been shown a more powerful algorithm than many existing methods. Read More

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http://dx.doi.org/10.1186/s12880-019-0305-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6339330PMC
January 2019
1 Read

The role of ultrasound in the diagnosis of the coexistence of primary hyperparathyroidism and non-medullary thyroid carcinoma.

BMC Med Imaging 2019 Jan 18;19(1). Epub 2019 Jan 18.

Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, 600 Yishan Road, Shanghai, 200233, China.

Background: The coexistence of primary hyperparathyroidism(PHPT) and papillary thyroid cancer(PTC) is a known entity; it is a rare and complicated setting for diagnostic imaging.

Methods: After reviewing clinical data of 112 patients who had been treated for PHPT in our facility between January 2015 and December 2017, we identified 7 non-medullary thyroid carcinoma (NMTC) (6.25%). Read More

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http://dx.doi.org/10.1186/s12880-019-0306-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6339388PMC
January 2019
3 Reads

Temporally constrained ICA with threshold and its application to fMRI data.

BMC Med Imaging 2019 Jan 17;19(1). Epub 2019 Jan 17.

State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, 100875, China.

Background: Although independent component analysis (ICA) has been widely applied to functional magnetic resonance imaging (fMRI) data to reveal spatially independent brain networks, the order indetermination of ICA leads to the problem of target component selection. The temporally constrained independent component analysis (TCICA) is capable of automatically extracting the desired spatially independent components by adding the temporal prior information of the task to the mixing matrix for fMRI data analysis. However, the TCICA method can only extract a single component that tends to be a mix of multiple task-related components when there exist several independent components related to one task. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0300-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6337805PMC
January 2019
6 Reads
0.983 Impact Factor

MR imaging features of spinal pilocytic astrocytoma.

BMC Med Imaging 2019 Jan 14;19(1). Epub 2019 Jan 14.

Department of Radiology, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Jingan District, Shanghai, China.

Background: The purpose of this retrospective review is to determine the MR imaging features of pilocytic astrocytoma (PA) in the spinal cord to help neuroradiologists preoperatively differentiate PA from other intramedullary tumors.

Methods: Neuro-oncology database review revealed 13 consecutive patients with a pathological spinal PA diagnosis and availability of preoperative MR imaging. Three patients had preoperative diffusion-weighted MR imaging. Read More

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http://dx.doi.org/10.1186/s12880-018-0296-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6332544PMC
January 2019
1 Read

Reduced scan range abdominopelvic CT in patients with suspected acute appendicitis - impact on diagnostic accuracy and effective radiation dose.

BMC Med Imaging 2019 Jan 11;19(1). Epub 2019 Jan 11.

Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University Tuebingen, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany.

Background: To evaluate a reduced range CT protocol in patients with suspected acute appendicitis as compared to standard abdominal CT regarding diagnostic performance, effective radiation dose and organ doses.

Methods: In this study, we retrospectively included 90 patients (43 female, mean age 56.7 ± 17 years) with suspected acute appendicitis who underwent CT of abdomen and pelvis. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-019-0304-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6329115PMC
January 2019
3 Reads

Improved visualization of peripherally inserted central catheters on chest radiographs of neonates using fractional multiscale image processing.

BMC Med Imaging 2019 Jan 7;19(1). Epub 2019 Jan 7.

Department of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Maximiliansplatz 3, 91054, Erlangen, Germany.

Background: Peripherally inserted central catheters (PICCs) provide secure intravenous access for the delivery of life-sustaining medications and nutrition. They are commonly used in pediatrics. Confirmation of correct central catheter tip position is crucial. Read More

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http://dx.doi.org/10.1186/s12880-018-0302-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6322299PMC
January 2019
1 Read

Probing the intravascular and interstitial compartments of remodeled myocardium in heart failure patients with preserved and reduced ejection fraction: a CMR study.

BMC Med Imaging 2019 Jan 5;19(1). Epub 2019 Jan 5.

Lausanne University Hospital, Cardiovascular Department, and University of Lausanne, Lausanne, Switzerland.

Background: Recent autopsy studies found microvascular rarefaction in remodeled myocardium of patients who died of heart failure with preserved ejection-fraction (HFpEF). This condition has not been investigated so far by non-invasive methods in patients with HFpEF. The aim was to quantify the intravascular volume (IVV) compartment by CMR in HFpEF patients. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0301-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320584PMC
January 2019
3 Reads

Screening mammography for second breast cancers in women with history of early-stage breast cancer: factors and causes associated with non-detection.

BMC Med Imaging 2019 Jan 5;19(1). Epub 2019 Jan 5.

Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.

Background: The aim of our study was to identify the factors and causes associated with non-detection for second breast cancers on screening mammography in women with a personal history of early-stage breast cancer.

Methods: Between January 2000 and December 2008, 7976 women with early-stage breast cancer underwent breast surgery in our institution. The inclusion criteria of our study were patients who had: (a) subsequent in-breast recurrence, (b) surveillance mammography within 1 year before recurrence. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0303-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6321714PMC
January 2019
2 Reads

Evaluation of quantitative parameters of dynamic contrast-enhanced magnetic resonance imaging in qualitative diagnosis of hepatic masses.

BMC Med Imaging 2018 Dec 27;18(1):56. Epub 2018 Dec 27.

Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong Province, China.

Background: To explore the value of parameters of multiphase dynamic contrast-enhanced magnetic resonance imaging (MDCE-MRI) in the qualitative diagnosis of hepatic masses.

Methods: Eighty patients with hepatic masses were retrospectively analyzed. All the patients underwent MDCE-MRI at 3. Read More

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http://dx.doi.org/10.1186/s12880-018-0299-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6307244PMC
December 2018
2 Reads

MRI assessment of aortic flow in patients with pulmonary arterial hypertension in response to exercise.

BMC Med Imaging 2018 Dec 22;18(1):55. Epub 2018 Dec 22.

Department of Medical Physics, University of Wisconsin, 1111 Highland Avenue, Room 1005, Madison, WI, 53705, USA.

Background: While primarily a right heart disease, pulmonary arterial hypertension (PAH) can impact left heart function and aortic flow through a shifted interventricular septum from right ventricular pressure overload and reduced left ventricular preload, among other mechanisms. In this study, we used phase contrast (PC) MRI and a modest exercise challenge to examine the effects of PAH on systemic circulation. While exercise challenges are typically performed with ultrasound in the clinic, MRI exercise studies allow for more reproducible image alignment, more accurate flow quantification, and improved tissue contrast. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0298-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6303959PMC
December 2018
9 Reads

Atypical localization of intraosseous angioleiomyoma in the rib of a pediatric patient: a case report.

BMC Med Imaging 2018 Dec 19;18(1):54. Epub 2018 Dec 19.

Institute of Pathology, School of Medicine, University of Belgrade, Dr Subotica 1, 11000, Belgrade, Republic of Serbia.

Background: This is the first reported case of a primary intraosseous angioleiomyoma and the second case of a primary leiomyoma of the rib, irrespective of age. Angioleiomyomas mostly occur in patients of advanced age, in any part of the body, particularly the lower extremities and present as painful, slow-growing nodules in the dermis, subcutaneous fat or deep fascia. Other localizations, especially bone, are considered extremely rare, as well as their occurrence in paediatric patients. Read More

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http://dx.doi.org/10.1186/s12880-018-0297-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6300016PMC
December 2018
5 Reads

Development of an algorithm to automatically compress a CT image to visually lossless threshold.

BMC Med Imaging 2018 Dec 17;18(1):53. Epub 2018 Dec 17.

Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea.

Background: To develop an algorithm to predict the visually lossless thresholds (VLTs) of CT images solely using the original images by exploiting the image features and DICOM header information for JPEG2000 compression and to evaluate the algorithm in comparison with pre-existing image fidelity metrics.

Methods: Five radiologists independently determined the VLT for 206 body CT images for JPEG2000 compression using QUEST procedure. The images were divided into training (n = 103) and testing (n = 103) sets. Read More

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http://dx.doi.org/10.1186/s12880-017-0244-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6297995PMC
December 2018
1 Read

Ultrasound point shear wave elastography of the pancreas: comparison of patients with type 1 diabetes and healthy volunteers - results from a pilot study.

BMC Med Imaging 2018 Dec 13;18(1):52. Epub 2018 Dec 13.

Medicover Medical Centre, Münsterplatz 6, 89073, Ulm, Germany.

Background: The aims of this study were to establish shear wave elastography of the pancreas by comparing measurements in patients with type 1 diabetes (T1D) and healthy volunteers and to consider whether this method could contribute to the screening or prevention of T1D.

Methods: This pilot study included 15 patients with T1D (10 men, 5 women) and 15 healthy volunteers (10 men, 5 women) as controls. Measurements were performed with a Siemens Acuson S3000 (Siemens Healthcare, Erlangen, Germany) using a 6C1 convex transducer and the Virtual Touch™ tissue quantification (VTQ) method. Read More

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http://dx.doi.org/10.1186/s12880-018-0295-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6293554PMC
December 2018
1 Read

Quantification of liver iron overload disease with laser ablation inductively coupled plasma mass spectrometry.

BMC Med Imaging 2018 Dec 4;18(1):51. Epub 2018 Dec 4.

Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, Pauwelsstr 30, D-52074, Aachen, Germany.

Background: Hereditary hemochromatosis is the most frequent, identified, genetic disorder in Caucasians affecting about 1 in 1000 people of Northern European ancestry, where the associated genetic defect (homozygosity for the p.Cys282Tyr polymorphism in the HFE gene) has a prevalence of approximately 1:200. The disorder is characterized by excess iron stores in the body. Read More

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http://dx.doi.org/10.1186/s12880-018-0291-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278171PMC
December 2018
3 Reads

Diagnostic efficacy of multiple MRI parameters in differentiating benign vs. malignant thyroid nodules.

BMC Med Imaging 2018 Dec 3;18(1):50. Epub 2018 Dec 3.

Department of Radiology, Minhang Branch, Zhongshan Hospital, Fudan University, Shanghai, China.

Background: Diffusion weighted imaging (DWI) has a good diagnostic value for malignant thyroid nodules, but the published protocols suffer from flaws and focus on the apparent diffusion coefficient (ADC). This study investigated the diagnostic performance of multiple MRI parameters in differentiating malignant from benign thyroid nodules.

Methods: This was a retrospective study of 181 consecutive patients (148 benign and 111 malignant nodules, confirmed by pathological results). Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0294-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278127PMC
December 2018
10 Reads

Comparison of two different measurement methods in evaluating basilar atherosclerotic plaque using high-resolution MRI at 3 tesla.

BMC Med Imaging 2018 Dec 3;18(1):49. Epub 2018 Dec 3.

Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, No.168 Changhai Road, Shanghai, 200433, China.

Background: To compare the Self-referenced and Referenced measurement methods in assessing basilar artery (BA) atherosclerotic plaque employing dark blood high-resolution MRI at 3 Tesla.

Methods: Forty patients with > 20% stenosis as identified by conventional MRA were recruited and evaluated on a 3 Tesla MRI system. The outer wall, inner wall and lumen areas of maximal lumen narrowing site and the outer wall and lumen areas of sites that were proximal and distal to the maximal lumen narrowing site were manually traced. Read More

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http://dx.doi.org/10.1186/s12880-018-0293-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6276224PMC
December 2018
2 Reads

Classification of lung nodules in CT scans using three-dimensional deep convolutional neural networks with a checkpoint ensemble method.

BMC Med Imaging 2018 Dec 3;18(1):48. Epub 2018 Dec 3.

Department of Computer Science and Engineering, Korea University, Seoul, Republic of Korea.

Background: Accurately detecting and examining lung nodules early is key in diagnosing lung cancers and thus one of the best ways to prevent lung cancer deaths. Radiologists spend countless hours detecting small spherical-shaped nodules in computed tomography (CT) images. In addition, even after detecting nodule candidates, a considerable amount of effort and time is required for them to determine whether they are real nodules. Read More

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http://dx.doi.org/10.1186/s12880-018-0286-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6276244PMC
December 2018
3 Reads

Prognostic value of metabolic tumor volume of pretreatment F-FAMT PET/CT in non-small cell lung Cancer.

BMC Med Imaging 2018 Nov 26;18(1):46. Epub 2018 Nov 26.

Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Showa-machi 3-39-22, Maebashi, Gunma, 371-8511, Japan.

Background: This study aimed to determine the prognostic value of positron emission tomography (PET) metabolic parameters-namely metabolic tumor volume (MTV), total lesion glycolysis (TLG), and total lesion retention (TLR)-on fluorine-18 (F) fluorodeoxyglucose (FDG) and L- [3-F]-α-methyltyrosine (F-FAMT) PET/CT in patients with non-small-cell lung cancer (NSCLC).

Methods: The study group comprised 112 NSCLC patients who underwent F-FDG and F-FAMT PET/CT prior to any therapy. The MTV, TLG, TLR, and maximum standardized uptake value (SUV) of the primary tumors were determined. Read More

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http://dx.doi.org/10.1186/s12880-018-0292-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258278PMC
November 2018
9 Reads

2D/3D CMR tissue tracking versus CMR tagging in the assessment of spontaneous T2DM rhesus monkeys with isolated diastolic dysfunction.

BMC Med Imaging 2018 Nov 26;18(1):47. Epub 2018 Nov 26.

Department of Radiology, West China Hospital, Sichuan University, 37 Guoxue alley, Chengdu, 610041, Sichuan Province, China.

Background: Spontaneous T2DM in rhesus monkeys manifests as isolated diastolic dysfunction in the early stage of diabetic cardiomyopathy, similar to humans. Myocardial deformation measurements have emerged as a superior way to measure left ventricular (LV) function in the early stage of cardiac dysfunction, making it possible to further evaluate early-stage LV dysfunction in spontaneous T2DM rhesus monkeys.

Methods: Spontaneous T2DM rhesus monkeys with isolated diastolic dysfunction (T2DM-DD, n = 10) and corresponding nondiabetic healthy animals (ND, n = 9) were prospectively scanned for a CMR study. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0288-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258387PMC
November 2018
23 Reads

Evaluation of the diagnostic performance of the simple method of computed tomography in the assessment of patients with shoulder instability: a prospective cohort study.

BMC Med Imaging 2018 Nov 23;18(1):45. Epub 2018 Nov 23.

Department of Radiology, PLA general hospital, No.28 Fuxing Road, Haidian District, Beijing, 100000, China.

Background: Physical examinations may reveal the instability of a glenohumeral joint but cannot diagnose the bony Bankart lesions. Soft tissue Bankart lesion cannot be visualized on traditional radiogram. Magnetic resonance images have high cost and availability issues. Read More

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http://dx.doi.org/10.1186/s12880-018-0290-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6251116PMC
November 2018
17 Reads

Validation of 3D echocardiographic volume detection of left atrium by human cadaveric casts.

BMC Med Imaging 2018 Nov 15;18(1):43. Epub 2018 Nov 15.

Division of Cardiology, Heart and Lung Center, Helsinki University Central Hospital, Meilahti Tower Hospital, P.O. Box 340, FIN-00029 HUS, Helsinki, Finland.

Background: Left atrial volume is a prognostic factor in cardiac pathologies. We aimed to validate left atrial volume detection with 3D and 2D echocardiography (3DE and 2DE) by human cadaveric casts. 3DE facilitates measurement of atrial volume without geometrical assumptions or dependence on imaging angle in contrast to 2DE methods. Read More

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http://dx.doi.org/10.1186/s12880-018-0282-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238356PMC
November 2018
11 Reads

Gadoxetic acid-enhanced magnetic resonance imaging significantly influences the clinical course in patients with colorectal liver metastases.

BMC Med Imaging 2018 Nov 15;18(1):44. Epub 2018 Nov 15.

Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands.

Background: Gadoxetic acid (Primovist™)-enhanced magnetic resonance imaging (P-MRI) scans have higher accuracy and increased detection of small colorectal liver metastases (CRLM) compared to CT scans or conventional MRI scans. But, P-MRI scans are still inconsistently acquired in the diagnostic work up of patients with CRLM. The aim of this study was to determine the influence of P-MRI scans on treatment plan proposition and subsequently the clinical course of the patient. Read More

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http://dx.doi.org/10.1186/s12880-018-0289-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238306PMC
November 2018
2 Reads

Performance of a feature-based algorithm for 3D-3D registration of CT angiography to cone-beam CT for endovascular repair of complex abdominal aortic aneurysms.

BMC Med Imaging 2018 Nov 8;18(1):42. Epub 2018 Nov 8.

Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden.

Background: A crucial step in image fusion for intraoperative guidance during endovascular procedures is the registration of preoperative computed tomography angiography (CTA) with intraoperative Cone Beam CT (CBCT). Automatic tools for image registration facilitate the 3D image guidance workflow. However their performance is not always satisfactory. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0285-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6225564PMC
November 2018
10 Reads

Value of flaccid penile ultrasound in screening for arteriogenic impotence: a preliminary prospective study.

BMC Med Imaging 2018 Nov 6;18(1):40. Epub 2018 Nov 6.

Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.

Background: This prospective study is to evaluate the potential value of sonographic measurements in the flaccid penis for the screening of arteriogenic impotence.

Methods: A consecutive series of 260 Chinese males consulting for sexual dysfunction and 54 controls underwent sonographic examination. The sonographic parameters were correlated with the clinical gold standards, including the international index of erectile function (IIEF) and penile erectile hardness grading scale (EHGS). Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0284-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6219149PMC
November 2018
7 Reads
0.980 Impact Factor

Accurate hybrid template-based and MR-based attenuation correction using UTE images for simultaneous PET/MR brain imaging applications.

BMC Med Imaging 2018 Nov 6;18(1):41. Epub 2018 Nov 6.

Monash Biomedical Imaging, Monash University, Melbourne, Australia.

Background: Attenuation correction is one of the most crucial correction factors for accurate PET data quantitation in hybrid PET/MR scanners, and computing accurate attenuation coefficient maps from MR brain acquisitions is challenging. Here, we develop a method for accurate bone and air segmentation using MR ultrashort echo time (UTE) images.

Methods: MR UTE images from simultaneous MR and PET imaging of five healthy volunteers was used to generate a whole head, bone and air template image for inclusion into an improved MR derived attenuation correction map, and applied to PET image data for quantitative analysis. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0283-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6220492PMC
November 2018
11 Reads

Radial scars/complex sclerosing lesions of the breast: radiologic and clinicopathologic correlation.

BMC Med Imaging 2018 Nov 3;18(1):39. Epub 2018 Nov 3.

Department of Radiology, Kangwon National University Hospital, 200-722 Baengnyeong-Ro 156, Chuncheon-Si, Republic of Korea.

Background: We investigated the radiologic and clinical findings of radial scar and complex sclerosing lesions, and evaluated the rate of pathologic upgrade and predicting factors.

Methods: From review of our institution's database from January 2006 to December 2012, we enrolled 82 radial scars/complex sclerosing lesions in 80 women; 51 by ultrasound guided core needle biopsy, 1 by mammography-guided stereotactic biopsy, and 38 by surgical excision. The initial biopsy pathology revealed that 53 lesions were without high risk lesions and 29 were with high risk lesions. Read More

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http://dx.doi.org/10.1186/s12880-018-0279-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6215659PMC
November 2018
11 Reads

High-definition neural visualization of rodent brain using micro-CT scanning and non-local-means processing.

BMC Med Imaging 2018 10 30;18(1):38. Epub 2018 Oct 30.

The Canberra Hospital, Yamba Drive, Garran, ACT, 2605, Australia.

Background: Micro-CT holds promising potential for phenotyping and histological purposes. However, few have clarified the difference in the neuroimaging quality between ex vivo and in vivo micro-CT scanners. In addition, no direct comparison has been made between micro-CT scans and standard microscopy. Read More

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http://dx.doi.org/10.1186/s12880-018-0280-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6208172PMC
October 2018
2 Reads

CT features of lung agenesis - a case series (6 cases).

BMC Med Imaging 2018 10 30;18(1):37. Epub 2018 Oct 30.

Department of Radiology, French Medical Institute for Mothers & Children (FMIC), behind Kabul Medical University, Jamal mina, P.O. Box: 472, Kabul, Afghanistan.

Back Ground: Lung agenesis is a rare congenital anomaly. The main etiology of the disease is unknown whereas genetic, iatrogenic and viral factors as well as vitamin A deficiency during early pregnancy may result in developmental failure of primitive lung bud causing unilateral pulmonary agenesis. Affected patients usually present with variable respiratory symptoms and recurrent chest infection at any age. Read More

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http://dx.doi.org/10.1186/s12880-018-0281-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6208179PMC
October 2018
5 Reads
0.983 Impact Factor

Dual-phase whole-heart imaging using image navigation in congenital heart disease.

BMC Med Imaging 2018 10 16;18(1):36. Epub 2018 Oct 16.

Division of Imaging Sciences, King's College London, London, UK.

Background: Dual-phase 3-dimensional whole-heart acquisition allows simultaneous imaging during systole and diastole. Respiratory navigator gating and tracking of the diaphragm is used with limited accuracy. Prolonged scan time is common, and navigation often fails in patients with erratic breathing. Read More

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http://dx.doi.org/10.1186/s12880-018-0278-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6192322PMC
October 2018
11 Reads

Automatic differentiation of Glaucoma visual field from non-glaucoma visual filed using deep convolutional neural network.

BMC Med Imaging 2018 10 4;18(1):35. Epub 2018 Oct 4.

Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, China.

Background: To develop a deep neural network able to differentiate glaucoma from non-glaucoma visual fields based on visual filed (VF) test results, we collected VF tests from 3 different ophthalmic centers in mainland China.

Methods: Visual fields obtained by both Humphrey 30-2 and 24-2 tests were collected. Reliability criteria were established as fixation losses less than 2/13, false positive and false negative rates of less than 15%. Read More

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http://dx.doi.org/10.1186/s12880-018-0273-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6172715PMC
October 2018
14 Reads

Use of F-sodium fluoride bone PET for disability evaluation in ankle trauma: a pilot study.

BMC Med Imaging 2018 09 20;18(1):34. Epub 2018 Sep 20.

Division of PM&R, Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA, 94063, USA.

Background: There are no objective and accurate rating tools for permanent impairment of traumatized ankles. The purpose of this study is to assess the role of 18F-Sodium fluoride (18F-NaF) positron emission tomography-computed tomography (PET/CT) bone scans in evaluating patients with limited ankle range of motion (ROM) after trauma.

Methods: 18F-NaF PET/CT was performed in 121 patients (75 men, 46 women; mean age: 45. Read More

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http://dx.doi.org/10.1186/s12880-018-0277-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149075PMC
September 2018
3 Reads

Evaluation of the efficacy of amplitude-integrated electroencephalography in the screening of newborns with metabolic disorder admitted to the NICU.

BMC Med Imaging 2018 09 20;18(1):33. Epub 2018 Sep 20.

Neonatal Health Research Center, Research Institute for Children Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Neonate patients with metabolic disorder show encephalopathy and seizures that may lead to morbidity and mortality. Thus rapid detection and treatment of these patients is necessary. Although Amplitude-integrated electroencephalography (aEEG) has been used for more than a decade in the evaluation of infants with encephalopathy but has not been used in the assessment of neonates suffering from metabolic disorders. Read More

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http://dx.doi.org/10.1186/s12880-018-0274-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6148992PMC
September 2018
2 Reads

3D electroanatomical mapping is less sensitive to atrial remodeling in estimation of true left atrial volume than echocardiography.

BMC Med Imaging 2018 09 18;18(1):32. Epub 2018 Sep 18.

2nd Department of Medicine - Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 128 08, Prague, Czech Republic.

Background: Left atrial (LA) enlargement has been identified as a predictor of worse clinical outcome after catheter ablation for atrial fibrillation (AF). We investigated the correspondence of LA size parameters assessed by echocardiography, CT and 3D electroanatomical mapping in patients with AF treated by catheter ablation.

Methods: We analyzed echocardiographic LA volume measurements by disc summation method (LAV), computed tomography (LAV) and 3D electroanatomical mapping (LAV) in 100 pts. Read More

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http://dx.doi.org/10.1186/s12880-018-0276-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6145078PMC
September 2018
6 Reads

Standardized quality metric system for structural brain magnetic resonance images in multi-center neuroimaging study.

BMC Med Imaging 2018 09 17;18(1):31. Epub 2018 Sep 17.

The Alzheimer's Disease Neuroimaging Initiative, Center for Imaging of Neurodegenerative Disease, San Francisco VA Medical Center, University of California, San Francisco, USA.

Background: Multi-site neuroimaging offer several benefits and poses tough challenges in the drug development process. Although MRI protocol and clinical guidelines developed to address these challenges recommend the use of good quality images, reliable assessment of image quality is hampered by the several shortcomings of existing techniques.

Methods: Given a test image two feature images are extracted. Read More

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http://dx.doi.org/10.1186/s12880-018-0266-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142697PMC
September 2018
2 Reads

Desmoid-type fibromatosis mimicking cystic retroperitoneal mass: case report and literature review.

BMC Med Imaging 2018 09 17;18(1):29. Epub 2018 Sep 17.

Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 80 Guro-dong, Guro-gu, Seoul, 152-703, South Korea.

Background: Retroperitoneal desmoid-type fibromatosis (DF) is an uncommon mesenchymal neoplasm presenting as a firm mass with locally aggressive features. It usually manifests as a well-circumscribed or ill-defined, solid mass on cross-sectional imaging. Cystic changes of DF have been described in the literature in association with prolonged medical treatment or abscess formation. Read More

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http://dx.doi.org/10.1186/s12880-018-0265-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142631PMC
September 2018
3 Reads

Apparent diffusion coefficient as an effective index for the therapeutic efficiency of brain chemoradiotherapy for brain metastases from lung cancer.

BMC Med Imaging 2018 09 17;18(1):30. Epub 2018 Sep 17.

Department of Radiology, The Third Affiliated Hospital of Beijing University of Chinese Medicine, No. 51 Xiaoguan Street, Andingmenwai, Chaoyang District, Beijing, People's Republic of China.

Background: The potential of apparent diffusion coefficient (ADC) value alteration before and after chemoradiotherapy as a potential monitor for therapeutic efficiency of treatment for brain metastases from lung cancer were discussed.

Method: Thirty lung cancer patients with brain metastases, conventional magnetic resonance imaging (MRI) examination and diffusion weighted imaging (DWI) were performed one week before chemoradiotherapy and after one treatment cycle and two treatment cycles. 43 tumor lesions were divided into effective group and invalid group according to the changes of the tumor size. Read More

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http://dx.doi.org/10.1186/s12880-018-0275-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142399PMC
September 2018
8 Reads

A pilot study on adjunctive use of parametric colour-coded digital subtraction angiography in endovascular interventions of haemodialysis access.

BMC Med Imaging 2018 09 15;18(1):28. Epub 2018 Sep 15.

Department of Renal Medicine, Singapore General Hospital, Singapore, Singapore.

Background: Two-dimensional digital subtraction angiography (DSA) is the gold standard for angiographic evaluation of dysfunctional haemodialysis access. We aim to investigate the utility of parametric colour coded DSA in providing hemodynamic analysis during haemodialysis access interventions.

Methods: We retrospectively studied 20 patients who underwent access intervention and applied parametric colour-coding on selected DSA acquisitions before and after percutaneous transluminal angioplasty (PTA). Read More

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http://dx.doi.org/10.1186/s12880-018-0270-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6139131PMC
September 2018
2 Reads

Malignancy rates of B3-lesions in breast magnetic resonance imaging - do all lesions have to be excised?

BMC Med Imaging 2018 09 10;18(1):27. Epub 2018 Sep 10.

Diagnostic Breast Centre and Breast Cancer Screening Brandenburg East, Koepenicker Str. 29, 15711, Koenigs Wusterhausen, Germany.

Background: Approximately 10% of all MRI-guided vacuum-assisted breast biopsies (MR-VAB) are histologically classified as B3 lesions. In most of these cases surgical excision is recommended. The aim of our study was to evaluate the malignancy rates of different B3 lesions which are visible on MRI to allow a lesion-adapted recommendation of further procedure. Read More

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http://dx.doi.org/10.1186/s12880-018-0271-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131767PMC
September 2018
2 Reads

Structural and functional brain changes in perimenopausal women who are susceptible to migraine: a study protocol of multi-modal MRI trial.

BMC Med Imaging 2018 09 6;18(1):26. Epub 2018 Sep 6.

Department of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, Fourth Military Medical University (Air Force Medical University), 569 Xinsi Road, Xi'an, 710038, Shaanxi, China.

Background: As a common clinical symptom that often bothers midlife females, migraine is closely associated with perimenopause. Previous studies suggest that one of the most prominent triggers is the sudden decline of estrogen during perimenopausal period. Hormone replacement therapy (HRT) is widely used to prevent this suffering in perimenopausal women, but effective diagnostic system is lacked for quantifying the severity of the diseaase. Read More

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https://bmcmedimaging.biomedcentral.com/articles/10.1186/s12
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http://dx.doi.org/10.1186/s12880-018-0272-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127929PMC
September 2018
17 Reads
0.983 Impact Factor

An improved nonlinear diffusion in Laplacian pyramid domain for cone beam CT denoising during image-guided vascular intervention.

BMC Med Imaging 2018 09 4;18(1):25. Epub 2018 Sep 4.

INSERM, U1099, F-35000, Rennes, France.

Background: Cone-beam computed tomography (CBCT) acquisition during endovascular aneurysm repair is an emergent technology with more and more applications. It may provide 3-D information to achieve guidance of intervention. However, there is growing concern on the overall radiation doses delivered to patients, thus a low dose protocol is called when scanning. Read More

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http://dx.doi.org/10.1186/s12880-018-0269-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6122689PMC
September 2018
3 Reads

Significance of arterial spin labeling perfusion and susceptibility weighted imaging changes in patients with transient ischemic attack: a prospective cohort study.

BMC Med Imaging 2018 08 20;18(1):24. Epub 2018 Aug 20.

Department of Radiology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark.

Background: In a prospective cohort of patients with transient ischemic attack (TIA), we investigated usefulness and feasibility of arterial spin labeling (ASL) perfusion and susceptibility weighted imaging (SWI) alone and in combination with standard diffusion weighted (DWI) imaging in subacute diagnostic work-up. We investigated rates of ASL and SWI changes and their potential correlation to lasting infarction 8 weeks after ictus.

Methods: Patients with TIA underwent 3T-MRI including DWI, ASL and SWI within 72 h of symptom onset. Read More

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http://dx.doi.org/10.1186/s12880-018-0264-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6102826PMC
August 2018
39 Reads