8,230 results match your criteria Acta Radiologica [Journal]


Early functional outcomes following in-bore transrectal MR image-guided focal laser ablation for men with benign prostatic hyperplasia at one year.

Acta Radiol 2019 Feb 12:284185119826541. Epub 2019 Feb 12.

Sperling Prostate Center, Delray Beach, FL, USA.

Background: Benign prostatic hyperplasia (BPH) is a common benign enlargement of the prostate.

Purpose: To assess complications, recovery, and early functional outcomes following in-bore transrectal magnetic resonance imaging (MRI)-guided focal laser ablation (FLA) for men with BPH at one year.

Material And Methods: The efficacy and safety outcomes at one year were evaluated for MRI-guided FLA of BPH. Read More

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http://dx.doi.org/10.1177/0284185119826541DOI Listing
February 2019

Microbubble contrast-enhanced ultrasound in the vascular evaluation after pancreas transplantation: a single-center experience.

Acta Radiol 2019 Feb 12:284185119828190. Epub 2019 Feb 12.

2 Surgical Department, Section of Transplant Surgery, Oslo University Hospital, Oslo, Norway.

Background: Arterial and venous thrombosis are feared complications of pancreas transplantation (PTx). Microbubble contrast-enhanced ultrasound (CEUS) is a non-invasive imaging technique that can augment diagnostic capabilities of transplant organ perfusion.

Purpose: To document the state to which CEUS can improve the vascular evaluation of PTx compared to conventional Doppler ultrasound (US) directly after surgery. Read More

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http://dx.doi.org/10.1177/0284185119828190DOI Listing
February 2019

Quantitative and qualitative evaluation of low-dose craniocervical computed tomography angiography with a lower tube voltage protocol.

Acta Radiol 2019 Feb 7:284185119825488. Epub 2019 Feb 7.

Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung.

Background: Craniocervical computed tomography angiography (CCCTA) is widely used for the clinical assessment of craniocervical vessels.

Purpose: To investigate and compare the image quality and radiation doses associated with lower-dose (100 and 80 kVp) CCCTA protocols versus the conventional 120-kVp protocol.

Material And Methods: This study enrolled 120 patients and randomly divided them into three groups: group A = 120 kVp; group B = 100 kVp; and group C = 80 kVp. Read More

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http://dx.doi.org/10.1177/0284185119825488DOI Listing
February 2019

Deformation of breast masses between supine ultrasound and prone magnetic resonance imaging.

Acta Radiol 2019 Feb 6:284185118824758. Epub 2019 Feb 6.

Department of Radiology, Kyoto Prefectural University Graduate School of Medicine, Kyoto, Japan.

Background: Breast masses will deform between different postures and modalities in the background mammary gland. However, this difference in deformation between benign and malignant masses has not been studied.

Purpose: To investigate the feasibility of using the change of the longitudinal-transverse ratio (L/T) of a breast mass from supine ultrasonography (US) and prone magnetic resonance imaging (MRI) as representing deformation in differentiating between benign and malignant masses. Read More

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http://dx.doi.org/10.1177/0284185118824758DOI Listing
February 2019
1 Read

Epicardial fat, left ventricular strain, and T1-relaxation times in obese individuals with a normal ejection fraction.

Acta Radiol 2019 Feb 6:284185119826549. Epub 2019 Feb 6.

1 Department of Radiology, University of Bonn, Bonn, Germany.

Background: Cardiac magnetic resonance (CMR) may detect early signs of cardiomyopathy.

Purpose: The purpose of this CMR study was to evaluate epicardial fat volume (EFV), T1-relaxation times (T1), and left ventricular (LV) strain in non-obese (<30 kg/m) and obese (>30 kg/m) individuals with no other cardiovascular risk factor and with a normal LV ejection fraction (LVEF) to detect early changes of obesity cardiomyopathy.

Material And Methods: Seventy-five individuals (38 men) without additional cardiovascular risk factors were examined at 1. Read More

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http://dx.doi.org/10.1177/0284185119826549DOI Listing
February 2019

High-resolution vessel wall magnetic resonance imaging of carotid and intracranial vessels.

Acta Radiol 2019 Feb 6:284185119826538. Epub 2019 Feb 6.

1 Radiology Department, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.

Carotid and intracranial imaging play an essential role in the comprehensive evaluation and prevention for stroke patients. High-resolution vessel wall magnetic resonance imaging (HR VW-MRI) has been applied in carotid and intracranial arteries with optimal ability in displaying the features of various vascular diseases. Recent advanced MRI techniques can not only help in the differential diagnosis of vascular diseases but can also provide information on pathogenesis exploration of underlying mechanisms, follow-up monitoring, and determination of prognosis for patients with cerebral strokes. Read More

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http://dx.doi.org/10.1177/0284185119826538DOI Listing
February 2019

Monitoring of impaired phagocytic function of Kupffer cells in an obstructive cholangitis rat model using superparamagnetic iron oxide MRI and contrast-enhanced ultrasound.

Acta Radiol 2018 Jan 1:284185118784978. Epub 2018 Jan 1.

2 Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.

Background: Kupffer cells (KC) have an important role in the host defense in obstructive cholangitis. Non-invasive monitoring of phagocytic function of KC is pivotal. Several studies showed the possibility of non-invasive monitoring of phagocytic function of KC using superparamagnetic iron oxide-enhanced magnetic resonance imaging (SPIO-MRI) or contrast-enhanced ultrasound (CEUS). Read More

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http://dx.doi.org/10.1177/0284185118784978DOI Listing
January 2018
1 Read

Apparent diffusion coefficients are closely related with high-risk human papilloma virus infection in cervical squamous cell carcinoma patients.

Acta Radiol 2019 Feb 5:284185119828202. Epub 2019 Feb 5.

1 Department of Radiology, East Hospital, Tongji University School of Medicine, Shanghai, PR China.

Background: Diffusion-weighted imaging (DWI) is a functional modality that indirectly represents the biological characteristics of cancer. However, the correlation of apparent diffusion coefficients (ADCs) to HPV type in patients with cervical cancer is still unknown.

Purpose: To explore the relationship between apparent diffusion coefficients calculated by DW-magnetic resonance imaging (MRI) and high-risk human papilloma virus (HR-HPV) infection in cervical squamous cell carcinoma (CSCC) patients. Read More

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http://dx.doi.org/10.1177/0284185119828202DOI Listing
February 2019
2 Reads

Is FDG maximum standardized uptake value of primary breast cancer a prognostic factor for locoregional axillary lymph node metastasis?

Acta Radiol 2019 Feb 4:284185118824770. Epub 2019 Feb 4.

4 Department of Clinical Oncology, Ain Shams University, Cairo, Egypt.

Background: 18F-fluoro-2-deoxy-D-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) has been widely used for diagnosis and staging of disease recurrence in breast cancer patients.

Purpose: To determine the validity of 18F-FDG PET/CT maximum standardized uptake value (SUVmax) of primary breast cancer (SUVmax-T) as a prognostic factor for locoregional axillary lymph node metastasis (ALNM).

Material And Methods: We prospectively studied 198 female patients with pathologically proven breast cancer. Read More

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http://dx.doi.org/10.1177/0284185118824770DOI Listing
February 2019
1 Read

Frequency and radiological characteristics of previously overlooked renal cell carcinoma.

Acta Radiol 2019 Jan 30:284185118823362. Epub 2019 Jan 30.

1 Department of Radiology, Institute of Clinical Sciences, The Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.

Background: A majority of renal tumors are incidentally detected and may therefore have been previously radiologically overlooked.

Purpose: To investigate the frequency of previously radiologically overlooked renal cell carcinoma (RCC), identify tumor characteristics and imaging factors that contribute to misdiagnoses and to investigate its consequences.

Material And Methods: All RCCs identified in a regional cancer registry over one year were retrieved (n = 87). Read More

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http://dx.doi.org/10.1177/0284185118823362DOI Listing
January 2019
7 Reads

Comparison of TOF-MRA and silent scan-MRA in depicting cerebral arteries in patients with Moyamoya disease.

Acta Radiol 2019 Jan 25:284185118824782. Epub 2019 Jan 25.

Department of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Fukushima, Japan.

Background: Silent scan magnetic resonance angiography (silent-MRA) as an arterial spin labeling technique offering sound reduction is insensitive to saturation effect. Time-of-flight (TOF)-MRA has limitations in terms of fine or slow-flow blood vessels due to sensitive saturation effects.

Purpose: Silent-MRA was compared with TOF-MRA for visualizing cerebral arteries in patients with Moyamoya disease (MMD). Read More

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http://dx.doi.org/10.1177/0284185118824782DOI Listing
January 2019

Differentiation between solid pseudopapillary neoplasm of the pancreas and hypovascular pancreatic neuroendocrine tumors by using computed tomography.

Acta Radiol 2019 Jan 24:284185118823343. Epub 2019 Jan 24.

1 Department of Radiology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, PR China.

Background: Solid pseudopapillary neoplasm of the pancreas (SPNs) usually showed slight enhancement in contrast-enhanced computed tomography (CE-CT), which is similar to hypovascular pancreatic neuroendocrine tumors (hypo-PNETs).

Purpose: To show the values of CT imaging features in the differentiation between hypo-PNETs and SPNs.

Material And Methods: Forty-four patients with histologically confirmed SPNs and 24 patients with hypo-PNETs who underwent preoperative dynamic CE-CT were included. Read More

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http://dx.doi.org/10.1177/0284185118823343DOI Listing
January 2019
2 Reads

Detecting recurrent ovarian cancer: revisit the values of whole-body CT and serum CA 125 levels.

Acta Radiol 2019 Jan 24:284185118822649. Epub 2019 Jan 24.

1 Department of Medical Imaging and Intervention, Imaging Core Lab, Institute for Radiological Research, Chang Gung Memorial Hospital at Linkou and Chang Gung University, Taoyuan, Taiwan.

Background: Computed tomography (CT) has served as the first-line imaging modality but its role for detecting recurrent ovarian cancer should be revisited in the era of whole-body CT.

Purpose: To study anatomical distributions and imaging patterns of recurrent ovarian epithelial cancer through whole-body CT and their associations with serum cancer antigen 125 (CA 125) levels.

Material And Methods: This retrospective study approved by the institutional review board comprised a cohort of 497 patients with ovarian cancer. Read More

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http://dx.doi.org/10.1177/0284185118822649DOI Listing
January 2019
2 Reads
1.350 Impact Factor

Contrast-enhanced spectral mammography in the evaluation of breast suspicious calcifications: diagnostic accuracy and impact on surgical management.

Acta Radiol 2019 Jan 24:284185118822639. Epub 2019 Jan 24.

1 Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, Maastricht, The Netherlands.

Background: Detecting pathological breast calcifications remains challenging. Based on recent studies, contrast-enhanced spectral mammography (CESM) was shown to be superior compared to full-field digital mammography (FFDM).

Purpose: To evaluate the diagnostic accuracy of CESM in suspicious breast calcifications and its impact on surgical decision-making. Read More

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http://dx.doi.org/10.1177/0284185118822639DOI Listing
January 2019
1 Read

Cervical spondylotic myelopathy: diagnostic performance of radiologists with varying levels of experience in comparing MR images acquired using field strengths of 1.5 and 3 Tesla.

Acta Radiol 2019 Jan 23:284185118823366. Epub 2019 Jan 23.

4 Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea.

Background: Although both 1.5-Tesla (T) and 3-T magnetic resonance imaging (MRI) are widely used for the diagnosis of cervical spondylotic myelopathy (CSM), there have been no comparative studies.

Purpose: This study compared the performance of both imaging modalities for diagnosing CSM among radiologists with varying experience levels. Read More

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http://dx.doi.org/10.1177/0284185118823366DOI Listing
January 2019

Computed diffusion-weighted imaging for acute pediatric encephalitis/encephalopathy.

Acta Radiol 2019 Jan 23:284185118823335. Epub 2019 Jan 23.

1 Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Japan.

Background: Computed diffusion-weighted imaging (DWI) (cDWI) is a computational technique that can be used to calculate a high b-value image from DWI acquired with at least two different lower b-values.

Purpose: To explore the utility of cDWI for the diagnosis of acute pediatric encephalitis/encephalopathy.

Material And Methods: Twenty-two children were enrolled, for whom acquired DWI (aDWI) with b = 1000 and 3000 was examined during the acute phase of febrile encephalitis/encephalopathy. Read More

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http://dx.doi.org/10.1177/0284185118823335DOI Listing
January 2019

Potential value of non-echo-planar diffusion-weighted imaging of the nasopharynx: a primary study for differential diagnosis between recurrent nasopharyngeal carcinoma and post-chemoradiation fibrosis.

Acta Radiol 2019 Jan 19:284185118822635. Epub 2019 Jan 19.

1 Department of Radiology, Guangdong General Hospital affiliated to South China University of Technology, Guangzhou, Guangdong, PR China.

Background: Distinguishing recurrent nasopharyngeal carcinoma (rNPC) from post-therapeutic inflammatory changes remains a challenging clinical problem.

Purpose: To qualitatively and quantitatively evaluate image quality and compare the diagnostic value of non-echo-planar diffusion-weighted imaging (DWI) based on turbo spin-echo (TSE) and echo-planar imaging (EPI), to distinguish rNPC from post-chemoradiation fibrosis.

Material And Methods: Twenty-seven patients with newly diagnosed rNPC and 35 with biopsy-proven post-chemoradiation fibrosis were categorized into tumor and fibrosis groups, respectively. Read More

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http://dx.doi.org/10.1177/0284185118822635DOI Listing
January 2019
1 Read

Characteristics of patients with enhancing intracranial atherosclerosis and association between plaque enhancement and recent cerebrovascular ischemic events: a high-resolution magnetic resonance imaging study.

Acta Radiol 2019 Jan 16:284185118822645. Epub 2019 Jan 16.

1 Peking University Fifth School of Clinical Medicine, Beijing, PR China.

Background: Atherosclerotic plaque inflammation is a well-known risk factor for the development of ischemic stroke.

Purpose: To investigate the characteristics of patients with enhancing intracranial atherosclerosis and the relationship between plaque enhancement and recent cerebrovascular ischemic events by using high-resolution magnetic resonance imaging (HR-MRI).

Material And Methods: A total of 141 patients (102 men; mean age = 61. Read More

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http://dx.doi.org/10.1177/0284185118822645DOI Listing
January 2019
2 Reads
1.350 Impact Factor

Does a change in ventricular size predict a diagnosis of cerebral venous thrombosis-related acute intracranial hypertension? Results of a retrospective imaging study.

Acta Radiol 2019 Jan 12:284185118823346. Epub 2019 Jan 12.

4 Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, PR China.

Background: Acute intracranial hypertension (IH) is commonly found in patients with cerebral venous thrombosis (CVT). Some magnetic resonance imaging (MRI) findings that are suggestive of acute IH and are thus important for planning treatment and improving clinical outcomes have been reported; however, the significance of changes in ventricular size in the presence of acute CVT-related IH remains unclear.

Purpose: To investigate changes in ventricular size in patients with CVT-related IH by MRI and to determine whether such changes are predictors of IH in these patients. Read More

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http://dx.doi.org/10.1177/0284185118823346DOI Listing
January 2019
3 Reads

Diagnostic accuracy of 3D breath-hold MR cholangiography using compressed sensing acceleration in visualizing non-dilated biliary system in living donor liver transplantation donors.

Acta Radiol 2019 Jan 12:284185118822631. Epub 2019 Jan 12.

1 Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.

Background: Visualizing non-dilated biliary system is important for preoperative mapping of living donor liver transplantation (LDLT) donors.

Purpose: To evaluate diagnostic accuracy of three-dimensional (3D) magnetic resonance cholangiography (MRC) within a breath-hold (BH) using compressed sensing (CS) acceleration in visualizing non-dilated biliary system in LDLT donors.

Material And Methods: For this prospective study, 43 donors who underwent LDLT were enrolled. Read More

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http://dx.doi.org/10.1177/0284185118822631DOI Listing
January 2019
1 Read

Hydro-dissection assisted puncture of an esophageal balloon for percutaneous transesophageal gastrotubing: early experience concerning the technical feasibility, safety, and efficacy.

Acta Radiol 2019 Jan 12:284185118822628. Epub 2019 Jan 12.

Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.

Background: Percutaneous transesophageal gastrotubing (PTEG) is an alternative means of access into the stomach when conventional transabdominal gastric access is not possible.

Purpose: To describe the early clinical experience, technical feasibility, safety, and efficacy of the hydro-dissection assisted puncture of an esophageal balloon used for PTEG.

Material And Methods: A retrospective review was conducted of six, consecutive patients with feeding problems and who were treated with hydro-dissection assisted puncture of an esophageal balloon for PTEG. Read More

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http://dx.doi.org/10.1177/0284185118822628DOI Listing
January 2019
4 Reads

Percutaneous transhepatic biliary tract embolization using gelatin sponge.

Acta Radiol 2019 Jan 10:284185118820049. Epub 2019 Jan 10.

Julius-Maximilians-University of Würzburg, Institute of Diagnostic and Interventional Radiology, Würzburg, Germany.

Background: Percutaneous biliary drainage (PTBD) is a necessary procedure in several benign and malignant conditions. After PTBD removal biliocutaneous fistula is a rare but potential complication. Different embolization agents have been used for transhepatic catheter tract embolization in the past, while there is only little experience using gelatin sponge for this procedure. Read More

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http://dx.doi.org/10.1177/0284185118820049DOI Listing
January 2019
3 Reads

Evaluation of CT enterography findings for endoscopic complete remission after anti-TNF-α therapy in patients with Crohn's disease.

Acta Radiol 2019 01 10:284185118820062. Epub 2019 Jan 10.

2 Department of Internal Medicine, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Republic of Korea.

Background: Unnecessary prolonged treatment with biologic agents for Crohn's disease (CD) patients with endoscopic complete remission (CR) might increase the opportunistic infections.

Purpose: To evaluate computed tomography enterography (CTE) findings obtained on CD patients achieving endoscopic CR after anti-tumor necrosis factor (TNF)-α therapy.

Material And Methods: Thirty-six consecutive patients with CD who had received anti-TNF- α therapy and undergone pre-and post-therapy CTE and ileocolonoscopy were initially enrolled. Read More

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http://dx.doi.org/10.1177/0284185118820062DOI Listing
January 2019
4 Reads

Improved characterization of cerebral infarction using combined tissue T2 and high b-value diffusion MRI in post-thrombectomy patients: a feasibility study.

Acta Radiol 2019 Jan 9:284185118820063. Epub 2019 Jan 9.

2 Center for Multimodal Imaging and Genetics, University of California San Diego, La Jolla, CA, USA.

Background: The utility of incorporating both diffusion information and T2 relaxation times in the imaging work-up of stroke patients is being investigated in a number of clinical trials and scientific studies. However, these tissue characteristics are often determined both qualitatively and independent of each other.

Purpose: To investigate the feasibility of varying T2- (multi echo time [TE]) and diffusion- (multi b-value) weighting within a single series to detect differences in infarcted tissue in post-thrombectomy patients. Read More

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http://dx.doi.org/10.1177/0284185118820063DOI Listing
January 2019
2 Reads

Corrigendum.

Authors:

Acta Radiol 2019 Feb 18;60(2):NP1. Epub 2018 Oct 18.

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http://dx.doi.org/10.1177/0284185118810408DOI Listing
February 2019
1 Read

Quantitative T2-mapping using MRI for detection of prostate malignancy: a systematic review of the literature.

Authors:
Chau Hung Lee

Acta Radiol 2019 01 8:284185118820058. Epub 2019 Jan 8.

1 Department of Radiology, Charite - Universitätzsmedizin Berlin, Berlin, Germany.

Quantitative T2-mapping using magnetic resonance imaging (MRI) allows measurement of tissue T2-relaxation times to complement anatomical and spatial information derived from T2-weighted imaging. Studies have shown varying T2-relaxation times between prostate malignancy and non-malignant prostatic tissue. This paper aims to critically review the literature in a systematic review, to determine the usefulness of T2-mapping in the evaluation of prostate malignancy. Read More

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http://dx.doi.org/10.1177/0284185118820058DOI Listing
January 2019
9 Reads

Noise reduction and image quality in ultra-high resolution computed tomography of the temporal bone using advanced modeled iterative reconstruction.

Acta Radiol 2019 Jan 8:284185118820699. Epub 2019 Jan 8.

1 Department of Diagnostic and Interventional Neuroradiology, Eberhard Karls University, Tübingen, Germany.

Background: The novel advanced modeled iterative reconstruction (ADMIRE) algorithm in ultra-high-resolution (UHR) computed tomography (CT) of the temporal bone has not yet been systematically evaluated.

Purpose: To assess the potential of ADMIRE in temporal bone UHR CT.

Material And Methods: Forty-four patients who underwent UHR CT of the temporal bone using z-axis UHR protocol were retrospectively selected for analysis. Read More

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http://dx.doi.org/10.1177/0284185118820699DOI Listing
January 2019
1 Read

Assessing sizes of breast cancers that show non-mass enhancement on MRI based on inter-observer variability and comparison with pathology size.

Acta Radiol 2019 01 8:284185118817920. Epub 2019 Jan 8.

1 Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.

Background: Magnetic resonance imaging (MRI) is largely used for preoperative evaluation of breast cancer.

Purpose: The aim of this study is to evaluate inter-observer variability for measuring the sizes of non-mass enhancement (NME) breast cancers on various sequences of MRI and to compare with pathology size.

Material And Methods: From January 2013 to April 2017, 70 breast cancers in 70 women showed NME on preoperative MRI. Read More

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http://dx.doi.org/10.1177/0284185118817920DOI Listing
January 2019
1 Read

Texture in the monitoring of regorafenib therapy in patients with colorectal liver metastases.

Acta Radiol 2019 Jan 6:284185118817940. Epub 2019 Jan 6.

1 Department of Radiology, Aarhus University Hospital, Aarhus, Denmark.

Background: The morphological changes seen during treatment with regorafenib represent challenges when evaluating treatment response using RECIST. Computed tomography texture analysis (CTTA) has potential as a non-invasive functional imaging biomarker during treatment with anti-angiogenetic therapies.

Purpose: To explore changes in three-dimensional tumor CTTA in colorectal liver metastases (CRLM) in a cohort of patients with metastatic colorectal cancer during treatment with regorafenib. Read More

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http://dx.doi.org/10.1177/0284185118817940DOI Listing
January 2019
2 Reads

Optimized imaging of the lower abdomen and pelvic region in hepatocyte-specific MRI: evaluation of a whole-abdomen first-pass shuttle protocol in patients with neuroendocrine neoplasms.

Acta Radiol 2018 Dec 12:284185118817936. Epub 2018 Dec 12.

1 Klinik für Radiologie, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Background: Gadoxetic acid (Gd-EOB) has shown its advantages in hepatic tumor evaluation besides its disadvantages in extrahepatic staging due to its short hemodynamic interval. This results in the dilemma of which contrast agent to choose for whole abdominal magnetic resonance imaging (MRI).

Purpose: To evaluate the achievable contrast of a shuttle protocol for Gd-EOB MRI with accelerated 3D-T1-weighted sequences enabling complete dynamic liver imaging plus first-pass pelvic imaging. Read More

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http://dx.doi.org/10.1177/0284185118817936DOI Listing
December 2018
1 Read

Practice variations in salivary gland imaging and utility of virtual unenhanced dual energy CT images for the detection of major salivary gland stones.

Acta Radiol 2018 Dec 12:284185118817906. Epub 2018 Dec 12.

1 Department of Radiology, Jewish General Hospital & McGill University, Montreal, QC, Canada.

Background: There are variations in computed tomography (CT) protocols used for evaluating sialolithiasis, with some protocols including acquisitions before and after IV contrast administration. Dual-energy CT (DECT) can be used to generate virtual unenhanced (VUE) images, potentially precluding the need for an uninfused scan.

Purpose: In this study, we performed a survey in order to assess variations in the imaging approach for sialolithiasis and evaluated the accuracy of DECT VUE images for the detection of salivary stones. Read More

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http://dx.doi.org/10.1177/0284185118817906DOI Listing
December 2018
2 Reads

Intramedullary spinal tumor-like lesions.

Acta Radiol 2018 Dec 11:284185118809540. Epub 2018 Dec 11.

4 Department of Diagnostic Imaging, Institute of Mother and Child, Warsaw, Poland.

The development of magnetic resonance imaging (MRI) has led to an increasingly frequent detection of changes in the spinal cord. The most common intramedullary lesions are: demyelinating; vascular; inflammatory; infectious; and congenital, largely called tumor-like lesions. Spinal cord tumors are relatively rare, as compared with brain tumors. Read More

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http://journals.sagepub.com/doi/10.1177/0284185118809540
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http://dx.doi.org/10.1177/0284185118809540DOI Listing
December 2018
3 Reads

Comparison of two-view digital breast tomosynthesis to three-view digital mammography in a simulated screening setting.

Acta Radiol 2018 Dec 10:284185118815315. Epub 2018 Dec 10.

1 Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA.

Background: Although digital breast tomosynthesis (DBT) may be an effective breast cancer screening modality, alternatives are important to explore as this technique presents some challenges for population screening implementation.

Purpose: To compare the detection performance of three-view (craniocaudal [CC] + mediolateral oblique [MLO] + mediolateral/lateromedial [ML/LM]) digital mammography (DM) to two-view (CC + MLO) DBT.

Material And Methods: In this institutional review board-approved study, recalled screening DBT exams from 3 March 2014 to 31 March 2015 with a ML/LM view acquired within 30 days were retrospectively reviewed for detection of breast cancer. Read More

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http://dx.doi.org/10.1177/0284185118815315DOI Listing
December 2018
2 Reads
1.350 Impact Factor

Lung cancer detected on coronary artery calcium scoring computed tomography: factors delaying diagnosis and predictors of survival.

Acta Radiol 2018 Nov 30:284185118815297. Epub 2018 Nov 30.

1 Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.

Background: Lung cancers are occasionally detected on coronary artery calcium (CAC)-scoring computed tomography (CT). However, the cause of delayed diagnosis and prognostic factors have not been studied.

Purpose: To investigate the causes of delayed diagnosis of lung cancer in patients who undergo CAC-scoring CT and to identify predictors of mortality. Read More

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http://dx.doi.org/10.1177/0284185118815297DOI Listing
November 2018
9 Reads

Alternations of interhemispheric functional connectivity in corneal ulcer patients using voxel-mirrored homotopic connectivity: a resting state fMRI study.

Acta Radiol 2018 Nov 27:284185118815308. Epub 2018 Nov 27.

1 Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China.

Background: Corneal ulcer (CU) is the second ocular disease leading to blindness. Millions of people around the world suffer from CU. However, the relationship between CU and altered functional connectivity in the brain is still unknown. Read More

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http://dx.doi.org/10.1177/0284185118815308DOI Listing
November 2018
10 Reads

Validation and reproducibility of cardiovascular 4D-flow MRI from two vendors using 2 × 2 parallel imaging acceleration in pulsatile flow phantom and in vivo with and without respiratory gating.

Acta Radiol 2019 Mar 26;60(3):327-337. Epub 2018 Jun 26.

1 Department of Clinical Sciences, Lund University, Clinical Physiology, Skåne University Hospital, Lund, Sweden.

Background: 4D-flow magnetic resonance imaging (MRI) is increasingly used.

Purpose: To validate 4D-flow sequences in phantom and in vivo, comparing volume flow and kinetic energy (KE) head-to-head, with and without respiratory gating.

Material And Methods: Achieva dStream (Philips Healthcare) and MAGNETOM Aera (Siemens Healthcare) 1. Read More

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http://dx.doi.org/10.1177/0284185118784981DOI Listing
March 2019
2 Reads

Quantitative parameters correlated well with differentiation of squamous cell carcinoma at head and neck: a study of dynamic contrast-enhanced MRI.

Acta Radiol 2018 Nov 20:284185118809543. Epub 2018 Nov 20.

1 Department of Radiology, Tianjin First Central Hospital, Tianjin, PR China.

Background: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is widely used for the diagnosis and prognostic assessment of head and neck squamous cell carcinoma (HNSCC). However, no research on grading HNSCC using DCE-MRI has been found. We hypothesize that DCE-MRI can grade the HNSCC non-invasively. Read More

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http://dx.doi.org/10.1177/0284185118809543DOI Listing
November 2018
21 Reads

Application of whole-lesion intravoxel incoherent motion analysis using iZOOM DWI to differentiate malignant from benign thyroid nodules.

Acta Radiol 2018 Nov 20:284185118813599. Epub 2018 Nov 20.

1 Department of MR, Beijing Shijitan Hospital, Capital Medical University, Beijing, PR China.

Background: Intravoxel incoherent motion (IVIM) parameters derived from iZOOM diffusion-weighted imaging (DWI) can be used to quantitatively identify malignant thyroid nodules. However, the criteria are not standardized.

Purpose: To determine IVIM parameter values derived from iZOOM DWI that can differentiate malignant from benign thyroid nodules. Read More

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http://dx.doi.org/10.1177/0284185118813599DOI Listing
November 2018
8 Reads

Detecting impaired function of renal allografts at the early stage after transplantation using intravoxel incoherent motion imaging.

Acta Radiol 2018 Nov 17:284185118810979. Epub 2018 Nov 17.

1 Department of Radiology, Tianjin Clinical Research Center for Organ Transplantation, Tianjin First Centre Hospital, Tianjin, PR China.

Background: Detecting renal allografts with impaired function early after renal transplantation and timely intervention are important to ensure a successful outcome.

Purpose: To detect impaired function of renal allografts at the early stage after renal transplantation using intravoxel incoherent motion imaging (IVIM).

Material And Methods: Forty-six recipients with good allograft function and 32 recipients with impaired function were included in this study. Read More

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http://dx.doi.org/10.1177/0284185118810979DOI Listing
November 2018
18 Reads

Outcome after prostatic artery embolization in patients with symptomatic benign prostatic hyperplasia.

Acta Radiol 2018 Nov 17:284185118813709. Epub 2018 Nov 17.

3 Department of Urology, Division of Surgery, Inflammation and Transplantation, Oslo University Hospital, Norway.

Background: Prostatic artery embolization (PAE) has recently been described as a promising alternative treatment for lower urinary tract symptoms (LUTS) due to an enlarged, benign prostate.

Purpose: To evaluate the safety, morbidity, and functional outcomes after PAE.

Material And Methods: Twenty-nine consecutive patients were included. Read More

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http://dx.doi.org/10.1177/0284185118813709DOI Listing
November 2018
9 Reads

CT perfusion and diffusion-weighted MR imaging of pancreatic adenocarcinoma: can we predict tumor grade using functional parameters?

Acta Radiol 2018 Nov 14:284185118812202. Epub 2018 Nov 14.

1 Center for Radiology and Magnetic Resonance Imaging, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.

Background: Pancreatic adenocarcinoma is a highly lethal disease even in initially resectable patients. Functional imaging procedures such as diffusion-weighted imaging (DWI) and computed tomography (CT)-perfusion might facilitate preoperative prediction of factors influencing prognosis in patients with pancreatic adenocarcinoma.

Purpose: To evaluate CT-perfusion and DWI quantitative parameters of pancreatic adenocarcinoma and to assess their correlation with clinicopathological features. Read More

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http://dx.doi.org/10.1177/0284185118812202DOI Listing
November 2018
15 Reads

Geographical variations in the use of diagnostic imaging of musculoskeletal diseases in Norway.

Acta Radiol 2018 Nov 11:284185118812204. Epub 2018 Nov 11.

3 Center for Medical Ethics, University of Oslo, Oslo, Norway.

Background: There is a high prevalence of musculoskeletal disorders in the Norwegian population. A significant number of these patients are referred to diagnostic imaging. Geographical variations in the use of imaging for musculoskeletal disorders may display over- or underuse, and knowledge about these variations is required. Read More

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http://dx.doi.org/10.1177/0284185118812204DOI Listing
November 2018
6 Reads

Ultrasensitive Doppler as a tool for the diagnosis of testicular ischemia during the Valsalva maneuver: a new way to explore varicoceles?

Acta Radiol 2018 Nov 5:284185118810981. Epub 2018 Nov 5.

3 Institut Langevin, ESPCI Paris, PSL Research University, Paris, France.

Background: Varicocele is among the most common causes of male infertility because of various mechanism, including hypoxia.

Purpose: To evaluate testicular vascularization (TV) with ultrasensitive Doppler before and during the Valsalva maneuver (VM) and correlate TV changes to varicocele's spermatic venous reflux graduated by color Doppler.

Material And Methods: From January to February 2016, 69 men (135 testis) referred for scrotal ultrasound were prospectively enrolled. Read More

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http://dx.doi.org/10.1177/0284185118810981DOI Listing
November 2018
12 Reads

Combination of the double-microcatheter technique and triaxial system in coil packing for visceral and renal artery aneurysms.

Acta Radiol 2018 Nov 5:284185118810983. Epub 2018 Nov 5.

Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.

Background: In coil packing for visceral artery aneurysms (VAAs), difficulties are sometimes associated with preserving the patency of the parent artery, particularly for wide-neck aneurysms. However, the double-microcatheter technique effectively prevents coil migration, while the triple-coaxial (triaxial) system is useful for reducing microcatheter kick-back.

Purpose: To assess the feasibility of combining these two techniques in coil packing for VAAs. Read More

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http://journals.sagepub.com/doi/10.1177/0284185118810983
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http://dx.doi.org/10.1177/0284185118810983DOI Listing
November 2018
11 Reads

Localization of radio-recurrence within the prostate: anti-3-18F-FACBC PET/CT compared with multiparametric MRI using histopathology as reference standard.

Acta Radiol 2018 Oct 31:284185118810977. Epub 2018 Oct 31.

5 Department of Oncology, Oslo University Hospital, Oslo, Norway.

Background: Focal treatment of prostate cancer recurrence is emerging and increases the demand for precision in imaging; pure detection is no longer enough and accurate localization is needed.

Purpose: To investigate the ability of anti-1-amino-3-[18F]fluorocyclobutane-1-carboxylic acid (FACBC) PET/CT to localize radio-recurrences within the prostate, compared to multiparametric magnetic resonance imaging (mpMRI) and with histopathology as the reference standard.

Material And Methods: This prospective salvage focal brachytherapy protocol included 20 patients (mean age = 66 years; age range = 57-72 years) with biochemical recurrence after primary radiotherapy. Read More

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http://dx.doi.org/10.1177/0284185118810977DOI Listing
October 2018
3 Reads

Comparison of standard-dose and half-dose dual-source abdominopelvic CT scans for evaluation of acute abdominal pain.

Acta Radiol 2018 Oct 30:284185118809544. Epub 2018 Oct 30.

4 University of Ulsan College of Medicine, Seoul, Republic of Korea.

Background: With the increasing number of computed tomography (CT) scans used for evaluation of acute abdominal pain, patient radiation exposure has increased rapidly.

Purpose: To determine whether the diagnostic performance of half-dose abdominopelvic CT is non-inferior to that of standard-dose CT for patients with acute abdominal pain.

Material And Methods: Ninety-eight patients with acute abdominal pain underwent dual-source abdominopelvic CT. Read More

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http://dx.doi.org/10.1177/0284185118809544DOI Listing
October 2018
3 Reads

Computer-assisted detection of acute pulmonary embolism at CT pulmonary angiography in children and young adults: a diagnostic performance analysis.

Acta Radiol 2018 Oct 30:284185118808547. Epub 2018 Oct 30.

1 Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, PR China.

Background: To diagnose pulmonary embolism (PE) in children and adults since evaluating tiny pulmonary vasculature beyond segmental level is a challenging and demanding task with thousands of images.

Purpose: To evaluate the effect of computer-assisted detection (CAD) on acute PE on CTPA in children and young adults by readers with varying experience levels.

Material And Methods: Six radiologists were retrospectively divided into three groups according to experience levels and assessed the CTPA studies on a per-emboli basis. Read More

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http://dx.doi.org/10.1177/0284185118808547DOI Listing
October 2018
4 Reads

Single-center experience with six-month follow-up of FRED Jr® flow diverters for intracranial aneurysms in small arteries.

Acta Radiol 2018 Oct 25:284185118805266. Epub 2018 Oct 25.

2 Department of Neurosurgery, Turku University Hospital, Turku, Finland.

Background: The flow-diverter stent (FD) has been proven to be a safe and efficient device in the treatment of large and giant wide-necked proximal internal carotid artery aneurysms.

Purpose: To report the outcomes using Flow Re-Direction Endoluminal Device Junior (Fred Jr) flow diverters in the treatment of aneurysms in or distal to the circle of Willis with parent artery diameter < 2.5 mm. Read More

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http://dx.doi.org/10.1177/0284185118805266DOI Listing
October 2018
8 Reads

Dynamic contrast-enhanced computed tomography as a potential biomarker in patients with metastatic colorectal cancer treated with regorafenib.

Acta Radiol 2018 Oct 22:284185118806652. Epub 2018 Oct 22.

1 Department of Radiology, Aarhus University Hospital, Aarhus, Denmark.

Background: RECIST 1.1 presents challenges when evaluating treatment response to angiogenesis inhibitors. The objective response rate, when evaluating the treatment effect of regorafenib, using RECIST 1. Read More

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http://dx.doi.org/10.1177/0284185118806652DOI Listing
October 2018
10 Reads

Apparent diffusion coefficients measured using different regions of interest in differentiating borderline from malignant ovarian tumors.

Acta Radiol 2018 Oct 18:284185118805272. Epub 2018 Oct 18.

1 Department of Radiology, Jinshan Hospital, Fudan University, Shanghai, PR China.

Background Apparent diffusion coefficients (ADCs) measured using different regions of interest (ROIs) are widely used in differentiating ovarian tumors. Purpose To evaluate the diagnostic performance of ADCs with different ROIs in differentiating borderline ovarian tumors (BOTs) from malignant ovarian tumors (MOTs). Material and Methods Thirty-five BOTs and 54 MOTs who underwent diffusion-weighted magnetic resonance imaging (MRI) were evaluated retrospectively. Read More

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http://dx.doi.org/10.1177/0284185118805272DOI Listing
October 2018
9 Reads