9,970 results match your criteria European Radiology [Journal]


Lipiodol deposition in portal vein tumour thrombus predicts treatment outcome in HCC patients after transarterial chemoembolisation.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, China.

Objective: To study lipiodol deposition in portal vein tumour thrombus (PVTT) in predicting the treatment outcome of hepatocellular carcinoma (HCC) patients after transarterial chemoembolisation (TACE).

Methods: We retrospectively reviewed data from 379 HCC patients with PVTT who underwent TACE as the initial treatment at Sun Yat-Sen University Cancer Center from January 2008 to December 2015. Patients were grouped by positive and negative lipiodol deposition based on the extent of lipiodol deposition in PVTT. Read More

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http://dx.doi.org/10.1007/s00330-019-06157-0DOI Listing

MRI for characterization of benign hepatocellular tumors on hepatobiliary phase: the added value of in-phase imaging and lesion-to-liver visual signal intensity ratio.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

Department of Gastrointestinal Imaging, Lille University Hospital, Rue Michel Polonovski, 59037, Lille Cedex, France.

Objectives: To evaluate the lesion-to-liver visual signal intensity ratio (SIR) before and at the hepatobiliary phase MRI (HBP-MRI) after gadobenate dimeglumine (Gd-BOPTA) injection, using several T1-weighted images (T1-WI), for the characterization of benign hepatocellular lesions.

Methods: Patients with histologically proven focal nodular hyperplasia (FNH) and hepatocellular adenoma (HCA), who underwent Gd-BOPTA-enhanced HBP-MRI from 2009 to 2017, were retrospectively identified. The lesion-to-liver SIR was visually assessed by two radiologists on HBP (post-HBP analysis) and compared with that of unenhanced sequences (pre/post-HBP analysis) on T1-WI in-phase (T1-IP), out-of-phase (T1-OP), and fat suppression (T1-FS). Read More

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http://dx.doi.org/10.1007/s00330-019-06210-yDOI Listing

Combination of intratumoural micellar paclitaxel with radiofrequency ablation: efficacy and toxicity in rodents.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

Department of Ultrasound, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education /Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China.

Objectives: To determine whether radiofrequency ablation (RFA) is more effective when combined with intratumoural injection (IT) than with intravenous injection (IV) of micelles.

Materials And Methods: Balb/c mice bearing 4T1 breast cancer were used. The tumour drug accumulation and biodistribution in major organs were evaluated at different time points after IT, IV, IT+RFA and IV+RFA. Read More

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http://dx.doi.org/10.1007/s00330-019-06207-7DOI Listing

Modified CAIPIRINHA-VIBE without view-sharing on gadoxetic acid-enhanced multi-arterial phase MR imaging for diagnosing hepatocellular carcinoma: comparison with the CAIPIRINHA-Dixon-TWIST-VIBE.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

Department of Radiology, Biomedical Research Institute, Pusan National University Yangsan Hospital, and Pusan National University School of Medicine, Busan, South Korea.

Purpose: We evaluated the detection rate and degree of motion artifact of the modified CAIPIRINHA-VIBE (mC-VIBE) without view-sharing and compare them with the CAIPIRINHA-Dixon-TWIST-VIBE (CDT-VIBE) with view-sharing on multi-arterial gadoxetic acid-enhanced liver MRI in the assessment of hepatocellular carcinoma (HCC).

Material And Methods: We retrospectively identified 114 pathological-proven hepatic tumors in 114 patients with risk of HCC who underwent multi-arterial gadoxetic acid-enhanced MRI between June 2016 and June 2018. All patients underwent triple arterial phase imaging using the mC-VIBE without view-sharing (54 patients; 49 HCCs and 5 non-HCCs) or the CDT-VIBE with view-sharing (60 patients; 55 HCCs and 5 non-HCCs). Read More

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http://dx.doi.org/10.1007/s00330-019-06095-xDOI Listing

The relationship between adrenal incidentalomas and mortality risk.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

Department of Radiology, Albert Einstein College of Medicine and Montefiore Medical Center, 111 E 210th Street, Bronx, New York, NY, 10467, USA.

Objective: To determine all-cause mortality risk in patients with and without adrenal incidentaloma.

Methods: Retrospective cohort study of patients with CT abdomen performed within 24 h of emergency room presentation at an academic medical center from January 1, 2005, to December 31, 2009, without history of adrenal disease, adrenal lab testing, or cancer. Incidentaloma cohort identified by database query of imaging reports followed by manual review and matched to no-nodule controls at 3:1 on age ± 1 year and exam date ± 3 months. Read More

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http://dx.doi.org/10.1007/s00330-019-06202-yDOI Listing

Gynecology Imaging Reporting and Data System (GI-RADS): diagnostic performance and inter-reviewer agreement.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

Department of Pathology, Zagazig University, Zagazig, Egypt.

Objective: To evaluate diagnostic performance and inter-reviewer agreement (IRA) of the Gynecologic Imaging Reporting and Data System (GI-RADS) for diagnosis of adnexal masses (AMs) by pelvic ultrasound (US).

Patients And Methods: A prospective multicenter study included 308 women (mean age, 41 ± 12.5 years; range, 15-73 years) with 325 AMs detected by US. Read More

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http://dx.doi.org/10.1007/s00330-019-06181-0DOI Listing

Can we reduce the workload of mammographic screening by automatic identification of normal exams with artificial intelligence? A feasibility study.

Eur Radiol 2019 Apr 16. Epub 2019 Apr 16.

Department of Radiology and Nuclear Medicine, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands.

Purpose: To study the feasibility of automatically identifying normal digital mammography (DM) exams with artificial intelligence (AI) to reduce the breast cancer screening reading workload.

Methods And Materials: A total of 2652 DM exams (653 cancer) and interpretations by 101 radiologists were gathered from nine previously performed multi-reader multi-case receiver operating characteristic (MRMC ROC) studies. An AI system was used to obtain a score between 1 and 10 for each exam, representing the likelihood of cancer present. Read More

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http://link.springer.com/10.1007/s00330-019-06186-9
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http://dx.doi.org/10.1007/s00330-019-06186-9DOI Listing
April 2019
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Low incidence of nephrotoxicity following intravenous administration of iodinated contrast media: a prospective study.

Eur Radiol 2019 Apr 11. Epub 2019 Apr 11.

Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche", Via Tronto 10/A, 60126, Ancona, Italy.

Objectives: To estimate the incidence of contrast-induced acute kidney injury (CI-AKI) after intravenous (iv) iodinated contrast material (ICM) exposure.

Methods: This prospective cohort study included all consecutive patients who underwent radiological investigations using low-osmolar iopamidol 370 mg/ml in a regional hospital over a period of 36 months, without any exclusion criteria. The estimated glomerular filtration rate (eGFR) was evaluated using the MRDR equation before (2-10 days) and after (24-36 h) radiological investigations. Read More

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http://dx.doi.org/10.1007/s00330-019-06147-2DOI Listing

Increased tortuosity of ACA might be associated with increased risk of ACoA aneurysm development and less aneurysm dome size: a computer-aided analysis.

Eur Radiol 2019 Apr 11. Epub 2019 Apr 11.

TENSOR- Team of NeuroSurgery-Oriented Research, Jagiellonian University Medical College, Kraków, Poland.

Objectives: We decided to perform computer-aided analysis of the anterior cerebral artery (ACA) to check for a potential correlation with anterior communicating artery (ACoA) aneurysm presence and growth.

Methods: We retrospectively analyzed the ACA anatomy of 121 patients with ACoA aneurysms along with 121 age, risk factors, and vessel side-matched control patients without an ACoA aneurysm. We obtained their medical history and digital subtraction angiography (DSA) data from their medical records. Read More

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http://link.springer.com/10.1007/s00330-019-06146-3
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http://dx.doi.org/10.1007/s00330-019-06146-3DOI Listing
April 2019
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Prognostic value of acoustic structure quantification in patients with Hashimoto's thyroiditis.

Eur Radiol 2019 Apr 15. Epub 2019 Apr 15.

Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, South Korea.

Objectives: Assessment of thyroid parenchymal echogenicity on ultrasonography is a predictor of future thyroid dysfunction. Our objective was to determine the prognostic value of acoustic structure quantification (ASQ) to predict the outcome of patients with Hashimoto's thyroiditis (HT).

Materials And Methods: We prospectively evaluated 90 patients with HT using ASQ from May to December 2013. Read More

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http://dx.doi.org/10.1007/s00330-019-06174-zDOI Listing

Safety of percutaneous renal cryoablation: an international multicentre experience from the EuRECA retrospective percutaneous database.

Eur Radiol 2019 Apr 15. Epub 2019 Apr 15.

Department of Radiology, University Hospital Southampton NHS Trust, Tremona Road, Southampton, SO16 6YD, UK.

Objective: To investigate the safety profile of percutaneous cryoablation of renal tumours < 7 cm, utilising data extracted from an international multicentre registry.

Materials And Methods: A retrospective review of all immediate and delayed complications from a multicentre database was performed and was categorised according to the Clavien-Dindo classification. Statistical analysis was performed for both overall complications (all Clavien-Dindo) and major complications (Clavien-Dindo 3 to 5). Read More

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http://dx.doi.org/10.1007/s00330-019-06191-yDOI Listing

Head and neck squamous cell carcinoma: prediction of cervical lymph node metastasis by dual-energy CT texture analysis with machine learning.

Eur Radiol 2019 Apr 12. Epub 2019 Apr 12.

Department of Radiology and Research Institute of the McGill University Health Centre, McGill University, Room C02.5821, 1001 Decarie Blvd, Montreal, QC, H4A 3J1, Canada.

Objectives: This study was conducted in order to evaluate a novel risk stratification model using dual-energy CT (DECT) texture analysis of head and neck squamous cell carcinoma (HNSCC) with machine learning to (1) predict associated cervical lymphadenopathy and (2) compare the accuracy of spectral versus single-energy (65 keV) texture evaluation for endpoint prediction.

Methods: Eighty-seven patients with HNSCC were evaluated. Texture feature extraction was performed on virtual monochromatic images (VMIs) at 65 keV alone or different sets of multi-energy VMIs ranging from 40 to 140 keV, in addition to iodine material decomposition maps and other clinical information. Read More

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http://dx.doi.org/10.1007/s00330-019-06159-yDOI Listing

Prognostic value of ADC quantification for clinical outcome in uterine cervical cancer treated with concurrent chemoradiotherapy.

Eur Radiol 2019 Apr 12. Epub 2019 Apr 12.

Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Objectives: To investigate the prognostic value of diffusion-weighted imaging (DWI) in predicting clinical outcome in patients with cervical cancer after concurrent chemoradiotherapy (CCRT).

Methods: We enrolled 124 cervical cancer patients who received definitive CCRT and underwent 3 T-MRI before and 1 month after initiating treatment. The mean apparent diffusion coefficient (ADC) value was measured on the tumor and the changes in ADC percentage (ΔADC) between the two time points were calculated. Read More

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http://dx.doi.org/10.1007/s00330-019-06204-wDOI Listing
April 2019
4.014 Impact Factor

Cortical morphology of chronic users of codeine-containing cough syrups: association with sulcal depth, gyrification, and cortical thickness.

Eur Radiol 2019 Apr 12. Epub 2019 Apr 12.

Department of Medical Imaging, Guangdong Second Provincial General Hospital, 466 Xingang Rd, Haizhu District, Guangzhou, 510317, People's Republic of China.

Objectives: The study aimed to explore the effects of codeine-containing cough syrup (CCS) exposure on cortical morphology and the relationship between cortical characteristics and CCS dependence.

Methods: Cortical morphometry based on Computational Anatomy Toolbox (CAT12) was used to compare changes in sulcal depth, gyrification, and cortical thickness of the cerebral cortex from 40 CCS users and 40 healthy controls (HCs) with two-sample t tests (p < 0.05, multiple comparison corrected). Read More

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http://link.springer.com/10.1007/s00330-019-06165-0
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http://dx.doi.org/10.1007/s00330-019-06165-0DOI Listing
April 2019
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Pancreas shrinkage following recurrent acute pancreatitis: an MRI study.

Eur Radiol 2019 Apr 12. Epub 2019 Apr 12.

School of Medicine, University of Auckland, Auckland, New Zealand.

Objective: Transition from the first attack of acute pancreatitis (AP) to chronic pancreatitis (CP) via recurrent AP is common. Total pancreas volume (TPV) and pancreas diameters are often reduced in advanced CP but have never been studied after AP. The objective of this study was to investigate pancreas size after clinical resolution of AP and its association with the number of AP attacks. Read More

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http://dx.doi.org/10.1007/s00330-019-06126-7DOI Listing

Quantitative assessment of diabetic amyotrophy using magnetic resonance neurography-a case-control analysis.

Eur Radiol 2019 Apr 12. Epub 2019 Apr 12.

UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390-9178, USA.

Objectives: To quantitatively characterize diabetic amyotrophy (DA), or diabetic lumbosacral radiculoplexopathy, and compare with controls using magnetic resonance neurography (MRN).

Methods: Forty controls and 23 DA cases were analyzed qualitatively and quantitatively. Cross-sectional areas (CSAs) of bilateral L3 through S2 lumbosacral nerve roots, femoral nerves, and sciatic nerves (proximal and distal measurements) were measured. Read More

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http://link.springer.com/10.1007/s00330-019-06162-3
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http://dx.doi.org/10.1007/s00330-019-06162-3DOI Listing
April 2019
2 Reads

Deep learning reconstruction improves image quality of abdominal ultra-high-resolution CT.

Eur Radiol 2019 Apr 11. Epub 2019 Apr 11.

Diagnostic Radiology, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan.

Objectives: Deep learning reconstruction (DLR) is a new reconstruction method; it introduces deep convolutional neural networks into the reconstruction flow. This study was conducted in order to examine the clinical applicability of abdominal ultra-high-resolution CT (U-HRCT) exams reconstructed with a new DLR in comparison to hybrid and model-based iterative reconstruction (hybrid-IR, MBIR).

Methods: Our retrospective study included 46 patients seen between December 2017 and April 2018. Read More

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http://link.springer.com/10.1007/s00330-019-06170-3
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http://dx.doi.org/10.1007/s00330-019-06170-3DOI Listing
April 2019
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Non-branched microcysts of the pancreas on MR imaging of patients with pancreatic tumors who had pancreatectomy may predict the presence of pancreatic intraepithelial neoplasia (PanIN): a preliminary study.

Eur Radiol 2019 Apr 10. Epub 2019 Apr 10.

Paris Diderot University, Sorbonne Paris Cité, INSERM U1149 CRB3, Paris, France.

Purpose: To evaluate whether pancreatic parenchymal abnormalities on magnetic resonance imaging (MRI) are associated with pancreatic intraepithelial neoplasia (PanIN) on histology.

Materials And Methods: Retrospective study approved by institutional review board. One hundred patients (48 men, 52 women; mean age, 53. Read More

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http://dx.doi.org/10.1007/s00330-019-06154-3DOI Listing
April 2019
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The vertebral 3'-deoxy-3'-F-fluorothymidine uptake predicts the hematological toxicity after systemic chemotherapy in patients with lung cancer.

Eur Radiol 2019 Apr 10. Epub 2019 Apr 10.

Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan.

Objectives: Although hematological toxicities (HT) are the leading adverse events of systemic chemotherapy, the estimation of severe HT is challenging. Recently, 3'-deoxy-3'-[F]-fluorothymidine (F-FLT) accumulation with PET has been considered a biomarker of the cell proliferation. This study aims to elucidate whether the vertebral accumulation of F-FLT could estimate severe HT during platinum-doublet chemotherapy. Read More

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http://dx.doi.org/10.1007/s00330-019-06161-4DOI Listing
April 2019
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Comparison of T1 mapping and fixed T1 method for dynamic contrast-enhanced MRI perfusion in brain gliomas.

Eur Radiol 2019 Apr 10. Epub 2019 Apr 10.

Neuroradiology Unit and CERMAC, Vita-Salute San Raffaele University and IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.

Objectives: To compare dynamic contrast-enhanced MRI (DCE-MRI) data obtained using different prebolus T1 values in glioma grading and molecular profiling.

Methods: We retrospectively reviewed 83 cases of gliomas: 46 lower-grade gliomas (LGG; grades II and III) and 37 high-grade gliomas (HGG; grade IV). DCE-MRI maps of plasma volume fraction (Vp), extravascular-extracellular volume fraction (Ve), and tracer transfer constant from plasma to tissue (K) were obtained using a fixed T1 value of 1400 ms and a measured T1 obtained with variable flip angle (VFA). Read More

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http://dx.doi.org/10.1007/s00330-019-06122-xDOI Listing

Can IVIM help predict HCC recurrence after hepatectomy?

Eur Radiol 2019 Apr 10. Epub 2019 Apr 10.

Department of Radiology, the Third Affiliated Hospital, Sun Yat-sen University (SYSU), No 600, Tianhe Road, Guangzhou, 510630, People's Republic of China.

Purpose: To determine the diagnostic performance of intravoxel incoherent motion (IVIM) parameters to predict tumor recurrence after hepatectomy in patients with hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC).

Materials And Methods: One hundred and fifty-seven patients (mean age 52.54 ± 11. Read More

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http://dx.doi.org/10.1007/s00330-019-06180-1DOI Listing
April 2019
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A radiomics nomogram may improve the prediction of IDH genotype for astrocytoma before surgery.

Eur Radiol 2019 Apr 10. Epub 2019 Apr 10.

Department of Radiology, The first hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China.

Objectives: To develop and validate a radiomics nomogram to preoperative prediction of isocitrate dehydrogenase (IDH) genotype for astrocytomas, which might contribute to the pretreatment decision-making and prognosis evaluating.

Methods: One hundred five astrocytomas (Grades II-IV) with contrast-enhanced T1-weighted imaging (CE-T1WI), T2 fluid-attenuated inversion recovery (T2FLAIR), and apparent diffusion coefficient (ADC) map were enrolled in this study (training cohort: n = 74; validation cohort: n = 31). IDH1/2 genotypes were determined using Sanger sequencing. Read More

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http://dx.doi.org/10.1007/s00330-019-06056-4DOI Listing

Computed tomographic colonography: how many and how fast should radiologists report?

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

St Mark's Academic Institute, St Mark's Hospital, Harrow, UK.

Objectives: To determine if polyp detection at computed tomographic colonography (CTC) is associated with (a) the number of CTC examinations interpreted per day and (b) the length of time spent scrutinising the scan.

Methods: Retrospective observational study from two hospitals. We extracted Radiology Information System data for CTC examinations from Jan 2012 to Dec 2015. Read More

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http://dx.doi.org/10.1007/s00330-019-06175-yDOI Listing

CT diagnostic reference levels: are they appropriately computed?

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Radiology, Epicura, Clinique Louis Caty, 136 Rue Louis Caty, 7331, Baudour, Belgium.

Objectives: To estimate the variability of CT diagnostic reference levels (DRLs) according to the methods used for computing collected data.

Methods: Dose-length products (DLP) were collected by our national nuclear control agency from the 250 devices installed in 140 medical centers in the country. In 2015, the number of head, thorax, abdomen, and lumbar spine examinations collected in these centers ranged from approximately 20,000 to 42,000. Read More

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http://link.springer.com/10.1007/s00330-019-06141-8
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http://dx.doi.org/10.1007/s00330-019-06141-8DOI Listing
April 2019
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Combined automated 3D volumetry by pulmonary CT angiography and echocardiography for detection of pulmonary hypertension.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Diagnostic and Interventional Radiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, 69120, Heidelberg, Germany.

Objectives: To assess the diagnostic accuracy of automated 3D volumetry of central pulmonary arteries using computed tomography pulmonary angiography (CTPA) for suspected pulmonary hypertension alone and in combination with echocardiography.

Methods: This retrospective diagnostic accuracy study included 70 patients (mean age 66.7, 48 female) assessed for pulmonary hypertension by CTPA and transthoracic echocardiography with estimation of the pulmonary arterial systolic pressure (PASP). Read More

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http://dx.doi.org/10.1007/s00330-019-06188-7DOI Listing

Image-based biomarkers for solid tumor quantification.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Diagnostic Radiology, McGill University Health Centre, McGill University, 1001 Décarie Boulevard, Montreal, QC, H4A 3J1, Canada.

The last few decades have witnessed tremendous technological developments in image-based biomarkers for tumor quantification and characterization. Initially limited to manual one- and two-dimensional size measurements, image biomarkers have evolved to harness developments not only in image acquisition technology but also in image processing and analysis algorithms. At the same time, clinical validation remains a major challenge for the vast majority of these novel techniques, and there is still a major gap between the latest technological developments and image biomarkers used in everyday clinical practice. Read More

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http://link.springer.com/10.1007/s00330-019-06169-w
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http://dx.doi.org/10.1007/s00330-019-06169-wDOI Listing
April 2019
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Quantitative contrast-enhanced US helps differentiating neoplastic vs non-neoplastic gallbladder polyps.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.

Objectives: To differentiate between large (≥ 1 cm in diameter) gallbladder (GB) non-neoplastic and neoplastic polyps using quantitative analysis of contrast-enhanced ultrasound (CEUS) findings.

Methods: From September 2017 to May 2018, 29 patients (10 males; median age, 63 years) with GB polyps of ≥ 1 cm in diameter who were undergoing cholecystectomy were consecutively enrolled. All patients underwent preoperative conventional US and CEUS examinations. Read More

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http://dx.doi.org/10.1007/s00330-019-06123-wDOI Listing

MRI predictive score of pial vascularization of supratentorial intracranial meningioma.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Radiology, Centre Hospitalier et Universitaire Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France.

Objective: Meningiomas are highly vascularized tumors which may recruit pial blood supply. Pial supply complicates tumor treatment in numerous ways. The objective of this study was to establish a reliable MRI-based diagnostic score to predict the existence of pial blood supply in supratentorial intracranial meningiomas and then correlate the score with clinical and surgical outcomes and histopathological findings. Read More

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http://dx.doi.org/10.1007/s00330-019-06197-6DOI Listing
April 2019
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Magnetic resonance imaging radiomics in categorizing ovarian masses and predicting clinical outcome: a preliminary study.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Radiology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, People's Republic of China.

Purpose: To evaluate the ability of MRI radiomics to categorize ovarian masses and to determine the association between MRI radiomics and survival among ovarian epithelial cancer (OEC) patients.

Method: A total of 286 patients with pathologically proven adnexal tumor were retrospectively included in this study. We evaluated diagnostic performance of the signatures derived from MRI radiomics in differentiating (1) between benign adnexal tumors and malignancies and (2) between type I and type II OEC. Read More

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http://dx.doi.org/10.1007/s00330-019-06124-9DOI Listing
April 2019
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Radiofrequency ablation of liver metastasis: potential impact on immune checkpoint inhibitor therapy.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan.

Percutaneous radiofrequency ablation (RFA), a generally accepted alternative therapy for patients with liver metastases, is a minimally invasive approach with a favorable safety profile and a lower rate of major complications. The use of RFA or combined RFA plus resection can produce total tumor clearance in patients with unresectable liver metastases. However, the relatively high rate of local tumor progression has prevented the widespread use of RFA. Read More

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http://dx.doi.org/10.1007/s00330-019-06189-6DOI Listing
April 2019
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Deep learning-based image restoration algorithm for coronary CT angiography.

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

Department of Diagnostic Radiology, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.

Objectives: The purpose of this study was to compare the image quality of coronary computed tomography angiography (CTA) subjected to deep learning-based image restoration (DLR) method with images subjected to hybrid iterative reconstruction (IR).

Methods: We enrolled 30 patients (22 men, 8 women) who underwent coronary CTA on a 320-slice CT scanner. The images were reconstructed with hybrid IR and with DLR. Read More

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http://link.springer.com/10.1007/s00330-019-06183-y
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http://dx.doi.org/10.1007/s00330-019-06183-yDOI Listing
April 2019
4 Reads

Is liver lesion characterisation by simplified IVIM DWI also feasible at 3.0 T?

Eur Radiol 2019 Apr 8. Epub 2019 Apr 8.

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

Objective: To evaluate simplified intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) for liver lesion characterisation at 3.0 T and to compare it with 1.5 T. Read More

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http://dx.doi.org/10.1007/s00330-019-06192-xDOI Listing

Immediate and delayed hypersensitivity after intra-arterial injection of iodinated contrast media: a prospective study in patients with coronary angiography.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, South Korea.

Objectives: While hypersensitivity reactions (HSR) to intravenously administered iodinated contrast media (ICM) have been well studied, not much is known about HSR to intra-arterially administered ICM.

Methods: A prospective observational study was performed to evaluate coronary angiography (CAG)-induced ICM hypersensitivity in patients who underwent CAG using ICM including ioversol, a low-osmolar non-ionic monomer, and iodixanol, an iso-osmolar non-ionic dimer. The HSR were investigated through in-patient monitoring after CAG and telephone interview after discharge. Read More

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http://dx.doi.org/10.1007/s00330-019-06138-3DOI Listing
April 2019
3 Reads

Deteriorated functional and structural brain networks and normally appearing functional-structural coupling in diabetic kidney disease: a graph theory-based magnetic resonance imaging study.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, China.

Purpose: This study was conducted in order to investigate the topological organization of functional and structural brain networks in diabetic kidney disease (DKD) and its potential clinical relevance.

Methods: Two hundred two subjects (62 DKD patients, 60 diabetes mellitus [DM] patients, and 80 healthy controls) underwent laboratory examination, neuropsychological test, and magnetic resonance imaging (MRI). Large-scale functional and structural brain networks were constructed and graph theoretical network analyses were performed. Read More

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http://dx.doi.org/10.1007/s00330-019-06164-1DOI Listing
April 2019
1 Read
4.014 Impact Factor

Post-imaging pulmonary nodule mathematical prediction models: are they clinically relevant?

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Radiology, University of Iowa, 200 Hawkins Drive cc704 GH, Iowa City, IA, 52242, USA.

Objectives: Post-imaging mathematical prediction models (MPMs) provide guidance for the management of solid pulmonary nodules by providing a lung cancer risk score from demographic and radiologists-indicated imaging characteristics. We hypothesized calibrating the MPM risk score threshold to a local study cohort would result in improved performance over the original recommended MPM thresholds. We compared the pre- and post-calibration performance of four MPM models and determined if improvement in MPM prediction occurs as nodules are imaged longitudinally. Read More

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http://dx.doi.org/10.1007/s00330-019-06168-xDOI Listing
April 2019
4 Reads

Patient preferences for whole-body MRI or conventional staging pathways in lung and colorectal cancer: a discrete choice experiment.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Research Department of Applied Health Research, University College London, 1-19 Torrington Place, London, WC1E 6BT, UK.

Objectives: To determine the importance placed by patients on attributes associated with whole-body MRI (WB-MRI) and standard cancer staging pathways and ascertain drivers of preference.

Methods: Patients recruited to two multi-centre diagnostic accuracy trials comparing WB-MRI with standard staging pathways in lung and colorectal cancer were invited to complete a discrete choice experiment (DCE), choosing between a series of alternate pathways in which 6 attributes (accuracy, time to diagnosis, scan duration, whole-body enclosure, radiation exposure, total scan number) were varied systematically. Data were analysed using a conditional logit regression model and marginal rates of substitution computed. Read More

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http://dx.doi.org/10.1007/s00330-019-06153-4DOI Listing

Application of a deep learning algorithm for detection and visualization of hip fractures on plain pelvic radiographs.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Trauma and Emergency Surgery, Chang Gung Memorial Hospital, Linkou, Chang Gung University, Taoyuan, Taiwan.

Objective: To identify the feasibility of using a deep convolutional neural network (DCNN) for the detection and localization of hip fractures on plain frontal pelvic radiographs (PXRs). Hip fracture is a leading worldwide health problem for the elderly. A missed diagnosis of hip fracture on radiography leads to a dismal prognosis. Read More

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http://dx.doi.org/10.1007/s00330-019-06167-yDOI Listing
April 2019
1 Read

Late gadolinium MRI enhancement of colorectal liver metastases is associated with overall survival among nonsurgical patients.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Rm AB 204, Toronto, ON, M4N 3M5, Canada.

Purpose: To determine if late gadolinium MRI enhancement of colorectal liver metastases (CRCLM) is associated with overall survival among nonsurgical patients.

Materials And Methods: This retrospective study was approved by the institutional research ethics board. Late gadolinium enhancement was measured using target tumour enhancement (TTE) in all nonsurgical patients with CRCLM who received a 10-min delayed phase gadobutrol-enhanced liver MRI between March 1, 2006, and August 31, 2014. Read More

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http://dx.doi.org/10.1007/s00330-019-06177-wDOI Listing
April 2019
2 Reads

The hollow adrenal gland sign: a newly described enhancing pattern of the adrenal gland on dual-phase contrast-enhanced CT for predicting the prognosis of patients with septic shock.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Radiology, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshanerlu Road, Guangzhou, Guangdong, People's Republic of China.

Objective: To investigate the incidence, CT appearance, and implication for prognosis of the hollow adrenal gland sign (HAGS).

Methods: A total of 194 patients with septic shock and 24 patients with hemorrhagic shock (as control group) were retrospectively included in this study and the patients with septic shock were further divided into four subgroups (digestive tract diseases, DTD, n = 49; biliary and pancreatic diseases, BPD, n = 41; postsurgical infection, PI, n = 64; and other diseases, OD, n = 40). All patients underwent a dual-phase contrast-enhanced CT within 1 week after diagnosis. Read More

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http://dx.doi.org/10.1007/s00330-019-06172-1DOI Listing
April 2019
4 Reads

MRI of ankle sprain: the association between joint effusion and structural injury severity in a large cohort of athletes.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Radiology, Quantitative Imaging Center, Boston University School of Medicine, Boston, MA, USA.

Objective: To test the hypothesis if presence and amount of effusion in the tibiotalar and talocalcaneal joints are associated with an increased risk for severe structural injury in ankle sprains.

Methods: A total of 261 athletes sustaining acute ankle sprains were assessed on MRI for the presence and the amount of joint effusion in the tibiotalar and talocalcaneal joints, as well as for ligamentous and osteochondral injury. Specific patterns of injury severity were defined based on lateral collateral ligament, syndesmotic, and talar osteochondral involvement. Read More

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http://dx.doi.org/10.1007/s00330-019-06156-1DOI Listing
April 2019
6 Reads

Iso- or hyperintensity of hepatocellular adenomas on hepatobiliary phase does not always correspond to hepatospecific contrast-agent uptake: importance for tumor subtyping.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Department of Radiology, APHP, HU Henri Mondor, Creteil, Val-de-Marne, France.

Purpose: This study was conducted in order to evaluate if iso- or hyperintensity of HCAs on HBP is systematically related to a high uptake of hepatospecific contrast agent, using a quantitative approach.

Methods: This bicentric retrospective study included all patients with histologically confirmed and subtyped HCA from 2009 to 2017 who underwent MRI with HBP after Gd-BOPTA injection and who showed iso- or hyperintensity on HBP. The signal intensity of tumors on pre- and postcontrast images and the presence of hepatic steatosis were noted. Read More

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http://dx.doi.org/10.1007/s00330-019-06150-7DOI Listing
April 2019
3 Reads

Is dual-phase C-arm CBCT sufficiently accurate for the diagnosis of colorectal cancer liver metastasis during liver intra-arterial treatment?

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

INSERM U970, Paris, France.

Purpose: This study aimed to estimate the accuracy of dual-phase C-arm cone beam computed tomography (CBCT) for the detection of colorectal cancer liver metastases, as compared with multidetector computed tomography (MDCT).

Materials And Methods: Between March 2014 and December 2016, 49 consecutive patients referred for intra-arterial treatment for colorectal cancer liver metastases were enrolled in a single-center observational study. All patients were examined with MDCT and with dual-phase C-arm cone beam computed tomography performed after iodine injection in the proper hepatic artery before intra-arterial treatment. Read More

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http://dx.doi.org/10.1007/s00330-019-06173-0DOI Listing
April 2019
2 Reads

Non-contrast MR lymphography of the lymphatic system of the liver.

Eur Radiol 2019 Apr 1. Epub 2019 Apr 1.

Faculté de Médecine Pierre et Marie Curie and Department of Radiology, Saint-Antoine Hospital, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, 184 Rue du Faubourg Saint-Antoine, 75012, Paris, France.

This review shows the images obtained with non-contrast MR lymphography in different pathologic conditions affecting the liver. Non-contrast MR lymphography is obtained with a free-breathing 3D high spatial resolution fast-recovery fast spin-echo sequence similar to that used for 3D MR cholangiopancreatography. The liver is the largest lymph-producing organ generating approximately half of the body's lymphatic fluid and is the most important part of the lymphatic system from a functional point of view. Read More

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http://dx.doi.org/10.1007/s00330-019-06151-6DOI Listing
April 2019
3 Reads

Automatic classification of ultrasound breast lesions using a deep convolutional neural network mimicking human decision-making.

Eur Radiol 2019 Mar 29. Epub 2019 Mar 29.

Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.

Objectives: To evaluate a deep convolutional neural network (dCNN) for detection, highlighting, and classification of ultrasound (US) breast lesions mimicking human decision-making according to the Breast Imaging Reporting and Data System (BI-RADS).

Methods And Materials: One thousand nineteen breast ultrasound images from 582 patients (age 56.3 ± 11. Read More

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http://dx.doi.org/10.1007/s00330-019-06118-7DOI Listing

Ultralow-dose CT with knowledge-based iterative model reconstruction (IMR) in evaluation of pulmonary tuberculosis: comparison of radiation dose and image quality.

Eur Radiol 2019 Mar 29. Epub 2019 Mar 29.

Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China.

Objectives: To evaluate the image quality of ultralow-dose computed tomography (ULDCT) reconstructed with knowledge-based iterative model reconstruction (IMR) in patients with pulmonary tuberculosis (TB).

Methods: This IRB-approved prospective study enrolled 59 consecutive patients (mean age, 43.9 ± 16. Read More

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http://dx.doi.org/10.1007/s00330-019-06129-4DOI Listing
March 2019
1 Read

Prognostic factors of interstitial lung disease progression at sequential HRCT in anti-synthetase syndrome.

Eur Radiol 2019 Mar 27. Epub 2019 Mar 27.

Department of Pulmonology, China-Japan Friendship Hospital, Beijing, 100029, China.

Objectives: Interstitial lung disease (ILD) is a common extra-muscular manifestation of anti-synthetase syndrome (ASS) and the main cause of morbidity and mortality in patients with ASS. Data on prognostic factors in these patients are lacking.

Methods: A total of 69 patients with ILD and positivity for at least one of the following autoantibodies were included: anti-Jo-1, anti-PL7, anti-PL12, and anti-EJ. Read More

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http://dx.doi.org/10.1007/s00330-019-06152-5DOI Listing
March 2019
1 Read

Effect of perithyroidal lignocaine infusion (PLI) to pain experienced during high-intensity focused ultrasound (HIFU) ablation of benign thyroid nodules.

Eur Radiol 2019 Mar 27. Epub 2019 Mar 27.

Department of Radiology, The University of Hong Kong, Hong Kong, SAR, China.

Objective: To assess whether perithyroidal lignocaine infusion (PLI) could provide additional analgesia in high-intensity focused ultrasound (HIFU) treatment of benign thyroid nodules for patients already receiving their usual intravenous doses of Pethidine and Diazemuls.

Methods: Two hundred and five patients who underwent HIFU ablation for a benign thyroid nodule were analyzed. Among them, 104 (50. Read More

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http://dx.doi.org/10.1007/s00330-019-06160-5DOI Listing
March 2019
1 Read

Ferumoxytol magnetic resonance angiography: a dose-finding study in patients with chronic kidney disease.

Eur Radiol 2019 Mar 27. Epub 2019 Mar 27.

Department of Radiology, Queen Elizabeth University Hospital, Glasgow, UK.

Objectives: Ferumoxytol is an alternative to gadolinium-based compounds as a vascular contrast agent for magnetic resonance angiography (MRA), particularly for patients with chronic kidney disease (CKD). However, dose-related efficacy data are lacking. We aimed to determine the optimal (minimum effective) dose of ferumoxytol for MRA in patients with CKD. Read More

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http://dx.doi.org/10.1007/s00330-019-06137-4DOI Listing
March 2019
1 Read

Differentiation of two subtypes of intrahepatic cholangiocarcinoma: imaging approach.

Authors:
Kengo Yoshimitsu

Eur Radiol 2019 Mar 26. Epub 2019 Mar 26.

Department of Radiology, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan.

Key Points: • Mass-forming intrahepatic cholangiocarcinoma can be divided into two subgroups, namley, perihilar and peripheral types. • These two significantly differ in clinico-biological behaviors, and in patients' prognosis as well. • This differentiation may be achieved solely by contrast-enhanced MR imaging findings. Read More

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http://dx.doi.org/10.1007/s00330-019-06135-6DOI Listing
March 2019
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Comparison of 3D endoanal ultrasound and external phased array magnetic resonance imaging in the diagnosis of obstetric anal sphincter injuries.

Eur Radiol 2019 Mar 26. Epub 2019 Mar 26.

Department of Surgery, Seinäjoki Central Hospital, Seinäjoki, Finland.

Objectives: The gold standard of postpartum anal sphincter imaging has been the 3D endoanal ultrasound (EAUS). Development of magnetic resonance imaging (MRI) has allowed anal sphincter evaluation without the use of endoanal coils. The aim of this study is to compare these two modalities in diagnosing residual sphincter lesions post obstetric anal sphincter injury (OASI). Read More

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http://dx.doi.org/10.1007/s00330-019-06125-8DOI Listing