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European Journal of Radiology

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https://www.readbyqxmd.com/read/28712703/role-of-semi-quantitative-dynamic-contrast-enhanced-mr-imaging-in-characterization-and-grading-of-prostate-cancer
#1
See Hyung Kim, Mi Sun Choi, Mi Jung Kim, Young Hwan Kim, Seung Hyun Cho
OBJECTIVE: The study retrospectively assessed the diagnostic value of semi-quantitative dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) in characterization and grading of prostate cancer, with correlation to histopathological analysis. MATERIALS AND METHODS: 161 consecutive patients with prostate cancer underwent DCE MRI. 430 lesions, including 200 cancers with Gleason grade (GG) of 6 (n=25), 7 (n=112) and 8 or higher (n=63); 80 benign hyperplasia; and 150 healthy tissues were assessed using a histology-MRI correlation...
July 6, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712693/diagnostic-performance-of-contrast-enhanced-ct-scan-in-sinusoidal-obstruction-syndrome-induced-by-chemotherapy-of-colorectal-liver-metastases-radio-pathological-correlation
#2
Sophie Cayet, Jeremy Pasco, Fanny Dujardin, Marie Besson, Isabelle Orain, Anne De Muret, Elodie Miquelestorena-Standley, Julien Thiery, Thibaud Genet, Anne-Gwenn Le Bayon
PURPOSE: Sinusoidal obstruction syndrome (SOS) is a likely side effect of colorectal liver metastases (CRLM) chemotherapy. This study aimed to assess computed tomography scan (CT-scan) performance for SOS diagnosis for patients receiving neoadjuvant chemotherapy (NC) prior to CRLM surgery, comparing obtained results with pathological gold standard. METHODS: Preoperative CT-scans of 67 patients who had received a NC prior to liver resection for CRLM from 2011 to 2016 were retrospectively analysed...
July 3, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28709718/gadoxetic-acid-enhanced-high-temporal-resolution-hepatic-arterial-phase-imaging-with-view-sharing-technique-impact-on-the-li-rads-category
#3
Satoshi Goshima, Yoshifumi Noda, Kimihiro Kajita, Nobuyuki Kawai, Hiromi Koyasu, Hiroshi Kawada, Masayuki Matsuo, Kyongtae T Bae
PURPOSE: To evaluate the value of view-sharing multi-hepatic arterial-phase (mHAP) imaging for diagnosis of hypervascular hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Forty-seven consecutive patients with HCC underwent gadoxetic acid-enhanced magnetic resonance (MR) imaging before angiographic and lipiodol CT. Hepatic arterial-phase images were obtained at 5 consecutive phases with shared central k-space of 25%, followed by portal venous, late (2 and 3min), and hepatobiliary phase imaging...
July 3, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712701/impact-of-advanced-modeled-iterative-reconstruction-on-interreader-agreement-in-coronary-artery-measurements
#4
Tobias Gassenmaier, Isabel Distelmaier, Andreas M Weng, Thorsten A Bley, Thorsten Klink
OBJECTIVES: To evaluate the influence of advanced modeled iterative reconstruction (ADMIRE) on coronary artery computed tomography angiography (cCTA) measurements in comparison to filtered back projection (FBP). MATERIAL AND METHODS: Phantom scans and coronary CTA studies of 27 patients were acquired with a third generation dual-source CT scanner. Images were reconstructed using FBP and ADMIRE. Phantom measurements were used as reference standard. In patient studies, representative axial slices of each coronary artery segment without (n=308) and with coronary plaques (n=40) were assessed in identical positions for comparison of FBP and ADMIRE reconstructions...
July 1, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712698/preoperative-breast-mr-imaging-in-patients-with-primary-breast-cancer-has-the-potential-to-decrease-the-rate-of-repeated-surgeries
#5
H Preibsch, G Blumenstock, E Oberlechner, S Y Brucker, M Hahn, A Staebler, B Wiesinger, C D Claussen, K Nikolaou, K C Siegmann-Luz
PURPOSE: The impact of preoperative MRI on re-excisions and mastectomy rate is discussed controversially in the literature. Aim of this study was to evaluate the effect of preoperative breast MRI on the surgical procedure and rate of repeated surgeries. MATERIAL AND METHODS: A total of 991 consecutive patients in the years 2009 and 2010 with 1036 primary breast cancers were retrospectively analyzed. Sixty percent (599 patients with 626 cancers) received preoperative breast MRI...
July 1, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712696/the-value-of-ultrasound-in-the-preoperative-diagnosis-of-muscle-herniation-a-comparison-with-magnetic-resonance-imaging
#6
XiuPing Zhou, WeiCong Zhan, Wei Chen, DaoZhu Wu, KaiNeng Wei, Chunbi Wu, Liang Wang
OBJECTIVES: To evaluate the clinic value of ultrasound (US) in the diagnosis of muscle herniation. METHODS: This retrospective study was performed on 26 patients with muscle herniation confirmed by surgery. All patients were examined by US and magnetic resonance imaging (MRI) preoperatively. The final histopathologic findings were retrospectively compared with the results of US and MRI. RESULTS: The accuracy of ultrasonography and MRI were 92...
July 1, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28716454/a-randomised-trial-of-screening-with-digital-breast-tomosynthesis-plus-conventional-digital-2d-mammography-versus-2d-mammography-alone-in-younger-higher-risk-women
#7
Anthony J Maxwell, Michael Michell, Yit Y Lim, Susan M Astley, Mary Wilson, Emma Hurley, D Gareth Evans, Anthony Howell, Asif Iqbal, John Kotre, Stephen Duffy, Julie Morris
INTRODUCTION: Digital breast tomosynthesis (DBT) has been shown to increase invasive cancer detection rates at screening compared to full field digital (2D) mammography alone, and some studies have reported a reduction in the screening recall rate. No prospective randomised studies of DBT have previously been published. This study compares recall rates with 2D mammography with and without concurrent DBT in women in their forties with a family history of breast cancer undergoing incident screening...
June 30, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712699/ct-scout-based-semi-automated-vertebral-morphometry-after-digital-image-enhancement
#8
Wojciech M Glinkowski, Jerzy Narloch
INTRODUCTION: Radiographic diagnosis of osteoporotic vertebral fracture is necessary to reduce its substantial associated morbidity. Computed tomography (CT) scout has recently been demonstrated as a reliable technique for vertebral fracture diagnosis. Software assistance may help to overcome some limitations of that diagnostics. We aimed to evaluate whether digital image enhancement improved the capacity of one of the existing software to detect fractures semi-automatically. METHODS: CT scanograms of patients suffering from osteoporosis, with or without vertebral fractures were analyzed...
June 29, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712700/radiomic-analysis-of-dce-mri-for-prediction-of-response-to-neoadjuvant-chemotherapy-in-breast-cancer-patients
#9
Ming Fan, Guolin Wu, Hu Cheng, Juan Zhang, Guoliang Shao, Lihua Li
OBJECTIVES: To enhance the accurate prediction of the response to neoadjuvant chemotherapy (NAC) in breast cancer patients by using a quantitative analysis of dynamic enhancement magnetic resonance imaging (DCE-MRI). MATERIALS AND METHODS: A dataset of 57 cancer patients with breast DCE-MR images acquired before NAC was used. Among them, 47 patients were Responders, and 10 patients were non-Responders based on the RECIST criteria. The breast regions were segmented on the MR images, and a total of 158 radiomic features were computed to represent the morphologic, dynamic, and the texture of the tumors as well as the background parenchymal features...
June 28, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712694/imaging-pearls-of-pediatric-beh%C3%A3-et-s-disease
#10
REVIEW
Osman Melih Topcuoglu, Elif Dilara Topcuoglu, Cetin Murat Altay, Sinan Genc
OBJECTIVE: To emphasize the diverse diagnostic imaging findings of pediatric Behçet's disease and to define the fundamental imaging clues for pulmonary, vascular, gastrointestinal and central nervous system involvements of Behçet's disease in pediatric age group. We also aim to list the major imaging differences of Behçet's disease in childhood and adulthood. CONCLUSION: The diagnosis of pediatric Behçet's disease is challenging. Imaging can narrow the differential diagnosis by using some substantial clues and prevent diagnostic delays...
June 28, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712702/clinical-usefulness-of-f-18-fdg-pet-in-lymphoepithelioma-like-gastric-carcinoma
#11
Soyeon Park, Dakeun Lee, Kee Myung Lee, Sang-Uk Han, Jei Hee Lee, Su Jin Lee, Young-Sil An, Joon-Kee Yoon
PURPOSE: Lymphoepithelioma-like carcinoma (LELC) is a rare type of gastric cancer. We evaluated the clinical usefulness of F-18 FDG positron emission tomography/computed tomography (PET/CT) in LELC of stomach. MATERIALS AND METHODS: A total of 28 patients (mean age=59years) who underwent preoperative F-18 FDG PET/CT were enrolled retrospectively. Nine patients underwent follow-up F-18 FDG PET/CT. Pathologic information was obtained through gastrectomy and the association with Epstein-Barr virus (EBV) was investigated in 26 patients...
June 27, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712697/hepatic-steatosis-in-participants-in-a-program-of-low-dose-ct-screening-for-lung-cancer
#12
Xiangmeng Chen, Kunwei Li, Rowena Yip, Ponni Perumalswami, Andrea D Branch, Sara Lewis, David Del Bello, Betsy J Becker, David F Yankelevitz, Claudia I Henschke
OBJECTIVE: Determine the frequency of moderate-to-severe hepatic steatosis (HS) in asymptomatic participants in a low-dose CT (LDCT) screening program for lung cancer, to identify risk factors, and develop recommendations. METHODS: Baseline LDCT scans of the chest of 170 participants in an IRB-approved study between August 2011 and April 2016 were reviewed. Demographic variables, comorbidities, and liver function tests were documented. Hepatic and splenic attenuation values hounsfield unit (HU) were measured...
June 27, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712695/endoleaks-after-endovascular-aortic-aneurysm-repair-improved-detection-with-noise-optimized-virtual-monoenergetic-dual-energy-ct
#13
Simon S Martin, Julian L Wichmann, Hendrik Weyer, Jan-Erik Scholtz, Doris Leithner, Adam Spandorfer, Boris Bodelle, Volkmar Jacobi, Thomas J Vogl, Moritz H Albrecht
PURPOSE: To assess image quality and diagnostic performance of a noise-optimized algorithm to reconstruct virtual monoenergetic images (VMI+) for the detection of endoleaks after endovascular abdominal aortic aneurysm repair (EVAR) using dual-energy CT angiography (DE-CTA). MATERIALS AND METHODS: Seventy-five patients (42 men; 66.2±11.7years) underwent DE-CTA following EVAR. Arterial phase images were acquired in dual-energy mode for the reconstruction of standard linearly-blended M_0...
June 27, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712692/volumetric-parameters-of-2-deoxy-2-18f-fluoro-d-glucose-positron-emission-tomography-computed-tomography-can-predict-histopathologic-treatment-response-after-neoadjuvant-chemoradiotherapy-in-pancreatic-adenocarcinoma
#14
Makoto Sakane, Mitsuaki Tatsumi, Masatoshi Hori, Hiromitsu Onishi, Takahiro Tsuboyama, Atsushi Nakamoto, Takashi Ota, Hidetoshi Eguchi, Kenichi Wakasa, Jun Hatazawa, Noriyuki Tomiyama
PURPOSE: The purpose of this study was to investigate the clinical potential of 2-deoxy-2-[18F]fluoro-d-glucose positron emission tomography/computed tomography (FDG PET/CT) to evaluate histopathologic effects of preoperative chemoradiotherapy (CRT) in pancreatic adenocarcinoma, with particular focus on volumetric PET/CT parameters. MATERIAL AND METHODS: This study included 25 patients with pancreatic adenocarcinoma who underwent radical surgery after gemcitabine- and S-1-based preoperative-CRT...
June 23, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28669428/preoperative-evaluation-of-anomalous-pulmonary-venous-connection-using-dual-source-computed-tomography-comparison-with-echocardiography
#15
Li Jiang, Lin-Jun Xie, Zhi-Gang Yang, Ke Shi, Hua-Yan Xu, Rui Li, Kai-Yue Diao, Ying-Kun Guo
PURPOSE: To evaluate the image features and diagnostic agreement for anomalous pulmonary venous connection (APVC) by dual-source computed tomography (DSCT) before surgery when compared with trans-thoracic echocardiography (TTE). MATERIALS AND METHODS: A total of one hundred and twenty-three patients were enrolled in this study. The associated malformation was analyzed between 39 total anomalous pulmonary venous connections (TAPVC) and 84 partial anomalous pulmonary venous connections (PAPVC)...
June 21, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28711339/imaging-department-organization-in-a-stroke-center-and-workflow-processes-in-acute-stroke
#16
REVIEW
Zarina Abdul Assis, Bijoy K Menon, Mayank Goyal
The imaging department is an integral part of the stroke management task force and plays a critical role. Accurate and timely interpretation of images obtained in the emergency department and involvement in decision-making has contributed immensely in stroke care. In fact, the treatment paradigm has changed considerably after the recent positive endovascular clinical trials; and so is the hospital workflow and treatment site. As a result, the imaging department has become the site of maximum activity during an acute stroke protocol...
June 20, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28662984/mr-enterography-in-crohn-s-disease-complicated-with-enteroenteric-fistula
#17
Ayşe Erden, Sena Ünal, Habip Eser Akkaya, Mehmet Onay, Murat Törüner, Zeynep Bıyıklı Gençtürk, Aysun Çalışkan Kartal
OBJECTIVE: In this retrospective study, we aimed to evaluate MR enterography (MRE) findings, MR index of activity (MaRIA) and laboratory markers in Crohn patients with enteroenteric fistula. METHODS: Institution's electronic medical records (laboratory, pathology, ileocolonoscopy results and discharge summary) were reviewed and MR images retrieved from the PACS were reanalyzed in Crohn patients assessed at Gastroenterology Clinic of our university between July 2011 and July 2016...
June 20, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28652053/mr-imaging-in-hyperacute-ischemic-stroke
#18
Carla Vert, Carmen Parra Fariñas, Àlex Rovira
Brain and vascular imaging are required components of the emergency assessment of patients with suspected stroke. Either CT or MRI may be used as the initial imaging test. MRI is more sensitive to the presence of acute and chronic ischemic lesions, and chronic microbleeds, but CT remains the most practical and used initial brain imaging test. Although, a non-enhanced CT or T2* MRI sequence showing no haemorrhage is sufficient for deciding intravenous treatment eligibility within the first 4.5h after stroke onset, a non-invasive intracranial vascular study is strongly recommended during the initial imaging evaluation of the acute stroke patient, particularly if mechanical thrombectomy is contemplated...
June 19, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28655432/diagnostic-accuracy-of-different-magnetic-resonance-imaging-sequences-for-detecting-local-tumor-progression-after-radiofrequency-ablation-of-hepatic-malignancies
#19
Jakob Weiss, Hansjoerg Rempp, Stephan Clasen, Mike Notohamiprodjo, David-Emanuel Keßler, Philippe L Pereira, Gunnar Blumenstock, Konstantin Nikolaou, Rüdiger Hoffmann
OBJECTIVE: To evaluate the diagnostic accuracy of the individual sequences of a clinical routine liver MRI protocol for the detection of local tumour progression after radiofrequency (RF) ablation of hepatic malignancies. MATERIAL AND METHODS: A cohort of 93 patients treated for 140 primary and secondary hepatic malignancies with RF ablation was assembled for this retrospective study. The cohort contained 31 cases of local tumour progression, which occurred 8.3±6...
June 17, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28655433/role-of-chemical-shift-and-dixon-based-techniques-in-musculoskeletal-mr-imaging
#20
REVIEW
Parham Pezeshk, Ali Alian, Avneesh Chhabra
Fat suppression technique is a valuable resource in musculoskeletal magnetic resonance (MR) imaging that is helpful in the diagnosis and differentiation of various pathologies. Multiple different techniques are available for fat suppression, including frequency selective pulse sequence, inversion recovery, hybrid technique, chemical shift imaging (CSI) and the related Dixon based approach. The utility of CSI and Dixon approach is not well recognized in the domain of musculoskeletal MR imaging. The aim of this article is to review the various options for fat suppression and present focused discussion of the role of CSI and Dixon techniques for musculoskeletal MR imaging...
June 16, 2017: European Journal of Radiology
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