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European Journal of Radiology

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https://www.readbyqxmd.com/read/28132716/-18-f-fdg-pet-mri-in-lymphoma-patients
#1
Eva Ferdová, Jiří Ferda, Jan Baxa
The introduction of hybrid PET/MRI imaging using integrated systems into clinical practice has opened up the possibility of reducing the radiation dose from hybrid imaging by eliminating the contribution from computed tomography. Studies comparing the possibilities of PET/CT and PET/MRI imaging demonstrated it is possible to use the advantages of the high contrast resolution of magnetic resonance for soft tissue and bone marrow along with PET records in a quality comparable to PET/CT imaging. The significant feature for PET imaging in Hodgkińs lymphoma is that it is a tissue with high levels of radiopharmaceutical accumulation, which decreases proportionally after successful therapeutic effect, the effect of therapy is assessed using Deauville score system on interim examinations...
January 23, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28131593/pet-mri-in-children
#2
Sergios Gatidis, Benjamin Bender, Matthias Reimold, Jürgen F Schäfer
During the past decade, combined PET/MRI has been translated from a basic technical concept to a clinical research tool and a clinically applied hybrid imaging modality. Numerous clinical and scientific applications have been proposed for this novel hybrid modality including oncologic, neurologic and cardiovascular imaging. Among these, PET/MRI in children has emerged as a key application, not only due to possible diagnostic advantages but also because of reduced radiation exposure compared to alternative techniques...
January 21, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28034566/erratum-to-biparametric-3t-magnetic-resonance-imaging-for-prostatic-cancer-detection-in-a-biopsy-na%C3%A3-ve-patient-population-a-further-improvement-of-pi-rads-v2-eur-j-radiol-85-12-2016-2269-2274
#3
Arnaldo Stanzione, Massimo Imbriaco, Sirio Cocozza, Ferdinando Fusco, Giovanni Rusconi, Carmela Nappi, Vincenzo Mirone, Francesco Mangiapia, Arturo Brunetti, Alfonso Ragozzino, Nicola Longo
No abstract text is available yet for this article.
December 26, 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/28034569/evaluation-of-hepatocellular-carcinoma-tumor-vascularity-using-contrast-enhanced-ultrasonography-as-a-predictor-for-local-recurrence-following-radiofrequency-ablation
#4
Tomohiro Ishii, Kazushi Numata, Yoshiteru Hao, Nobutaka Doba, Koji Hara, Masaaki Kondo, Katsuaki Tanaka, Shin Maeda
PURPOSE: The purpose of this study was to evaluate whether the hypervascularity of hepatocellular carcinomas (HCCs) on contrast-enhanced ultrasonography (CEUS) prior to radiofrequency ablation (RFA) is a significant risk factor for local recurrence after RFA. MATERIALS AND METHODS: Institutional review board approval and informed consent were obtained. Overall, 208 patients (mean age, 71.7 years; range, 50-87 years; 137 men, 71 women) with 282 HCCs treated with RFA were analyzed retrospectively...
December 21, 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/28034568/efficacy-and-safety-of-balloon-pulmonary-angioplasty-for-chronic-thromboembolic-pulmonary-hypertension-guided-by-cone-beam-computed-tomography-and-electrocardiogram-gated-area-detector-computed-tomography
#5
Takeshi Ogo, Tetsuya Fukuda, Akihiro Tsuji, Shigefumi Fukui, Jin Ueda, Yoshihiro Sanda, Yoshiaki Morita, Ryotaro Asano, Nao Konagai, Satoshi Yasuda
BACKGROUND: Chronic thromboembolic pulmonary hypertension (CTEPH) is a disease characterized by chronic obstructive thrombus and pulmonary hypertension. Balloon pulmonary angioplasty (BPA), an emerging alternative catheter-based treatment for inoperable patients with CTEPH, has not yet been standardised, especially for lesion assessment in distal pulmonary arteries. Recent advancement in computed tomography enables distal CTEPH lesions to be visualized. METHODS: We retrospectively studied 80 consecutive patients with inoperable CTEPH who received BPA guided by cone-beam computed tomography (CT) (CBCT) or electrocardiogram (ECG)-gated area detector CT (ADCT) for target lesion assessment...
December 21, 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/28089245/diagnostic-accuracy-of-postmortem-imaging-vs-autopsy-a-systematic-review
#6
REVIEW
Anders Eriksson, Torfinn Gustafsson, Malin Höistad, Monica Hultcrantz, Stella Jacobson, Ingegerd Mejare, Anders Persson
Background Postmortem imaging has been used for more than a century as a complement to medico-legal autopsies. The technique has also emerged as a possible alternative to compensate for the continuous decline in the number of clinical autopsies. To evaluate the diagnostic accuracy of postmortem imaging for various types of findings, we performed this systematic literature review. Data sources The literature search was performed in the databases PubMed, Embase and Cochrane Library through January 7, 2015. Relevant publications were assessed for risk of bias using the QUADAS tool and were classified as low, moderate or high risk of bias according to pre-defined criteria...
December 7, 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/28188060/mesenteric-findings-of-ct-enterography-are-well-correlated-with-the-endoscopic-severity-of-crohn-s-disease
#7
Takehiro Sakurai, Tatsuro Katsuno, Keiko Saito, Sayuri Yoshihama, Tomoo Nakagawa, Hirotaka Koseki, Takashi Taida, Hideaki Ishigami, Ken-Ichiro Okimoto, Daisuke Maruoka, Tomoaki Matsumura, Makoto Arai, Osamu Yokosuka
BACKGROUND: Maintenance of mucosal healing is a primary goal when treating Crohn's disease (CD). Endoscopy is the most precise method for the assessment of mucosal healing, but is considered overly invasive for patients with CD. In contrast, CT enterography (CTE) is less invasive, but little is known about the correlation between mucosal status and CTE parameters. METHODS: We recruited CD patients who underwent CTE and double balloon endoscopy (DBE) on the same day at our hospital between 2012 and 2014...
November 27, 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/28189216/multirater-agreement-for-grading-the-femoral-and-tibial-cartilage-surface-lesions-at-ct-arthrography-and-analysis-of-causes-of-disagreement
#8
Patrick Omoumi, Nicolas Michoux, Ahmed Larbi, Laure Lacoste, Frédéric E Lecouvet, Vasiliki Perlepe, Bruno C Vande Berg
OBJECTIVE: To assess the multirater agreement of the modified Outerbridge system for the grading of predefined areas of femorotibial cartilage at CT arthrography with multiple readers, with varying experience. DESIGN: Five readers with varying experience (two junior radiologists, three musculoskeletal radiologists including two experts in cartilage imaging) separately analyzed 962 cartilage sectors from pre-divided knee CT arthrograms with femorotibial osteoarthritis (Kellgren/Lawrence=3)...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189215/orbital-benign-and-malignant-lymphoproliferative-disorders-differentiation-using-semi-quantitative-and-quantitative-analysis-of-dynamic-contrast-enhanced-magnetic-resonance-imaging
#9
Hao Hu, Xiao-Quan Xu, Hu Liu, Xun-Ning Hong, Hai-Bin Shi, Fei-Yun Wu
OBJECTIVES: To assess the value of dynamic contrast-enhanced MR imaging (DCE-MRI) in differentiating benign from malignant orbital lymphoproliferative disorders (OLPDs). METHODS: Thirty-nine patients with orbital lymphoproliferative disorders (21 malignant and 18 benign) underwent DCE-MRI scan for pre-treatment evaluation from March 2013 to December 2015. Both semi-quantitative (TTP, AUC, Slopemax) and quantitative (K(trans), kep, ve) parameters were calculated, and compared between two groups...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189214/performance-of-chest-ultrasound-in-pediatric-pneumonia
#10
Anne-Sophie Claes, Philippe Clapuyt, Renaud Menten, Nicolas Michoux, Dana Dumitriu
OBJECTIVE: The objective of this study was to evaluate the performance of ultrasound in detecting lung consolidation in children suspected of pneumonia, in comparison to the current gold standard, chest X-rays. MATERIALS AND METHODS: From September 2013 to June 2014, a monocentric prospective study was performed on all children between 0 and 16 years-old, referred for chest X-ray for suspected pneumonia. Each child was examined by chest ultrasound by an examiner blinded to the chest X-ray...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189213/computed-tomography-versus-digital-subtraction-angiography-for-the-diagnosis-of-obscure-gastrointestinal-bleeding
#11
Moritz Wildgruber, Christian E Wrede, Niels Zorger, René Müller-Wille, Okka W Hamer, Florian Zeman, Christian Stroszczynski, Peter Heiss
PURPOSE: The diagnostic yield of computed tomography angiography (CTA) compared to digital subtraction angiography (DSA) for major obscure gastrointestinal bleeding (OGIB) is not known. Aim of the study was to prospectively evaluate the diagnostic yield of CTA versus DSA for the diagnosis of major OGIB. MATERIAL AND METHODS: The institutional review board approved the study and informed consent was obtained from each patient. Patients with major OGIB were prospectively enrolled to undergo both CTA and DSA...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189212/dynamic-contrast-enhanced-magnetic-resonance-imaging-can-play-a-role-in-predicting-flare-in-juvenile-idiopathic-arthritis
#12
Charlotte M Nusman, Robert Hemke, Cristina Lavini, Dieneke Schonenberg-Meinema, Marion A J van Rossum, Koert M Dolman, J Merlijn van den Berg, Mario Maas, Taco W Kuijpers
PURPOSE: The study was performed to determine whether conventional and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) parameters of a previously affected target joint in patients with clinically inactive juvenile idiopathic arthritis (JIA) have prognostic meaning for a flare of joint inflammation during follow-up. MATERIAL AND METHODS: Thirty-two JIA patients with clinically inactive disease at the time of MRI of the knee were prospectively included...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189211/qualitative-and-quantitative-analysis-of-diffusion-weighted-imaging-of-gestational-trophoblastic-disease-can-it-predict-progression-of-molar-pregnancy-to-persistent-form-of-disease
#13
Sepideh Sefidbakht, Fatemeh Hosseini, Bijan Bijan, Bahareh Hamedi, Tayyebeh Azizi
PURPOSE: To describe the diffusion-weighted imaging (DWI) appearance of gestational trophoblastic disease (GTD) and to determine its apparent diffusion coefficient (ADC) values. To evaluate the feasibility of DWI to predict progression of hydatidiform mole (HM) to persistent disease. METHODS: During a period of 6 months, women with preliminary diagnosis of GTD, based on ultrasound and ßhCG levels, underwent 1.5T MRI (T2 high-resolution and DWI; b values 50, 400, 800; sagittal and perpendicular to the endometrium; and T1, T2 Turbo Spin Echo [TSE] axial images)...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189210/quantifying-metal-artefact-reduction-using-virtual-monochromatic-dual-layer-detector-spectral-ct-imaging-in-unilateral-and-bilateral-total-hip-prostheses
#14
R H H Wellenberg, M F Boomsma, J A C van Osch, A Vlassenbroek, J Milles, M A Edens, G J Streekstra, C H Slump, M Maas
PURPOSE: To quantify the impact of prosthesis material and design on the reduction of metal artefacts in total hip arthroplasties using virtual monochromatic dual-layer detector Spectral CT imaging. METHODS: The water-filled total hip arthroplasty phantom was scanned on a novel 128-slice Philips IQon dual-layer detector Spectral CT scanner at 120-kVp and 140-kVp at a standard computed tomography dose index of 20.0mGy. Several unilateral and bilateral hip prostheses consisting of different metal alloys were inserted and combined which were surrounded by 18 hydroxyapatite calcium carbonate pellets representing bone...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189209/early-clinical-esophageal-adenocarcinoma-ct1-utility-of-ct-in-regional-nodal-metastasis-detection-and-can-the-clinical-accuracy-be-improved
#15
Sonia L Betancourt Cuellar, Bradley Sabloff, Brett W Carter, Marcelo F Benveniste, Arlene M Correa, Dipen M Maru, Jaffer A Ajani, Jeremy J Erasmus, Wayne L Hofstetter
INTRODUCTION: Treatment of early esophageal cancer depends on the extent of the primary tumor and presence of regional lymph node metastasis.(RNM). Short axis diameter>10mm is typically used to detect RNM. However, clinical determination of RNM is inaccurate and can result in inappropriate treatment. Purpose of this study is to evaluate the accuracy of a single linear measurement (short axis>10mm) of regional nodes on CT in predicting nodal metastasis, in patients with early esophageal cancer and whether using a mean diameter value (short axis+long axis/2) as well as nodal shape improves cN designation...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189208/multiparametric-evaluation-by-simultaneous-pet-mri-examination-in-patients-with-histologically-proven-laryngeal-cancer
#16
Carlo Cavaliere, Valeria Romeo, Marco Aiello, Massimo Mesolella, Brigida Iorio, Luigi Barbuto, Elena Cantone, Emanuele Nicolai, Mario Covello
OBJECTIVES: To evaluate the relationship between metabolic 18Fluoro-Deoxyglucose-Positron Emission Tomography (18FDG/PET) and morpho-functional parameters derived by Magnetic Resonance Imaging (MRI) in patients with histologically proven laryngeal cancer. To assess the clinical impact of PET/MRI examination on patient's staging and treatment planning. METHODS: 16 patients with histologically proven laryngeal cancer were enrolled and underwent whole body PET/CT followed by a dedicated PET/MRI of the head/neck region...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189207/compression-force-and-radiation-dose-in-the-norwegian-breast-cancer-screening-program
#17
Gunvor G Waade, Audun Sanderud, Solveig Hofvind
PURPOSE: Compression force is used in mammography to reduce breast thickness and by that decrease radiation dose and improve image quality. There are no evidence-based recommendations regarding the optimal compression force. We analyzed compression force and radiation dose between screening centers in the Norwegian Breast Cancer Screening Program (NBCSP), as a first step towards establishing evidence-based recommendations for compression force. MATERIALS AND METHODS: The study included information from 17 951 randomly selected screening examinations among women screened with equipment from four different venors at fourteen breast centers in the NBCSP, January-March 2014...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189206/development-and-validation-of-a-novel-predictive-scoring-model-for-microvascular-invasion-in-patients-with-hepatocellular-carcinoma
#18
Hui Zhao, Ye Hua, Tu Dai, Jian He, Min Tang, Xu Fu, Liang Mao, Huihan Jin, Yudong Qiu
PURPOSE: Microvascular invasion (MVI) in patients with hepatocellular carcinoma (HCC) cannot be accurately predicted preoperatively. This study aimed to establish a predictive scoring model of MVI in solitary HCC patients without macroscopic vascular invasion. METHODS: A total of 309 consecutive HCC patients who underwent curative hepatectomy were divided into the derivation (n=206) and validation cohort (n=103). A predictive scoring model of MVI was established according to the valuable predictors in the derivation cohort based on multivariate logistic regression analysis...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189205/flat-detector-ct-and-its-applications-in-the-endovascular-treatment-of-wide-necked-intracranial-aneurysms-a-literature-review
#19
REVIEW
Łukasz Zwarzany, Wojciech Poncyljusz, Thomas H Burke
Flat detector CT (FDCT) provides cross sectional imaging within an angiographic suite and is increasingly gaining popularity in various areas of interventional radiology, as an alternative imaging modality. Its relatively high spatial resolution improves visualization of intraluminal devices such as intracranial stents or flow-diverters. Device deployment and positioning, in relation to the parent vessel and surrounding structures, are easily assessible with FDCT. Furthermore, with contrast agent administration, it expands the diagnostic capabilities of this new imaging tool...
March 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28189204/assessment-of-coronary-calcification-using-calibrated-mass-score-with-two-different-multidetector-computed-tomography-scanners-in-the-copenhagen-general-population-study
#20
Andreas Fuchs, Jaap M Groen, Ben A Arnold, Sasho Nikolovski, Andreas D Knudsen, J Tobias Kühl, Børge G Nordestgaard, Marcel J W Greuter, Klaus F Kofoed
OBJECTIVE: Population studies have shown coronary calcium score to improve risk stratification in subjects suspected for cardiovascular disease. The aim of this work was to assess the validity of multidetector computed tomography (MDCT) for measurement of calibrated mass scores (MS) in a phantom study, and to investigate inter-scanner variability for MS and Agaston score (AS) recorded in a population study on two different high-end MDCT scanners. MATERIALS AND METHODS: A calcium phantom was scanned by a first (A) and second (B) generation 320-MDCT...
March 2017: European Journal of Radiology
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