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European Journal of Radiology Open

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https://read.qxmd.com/read/30775414/cardiovascular-magnetic-resonance-t2-mapping-for-structural-alterations-in-hypertrophic-cardiomyopathy
#1
Mareike Gastl, Alexander Gotschy, Jochen von Spiczak, Malgorzata Polacin, Florian Bönner, Christiane Gruner, Malte Kelm, Frank Ruschitzka, Hatem Alkadhi, Sebastian Kozerke, Robert Manka
Purpose: Hypertrophic cardiomyopathy (HCM) is characterized by a heterogeneous morphology and variable prognosis. A mismatch between left ventricular mass (LVM) and microvascular circulation with corresponding relative ischemia has been implicated to cause myocardial replacement fibrosis that deteriorates prognosis. Besides parametric T1 mapping, Cardiovascular Magnetic Resonance (CMR) T2* mapping is able to identify ischemia as well as fibrosis in cardiac and extracardiac diseases. Therefore, we aimed to investigate the value of T2* mapping to characterize structural alterations in patients with HCM...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30740474/localized-malignant-pleural-mesothelioma-mimicking-an-anterior-mediastinal-tumor
#2
Takuya Hino, Takeshi Kamitani, Koji Sagiyama, Yuzo Yamasaki, Isamu Okamoto, Tetsuzo Tagawa, Kayo Ijichi, Hidetaka Yamamoto, Hidetake Yabuuchi, Hiroshi Honda
Localized malignant pleural mesothelioma (LMPM) is an extremely rare tumor. We report the case of a 40-year-old Japanese male with an LMPM mimicking an anterior mediastinal tumor due to invasion to the anterior mediastinum, and we discuss mainly the differentiation of LMPM from an anterior mediastinal tumor. The present tumor had a long shape along the pleura, and LMPM could be one of the differential diagnoses.
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30723755/solidified-mucinous-tumor-of-the-ovary-presenting-characteristic-mri-finding
#3
Junichi Matsumoto, Kotaro Yoshida, Dai Inoue, Norihide Yoneda, Hiroko Ikeda, Yasunari Mizumoto, Toshifumi Gabata
Mucinous tumors are a common ovarian cystic tumor, having a characteristic finding on MR imaging, the so-called stained glass appearance. We report a rare case of a solidified mucinous tumor of the ovary, which showed unique findings on MR images. The tumor demonstrated hypointensity on T2-weighted images, not stained glass appearance, mimicking ovarian fibrous tumor such as thecoma-fibroma. Histopathological examination confirmed solidified contents of the tumor with numerous septa and diagnosed mucinous borderline tumor/atypical proliferative tumor...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30723754/initial-experience-with-irreversible-electroporation-of-liver-tumours
#4
David Stillström, Marie Beermann, Jennie Engstrand, Jacob Freedman, Henrik Nilsson
Introduction: Thermal ablation of liver tumours is an established technique used in selected patients with relatively small tumours that can be ablated with margin. Thermal ablation methods are not advisable near larger bile ducts that are sensitive to thermal injury causing strictures and severe morbidity. Irreversible electroporation (IRE) has the possibility to treat these tumours without harming the bile tree. The method is relatively new and has been proven to be feasible and safe with promising oncological results...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30671500/peculiarities-of-stroke-like-lesions-on-mri
#5
Josef Finsterer
No abstract text is available yet for this article.
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30671499/multiple-liver-pseudotumors-due-to-hepatic-steatosis-and-fatty-sparing-a-non-invasive-imaging-approach
#6
Andrea Delli Pizzi, Domenico Mastrodicasa, Barbara Sessa, Roberta Cianci, Massimo Caulo, Raffaella Basilico
Hepatic steatosis is a frequent benign liver condition that can be idiopathic or secondary. The degree of fatty liver infiltration can be focal, diffuse or patchy. In this study, we present two patients with hepatic steatosis and multiple nodular liver lesions, due to fatty infiltration and fatty sparing respectively, mimicking a primary tumor or metastases ("pseudotumors"). Since the differential diagnosis of this kind of lesions can be difficult based on imaging alone, the knowledge of Contrast-Enhanced Ultrasound (CEUS) and Magnetic Resonance Imaging (MRI) findings may help radiologists to avoid an incorrect diagnosis of liver tumor, and unnecessary biopsies...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30627595/can-apparent-diffusion-coefficient-values-help-distinguish-between-different-types-of-pediatric-brain-tumors
#7
Abdulaziz Mohammad Al-Sharydah, Hussain Khalid Al-Arfaj, Husam Saleh Al-Muhaish, Sari Saleh Al-Suhaibani, Mohammad Saad Al-Aftan, Dana Khaled Almedallah, Abdulrhman Hamad Al-Abdulwahhab, Abdullah Abdulaziz Al-Hedaithy, Saeed Ahmad Al-Jubran
Rationale and objectives: Classifying brain tumors is challenging, but recently developed imaging techniques offer the opportunity for neuroradiologists and neurosurgeons to diagnose, differentiate, and manage different types of brain tumors. Such advances will be reflected in improvements in patients' life expectancy and quality of life. Among the newest techniques, the apparent diffusion coefficient (ADC), which tracks the rate of microscopic water diffusion within tissues, has become a focus of investigation...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30619919/comparison-of-reconstruction-and-acquisition-choices-for-quantitative-t2-maps-and-synthetic-contrasts
#8
Riikka Ruuth, Linda Kuusela, Teemu Mäkelä, Susanna Melkas, Antti Korvenoja
Aim and scope: A Gradient Echo Plural Contrast Imaging technique (GEPCI) is a post-processing method, which can be used to obtain quantitative T2* values and generate multiple synthetic contrasts from a single acquisition. However, scan duration and image reconstruction from k-space data present challenges in a clinical workflow. This study aimed at optimizing image reconstruction and acquisition duration to facilitate a post-processing method for synthetic image contrast creation in clinical settings...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30619918/evaluation-of-diagnostic-value-and-t2-weighted-three-dimensional-isotropic-turbo-spin-echo-3d-space-image-quality-in-comparison-with-t2-weighted-two-dimensional-turbo-spin-echo-2d-tse-sequences-in-lumbar-spine-mr-imaging
#9
Jomleh Hossein, Faeghi Fariborz, Rasteh Mehrnaz, Rafiei Babak
Purpose: to evaluate diagnostic value and image quality of T2-weighted Three-dimensional isotropic turbo spin-echo (SPACE) in comparison with T2-weighted two-dimensional turbo spin-echo (TSE) sequences for comprehensive evaluation of lumbar spine pathologies. Materials and methods: Thirty-five participants with lumbar discopathy were examined on a 1.5-T MRI system with both 2D TSE and 3D SPACE sequences. Obtained images were analyzed with synedra view personal (V 17...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30619917/sulcal-flair-hyperintensity-after-csf-removal-in-two-patients-with-intracranial-hypertension
#10
Milad Yazdani, Seth T Stalcup, Arindam R Chatterjee, Maria G Matheus
Sulcal hyperintensity on fluid-attenuated inversion recovery (FLAIR) sequence is a frequently encountered finding that could be due to an abnormality of cerebrospinal fluid, a secondary finding related to an intracranial pathologic process, or be artifactual or iatrogenic. Here we present two cases of sulcal FLAIR hyperintensity in the setting of intracranial hypotension after CSF removal for intracranial hypertension.
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30619916/the-effect-of-vertical-centering-and-scout-direction-on-automatic-tube-voltage-selection-in-chest-ct-a-preliminary-phantom-study-on-two-different-ct-equipments
#11
Touko Kaasalainen, Teemu Mäkelä, Mika Kortesniemi
Purpose: To determine the effect of patient's vertical off-centering and scout direction on the function of automatic tube voltage selection (ATVS) and tube current modulation (TCM) in chest computed tomography (CT). Methods: Chest phantom was scanned with Siemens and GE CT systems using three clinical chest CT protocols exploiting ATVS and a fixed 120 kVp chest protocol. The scans were performed at five vertical positions of the phantom (-6 to +6 cm from the scanner isocenter)...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30581892/efficacy-of-diffusion-tensor-imaging-in-identification-of-degenerative-cervical-spondylotic-myelopathy
#12
Monika Nukala, Jini Abraham, Ganesh Khandige, Bharath K Shetty, Arindam Pol Arjun Rao
Aim and objectives: To study the diagnostic accuracy of Diffusion tensor imaging technique in detection of cervical spondylotic myelopathy changes. Material and method: Study population included 50 patients with symptoms of cervical myelopathy. The patients were evaluated based on symptoms using the European myelopathy scoring system and were divided into: Grade 1, including patients with mild symptoms; Grade 2, referring to patients with moderate symptoms and Grade 3, which included patients revealing severe symptoms...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30560151/strategy-for-the-treatment-of-spontaneous-isolated-visceral-artery-dissection
#13
Hidenori Yamaguchi, Satoru Murata, Shiro Onozawa, Fumie Sugihara, Hiromitsu Hayashi, Shin-Ichiro Kumita
Objectives: To determine the incidence of rare spontaneous isolated visceral artery dissection (SIVAD), characterize its pathogenesis, and suggest treatment strategies. Materials and Methods: We reviewed abdominal contrast-enhanced computed-tomography (CE-CT) scans from January 2005 to December 2016 retrospectively in our institution, identified 47 SIVAD patients and classified them into a symptomatic (n = 22) or asymptomatic group (n = 25). Further, we classified the five types based on the CE-CT images...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30547062/1000-consecutive-ablation-sessions-in-the-era-of-computer-assisted-image-guidance-lessons-learned
#14
Marie Beermann, Johan Lindeberg, Jennie Engstrand, Karolina Galmén, Silja Karlgren, David Stillström, Henrik Nilsson, Piotr Harbut, Jacob Freedman
Background: Ablation therapies for tumours are becoming more used as ablation modalities evolve and targeting solutions are getting better. There is an increasing body of long-term results challenging resection and proving lower morbidities and costs. The aim of this paper is to share the experiences from a high-volume centre in introducing computer assisted targeting solutions and efficient ablation modalities like microwave generators and irreversible electroporation. Material and methods: One thousand consecutive treatments in one high-volume centre were evaluated retrospectively from prospectively collected data...
2019: European Journal of Radiology Open
https://read.qxmd.com/read/30480058/mr-imaging-of-hypoxic-ischemic-encephalopathy-distribution-patterns-and-adc-value-correlations
#15
Lokesh Rana, Dinesh Sood, Raman Chauhan, Roshni Shukla, Pooja Gurnal, Himanshu Nautiyal, Manvendra Tomar
Background and purpose: Neonatal hypoxic-ischemic encephalopathy causes hypoxic brain injury. Due to differences in brain maturity at time of insult, severity of hypotension and duration of insult, there are four distinct patterns of brain injury. Magnetic resonance imaging is the most sensitive modality for evaluating these patterns of brain injury. Additional role of Diffusion weighted imaging and ADC values can be useful in the evaluation of such cases. We conducted this study to analyse the usefulness of ADC values in the brain tissue affected by hypoxic-ischemic injury...
2018: European Journal of Radiology Open
https://read.qxmd.com/read/30480057/evaluation-of-adc-ratio-on-liver-mri-diffusion-to-discriminate-benign-versus-malignant-solid-liver-lesions
#16
Tarun Pankaj Jain, Wen Ter Kan, Sean Edward, Helen Fernon, Renuvathy Kansan Naider
PURPOSE: The aim of this project is to investigate the usefulness of the absolute liver lesion ADC value and ratio of Apparent diffusion coefficient (ADC) values of a liver lesion and liver parenchyma to discriminate between a benign and malignant lesion. METHODS: Liver MRI scans performed between January 2009 and June 2015 were retrospectively analysed. Scans were performed on either a 1.5 T or 3 T MRI unit. The type of liver lesion (benign or malignant) was determined by its radiological appearance, histology result and clinical management...
2018: European Journal of Radiology Open
https://read.qxmd.com/read/30456219/chest-pain-ct-in-the-emergency-department-watch-out-for-the-myocardium
#17
Kai Higashigaito, Ricarda Hinzpeter, Stephan Baumueller, David Benz, Robert Manka, Dagmar I Keller, Hatem Alkadhi, Fabian Morsbach
Rationale and Objectives: To evaluate the frequency and relevance of hypodense myocardium (HM) encountered in patients undergoing chest-pain CT in the emergency department (ED). Material and Methods: In this IRB-approved retrospective study, ECG-gated chest-pain CT examinations of 300 consecutive patients (mean age 60 ± 17 years) presenting with acute chest-pain to our ED were evaluated. Once ST-segment elevation infarction was excluded, chest-pain CT including the coronary arteries (rule-out acute coronary syndrome (ACS), pulmonary embolism (PE) and acute aortic syndrome (AAS): chest-pain CTcoronary , n = 121) or not including the coronary arteries was performed (rule-out PE and AAS: chest-pain CTw/o coronary , n = 179)...
2018: European Journal of Radiology Open
https://read.qxmd.com/read/30456218/review-of-diffuse-cortical-injury-on-diffusion-weighted-imaging-in-acutely-encephalopathic-patients-with-an-acronym-crumpled
#18
Yasemin Koksel, John Benson, Haitao Huang, Mehmet Gencturk, Alexander M McKinney
Purpose: Acute encephalopathic syndromes can present a diagnostic challenge due to the wide range of possible etiologies, which also can have vastly different outcomes. The presence of diffuse cortical injury (DCI) on diffusion-weighted imaging (DWI) can help narrow the differential diagnosis. The aim of this review is to categorize the range of possible etiologies of DCI into a useful acronym, "CRUMPLED". Methods: A review of the PACS system was completed to find a characteristic example of patients with DCI on DWI from different etiologies...
2018: European Journal of Radiology Open
https://read.qxmd.com/read/30450371/optimizing-diffusion-weighted-magnetic-resonance-imaging-for-evaluation-of-lung-tumors-a-comparison-of-respiratory-triggered-and-free-breathing-techniques
#19
Signe Swerkersson, Oscar Grundberg, Karl Kölbeck, Andreas Carlberg, Sven Nyrén, Mikael Skorpil
Purpose: The aim of this study was to compare respiratory-triggered (RT) and free breathing (FB) diffusion weighted imaging (DWI) techniques regarding apparent diffusion coefficient (ADC) measurements and repeatability in non-squamous non-small cell lung cancer (NSCLC) measuring the total tumor volume. Material and Methods: A total of 57 magnetic resonance imaging (MRI) examinations were analyzed. DWI was obtained by a single-shot spin-echo echo-planar imaging sequence, and for each MRI examination 2 consecutive RT and 2 consecutive FB DWI sequences were performed...
2018: European Journal of Radiology Open
https://read.qxmd.com/read/30310828/contrast-enhancement-efficacy-of-iodinated-contrast-media-effect-of-molecular-structure-on-contrast-enhancement
#20
Kuniharu Imai, Mitsuru Ikeda, Yoshiki Satoh, Keisuke Fujii, Chiyo Kawaura, Takuya Nishimoto, Masaki Mori
Purpose: To investigate the contrast enhancement in DSA images based on the X-ray absorption characteristics of iodinated contrast media. Methods: We have derived a new formula of predicting the pixel value ratio of two different contrast media and designate it as "Contrast Enhancement Ratio (CER)". In order to evaluate the accuracy of CER, we have evaluated the relationship between CER and pixel value ratio for all combinations of eleven iodinated contrast media...
2018: European Journal of Radiology Open
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