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European Journal of Radiology Open

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https://www.readbyqxmd.com/read/29719859/characterization-of-diffuse-orbital-mass-using-apparent-diffusion-coefficient-in-3-tesla-mri
#1
Sahar M ElKhamary, Alicia Galindo-Ferreiro, Laila AlGhafri, Rajiv Khandekar, Silvana Artioli Schellini
Purpose: To evaluate if the apparent diffusion coefficient (ADC) value in diffusion-weighted magnetic resonance imaging (DW-MRI) improves the diagnostic accuracy of diffuse orbital masses. Materials and methods: ADC DW-MRI was used to evaluate cases of diffuse orbital masses at our institution from 2000 to 2015. Lesions were grouped according to histopathologic diagnosis as, benign, pre-malignant and malignant. Lymphoproliferative lesions were further subgrouped as lymphoma or other lymphoproliferative lesions...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719858/imaging-features-of-neurotoxoplasmosis-a-multiparametric-approach-with-emphasis-on-susceptibility-weighted-imaging
#2
John C Benson, Gustavo Cervantes, Thomas R Baron, Andrew E Tyan, Siobhan Flanagan, Leandro T Lucato, Alexander M McKinney, Frederick Ott
Background: Neurotoxoplasmosis is a common opportunistic infection in HIV/AIDS patients. Imaging identification of neurotoxoplasmosis assists in timely treatment. Purpose: To delineate the frequency of imaging abnormalities in patients with neurotoxoplasmosis on different MR sequences with a particular focus on SWI, and NCCT. Material and methods: The PACS database was retroactively searched over a 5-year period for patients with neurotoxoplasmosis who underwent MRI with SWI...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719857/foreign-body-granuloma-mimicking-post-chemotherapy-residual-seminoma-a-case-of-true-negative-findings-using-diffusion-weighted-whole-body-magnetic-resonance-imaging-with-background-suppression
#3
Hideki Takeshita, Satoru Kawakami, Taro Takahara, Kojiro Tachibana, Shunsuke Hiranuma, Hironori Sugiyama, Makoto Kagawa, Akihiro Yano, Yohei Okada, Makoto Morozumi
Diffusion-weighted whole-body magnetic resonance imaging with background suppression (DWIBS) is increasingly used in cancer imaging. However, little is known about its usefulness in the management of metastatic seminoma, in which evaluation of the viability of postchemotherapy residual nodules is pivotal. To date, 2-18fluoro-deoxy-d-glucose positron emission tomography (FDG-PET) has been recommended for post-chemotherapeutic assessment. We describe a case of metastatic seminoma in a 27-year-old man in which the viability of post-chemotherapy residual nodules tested false-positive on FDG-PET, but true-negative on DWIBS...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719856/image-quality-with-iterative-reconstruction-techniques-in-ct-of-the-lungs-a-phantom-study
#4
Hilde Kjernlie Andersen, David Völgyes, Anne Catrine Trægde Martinsen
Background: Iterative reconstruction techniques for reducing radiation dose and improving image quality in CT have proved to work differently for different patient sizes, dose levels, and anatomical areas. Purpose: This study aims to compare image quality in CT of the lungs between four high-end CT scanners using the recommended reconstruction techniques at different dose levels and patient sizes. Material and methods: A lung phantom and an image quality phantom were scanned with four high-end scanners at fixed dose levels...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719855/cerebral-venous-thrombosis-presenting-like-a-subdural-hemorrhage-at-magnetic-resonance-imaging-an-italian-case-report
#5
E Di Caprera, L De Corato, V Giuricin, M C Pensabene, G Marfia, M Melis, F Garaci, R Floris
Cerebral venous sinus thrombosis (CVST) is responsible for 1-2% of all strokes in adults. Venous occlusive disease is a less common condition than the arterial one, but probably underestimated in the past [1]. Its early detection is crucial to ensure appropriate therapy, to prevent irreversible brain injury. The neuroradiological study is crucial to formulate the diagnosis. Unenhanced computed tomography (CT) is usually the first imaging study performed on an emergency basis. We report the case of a woman who present a migrant headache, resistant to the therapy...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719854/intravoxel-incoherent-motion-ivim-and-non-gaussian-diffusion-mri-of-the-lactating-breast
#6
Mami Iima, Masako Kataoka, Rena Sakaguchi, Shotaro Kanao, Natsuko Onishi, Makiko Kawai, Akane Ohashi, Katsutoshi Murata, Kaori Togashi
Purpose: To investigate the effect of breastfeeding on IVIM and non-Gaussian diffusion MRI in the breast. Materials and methods: An IRB approved prospective study enrolled seventeen volunteers (12 in lactation and 5 with post-weaning, range 31-43 years; mean 35.4 years). IVIM (fIVIM and D*) and non-Gaussian diffusion (ADC0 and K) parameters using 16 b values, plus synthetic apparent diffusion coefficients (sADCs) from 2 key b values (b = 200 and 1500 s/mm2 ) were calculated using regions of interest...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719853/reconstruction-of-white-matter-fibre-tracts-using-diffusion-kurtosis-tensor-imaging-at-1-5t-pre-surgical-planning-in-patients-with-gliomas
#7
Joao Leote, Rita G Nunes, Luis Cerqueira, Ricardo Loução, Hugo A Ferreira
Tractography studies for pre-surgical planning of primary brain tumors is typically done using diffusion tensor imaging (DTI), which cannot resolve crossing, kissing or highly angulated fibres. Tractography based on the estimation of the diffusion kurtosis (DK) tensor was recently demonstrated to enable tackling these limitations. However, its use in the clinical context at low 1.5T field has not yet been reported. Purpose: To evaluate if the estimation of whole-brain tractography using the DK tensor is feasible for pre-surgical investigation of patients with brain tumors at 1...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29719852/performance-survey-on-a-new-standardized-formula-for-oral-signal-suppression-in-mrcp
#8
Anne Frisch, Thula C Walter, Christian Grieser, Dominik Geisel, Bernd Hamm, Timm Denecke
Background: Orally administered substances, which reduce image contamination by overlying gastrointestinal fluid signals, can be used to enhance the quality of MRCP images. Recently, a new standardized formula consisting of biological substances has become available. The objective of this study is to provide a first assessment of achievable MRCP image quality, taste and palatability of this new dedicated agent. Methods: In January 2015 to May 2015 practicing radiologists in Germany, Austria and Switzerland were asked to evaluate image quality as well as taste and palatability when using the new agent (LumiVision® ; b...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29707614/comparison-of-inter-and-intra-observer-variability-of-breast-density-assessments-using-the-fourth-and-fifth-editions-of-breast-imaging-reporting-and-data-system
#9
Afsaneh Alikhassi, Hamed Esmaili Gourabi, Masoud Baikpour
Background: Breast density is a well-known independent risk factor for breast cancer and can significantly affect the sensitivity of screening mammograms. Objective: We aimed to evaluate the intra- and inter-observer consistencies of breast density assessments using methods outlined in the fourth and fifth editions of the American College of Radiology (ACR) Breast Imaging Reporting and Data System (BI-RADS) guidelines to determine which method is more reliable. Materials and methods: Three radiologists with subspecialties in breast imaging defined breast density in 72 mammograms four times each: twice using the fourth edition of the ACR BI-RADS guidelines and twice using the fifth edition...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29687051/asymptomatic-pancreatic-body-herniation-complicated-with-periauricular-squamous-cell-carcinoma
#10
Isil Yildiz
Hiatus hernia is defined as herniation of the abdominal elements through the esophageal hiatus into the madiastinum. Type IV hiatal herniation is the rarest of all paraoesaphagial hernias. Herniation of pancreas is extremely rare. A 63-year-old male was admitted to the department of oncology with a periauricular squamous cell carcinoma (SCC). Abdominal CT was performed for organ metastasis. No metastasis was found, but hiatal herniation of the stomach along with the body of the pancreas into the thorax was observed...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29687050/correlation-of-apparent-diffusion-coefficient-ratio-on-3-0-t-mri-with-prostate-cancer-gleason-score
#11
Rajeev Jyoti, Tarun Pankaj Jain, Hodo Haxhimolla, Heath Liddell, Sean Edward Barrett
Introduction: The purpose was to investigate the usefulness of ADCratio on Diffusion MRI to discriminate between benign and malignant lesions of Prostate. Methods: Images of patients who underwent in-gantry MRI guided prostate lesion biopsy were retrospectively analyzed. Prostate Cancers with 20% or more Gleason score (GS) pattern 3 + 3 = 6 in each core or any volume of higher Gleason score pattern were included. ADCratio was calculated by two reviewers for each lesion...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29387736/phosphoglyceride-crystal-deposition-disease-mimicking-a-malignant-tumor
#12
Hiroyuki Tokue, Masayuki Ebara, Ryosuke Takahashi, Azusa Tokue, Yoshito Tsushima
A 45-year-old woman who had undergone surgical repair for an atrial septal defect at the age of 7 years presented with multiple anterior mediastinal masses. Positron-emission tomography (PET) with 2-[18 F]fluoro-2-deoxy-d-glucose (FDG) revealed high uptake in the masses. The findings were interpreted as mediastinal malignant tumors with dissemination. Biopsy was performed, and the histological diagnosis was phosphoglyceride crystal deposition disease without neoplastic changes. Although phosphoglyceride crystal deposition disease is rare, it should be recognized as a potential interpretive pitfall that mimics a malignant tumor in FDG-PET findings in a patient after cardiac surgery...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29387735/mri-findings-of-complications-related-to-previous-uterine-scars
#13
REVIEW
Leonor Alamo, Yvan Vial, Alban Denys, Gustav Andreisek, Jean-Yves Meuwly, Sabine Schmidt
Although the World Health Organization suggests 10-15% as the adequate cesarean delivery rate to assure optimal prognosis for mother and children, cesarean rates have continuously increased worldwide over the last three decades, even in primiparous women. Moreover, uterine scars after myomectomies, complications of obstetrical interventions and more recently, after fetal surgery, are often observed. This review article describes the most commonly seen complications related to prior uterine scars and discusses their imaging findings, with emphasis on the increasing role of Magnetic Resonance Imaging for diagnosis...
2018: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29234688/superior-semicircular-canal-dehiscence-a-new-perspective
#14
Dinesh Sood, Lokesh Rana, Raman Chauhan, Roshni Shukla, Khanak Nandolia
Objective: To determine the use of multi-detector computed tomography (MDCT) in the diagnostic interpretation of superior semicircular canal dehiscence (SSCD) or thinning and its association with ear pathologies and to find whether it is an acquired condition and its association with increase in age. Materials and methods: study was performed in a tertiary care institute present in a village, following approval of the institutional ethical committee. Retrospective review of temporal bone CT examinations performed between September 2016 and March 2017 was done...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29159208/a-rare-presentation-of-spigelian-hernia-involving-the-appendix
#15
Ling Xu, Gurjeet Dulku, Richard Ho
Spigelian hernia (SH) is a rare entity accounting for 1-2% of ventral abdominal wall hernias. Elusive clinical signs and symptoms pose a diagnostic challenge and a consequent risk of strangulation. We present an emergent case of a Spigelian hernia involving the appendix.
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29159207/primary-breast-chondrosarcoma-imaging-and-pathological-findings
#16
Antonio Matteo Amadu, Daniela Soro, Vincenzo Marras, Giulia Satta, Paola Crivelli, Maurizio Conti, Giovanni Battista Meloni
We present the case of a 62 year-old woman who was admitted to our institute of radiological sciences for a breast mass developed in the last few months. The final diagnosis was primary breast chondrosarcoma and the surgical treatment performed, based on imaging and pathological findings, was the mastectomy.
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29159206/influence-of-patient-position-and-other-inherent-factors-on-image-quality-in-two-different-cone-beam-computed-tomography-cbct-devices
#17
Ninita Lindfors, Henrik Lund, Hans Johansson, Annika Ekestubbe
Objectives: The aim of this in vitro study was to evaluate how a deviation from the horizontal plane, affects the image quality in two different CBCT-devices. Methods: A phantom head SK150 (RANDO, The Phantom Laboratory, Salem, NY, USA) was examined in two CBCT-units: Accuitomo 80 and Veraviewepocs 3D R100 (J. Morita Mfg. Corp. Kyoto, Japan). The phantom head was placed with the hard palate parallel to the horizontal plane and tilted 20 ° backwards. Exposures were performed with different field of views (FOVs), voxel sizes, slice thicknesses and exposure settings...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29034283/endovenous-laser-ablation-of-spermatic-vein-for-the-treatment-of-varicocele
#18
Antonio Basile, Alessandro Motta, Giovanni Failla, Giuseppe Caltabiano, Marco Pizzarelli, Cecilia Gozzo, Davide Castiglione, Stefano Palmucci
INTRODUCTION: Varicocele is a relatively complex pathology of the scrotum veins', known to be one of the easiest to treat. Modern treatment involves both surgical (open, laparoscopic and microsurgery) and interventional approach (either with coils and/or sclerosant injection). Our aim is to demonstrate the feasibility and the reliability of endovenous laser ablation (EVLA) of the spermatic vein for the treatment of varicocele. MATERIALS AND METHODS: We consecutively and prospectively treated 11 patients (age range 24-45 years old, mean 31y) with left varicocele, phlebografically classified as Bahren type I and with indication for percutaneous treatment...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29034282/differentiation-of-prostate-cancer-lesions-in-the-transition-zone-by-diffusion-weighted-mri
#19
Jie Bao, Ximing Wang, Chunhong Hu, Jianquan Hou, Fenglin Dong, Lingchuan Guo
OBJECTIVE: To differentiate prostate cancer lesions in transition zone by diffusion-weighted-MRI (DW-MRI). METHODS: Data from a total of 63 patients who underwent preoperative DWI (b of 0-1000 s/mm2 ) were prospectively collected and processed by a monoexponential (DWI) model and compared with a biexponential (IVIM) model for quantitation of apparent diffusion coefficients (ADCs), perfusion fraction f, diffusivity D and pseudo-diffusivity D*. Histogram analyses were performed by outlining entire-tumor regions of interest (ROIs)...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/29034281/systematic-review-of-the-safety-and-efficacy-of-contrast-injection-via-venous-catheters-for-contrast-enhanced-computed-tomography
#20
REVIEW
S B Buijs, M W Barentsz, M L J Smits, J W C Gratama, P E Spronk
OBJECTIVE: To examine the safety and efficacy of contrast injection through a central venous catheter (CVC) for contrast-enhanced computed tomography (CECT). METHODS: A systematic literature search was performed using PubMed. Studies were deemed eligible if they reported on the use of CVCs for contrast administration. Selected articles were assessed for their relevance and risk of bias. Articles with low relevance and high risk of bias or both were excluded. Data from included articles was extracted...
2017: European Journal of Radiology Open
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