Prevalence of MRI-Detected Ankle Injuries in Athletes in the Rio de Janeiro 2016 Summer Olympics
ConclusionOur study demonstrated a high prevalence of acute and subacute, but also pre-existing injuries in Olympic athletes undergoing ankle MRI. Tendon injuries were the most common acute injuries, found mainly in ball sports athletes. Most pre-existing ankle injuries were identified at the ligaments. (Source: Academic Radiology)
Source: Academic Radiology - February 22, 2019 Category: Radiology Source Type: research

Reprint of: Voxel-Wise Longitudinal Parametric Response Mapping Analysis of Chest Computed Tomography in Smokers
ConclusionA voxel-wise longitudinal PRM analytic approach can identify patterns of disease progression in smokers with and without chronic obstructive pulmonary disease. (Source: Academic Radiology)
Source: Academic Radiology - February 19, 2019 Category: Radiology Source Type: research

Comparison of 2D BLADE Turbo Gradient- and Spin-Echo and 2D Spin-Echo Echo-Planar Diffusion-Weighted Brain MRI at 3 T: Preliminary Experience in Children
We describe our preliminary experience using a 2D turbo gradient- and spin-echo (TGSE) diffusion-weighted (DW) pulse sequence with non-Cartesian BLADE trajectory at 3 T in pediatric patients. We compared the TGSE BLADE to conventional DW spin-echo echo-planar imaging (SE-EPI) in pediatric brain imaging, assessing the presence of artifacts from signal pile-ups, geometric distortion, motion, susceptibility from air-tissue interface, shunts and orthodontia, and diagnostic image quality.Materials and MethodsData were acquired in 53 patients (10.4 ± 7.9 years). All DW imaging data were acquired precontrast, with SE-EPI f...
Source: Academic Radiology - February 16, 2019 Category: Radiology Source Type: research

Radiology's Role in Public Health Education About Obesity
Publication date: Available online 16 February 2019Source: Academic RadiologyAuthor(s): Evan M Rush, Richard B Gunderman (Source: Academic Radiology)
Source: Academic Radiology - February 16, 2019 Category: Radiology Source Type: research

Perception's Crucial Role in Radiology Education
Publication date: Available online 14 February 2019Source: Academic RadiologyAuthor(s): Richard B. Gunderman, Parth Patel (Source: Academic Radiology)
Source: Academic Radiology - February 14, 2019 Category: Radiology Source Type: research

Prognostic Value of the Pretreatment Primary Lesion Quantitative Dynamic Contrast-Enhanced Magnetic Resonance Imaging for Nasopharyngeal Carcinoma
ConclusionBaseline quantitative DCE-MRI may be valuable in predicting the prognosis for NPC. (Source: Academic Radiology)
Source: Academic Radiology - February 14, 2019 Category: Radiology Source Type: research

Factors Impacting False Positive Recall in Screening Mammography
Publication date: Available online 14 February 2019Source: Academic RadiologyAuthor(s): Evan L. Honig, Lisa A. Mullen, Tali Amir, Matthew D. Alvin, Mary K. Jones, Emily B. Ambinder, Eniola T. Falomo, Susan C. HarveyRationale and ObjectivesOur objective was to identify factors impacting false positive recalls in screening mammography.Materials and MethodsWe retrospectively reviewed our screening mammography database from August 31, 2015 to September 30, 2016, including full field digital mammograms (FFDM) and digital breast tomosynthesis (DBT) mammograms. False positive (FP) exams were defined as Breast Imaging-Reporting an...
Source: Academic Radiology - February 14, 2019 Category: Radiology Source Type: research

Discrimination Between Solitary Brain Metastasis and Glioblastoma Multiforme by Using ADC-Based Texture Analysis: A Comparison of Two Different ROI Placements
ConclusionThe ADC-based texture analysis can help differentiate GBM from sMET, and the ROI on the solid portion would be recommended to calculate the ADC-based texture metrics. (Source: Academic Radiology)
Source: Academic Radiology - February 13, 2019 Category: Radiology Source Type: research

Coronary CT Angiography in Challenging Patients: High Heart Rate and Atrial Fibrillation. A Review
Publication date: Available online 10 February 2019Source: Academic RadiologyAuthor(s): Saima Mushtaq, Edoardo Conte, Eleonora Melotti, Daniele AndreiniDespite several strategies have been developed by different vendors to improve image quality and diagnostic accuracy of coronary CT angiography performed at high heart rate (HR) and HR variability, as in patients with atrial fibrillation (AF), some concerns and small clinical experience characterize these subsets of challenging patients. However, patients with AF have been reported to have higher risk of cardiovascular events and noninvasive evaluation of suspected coronary...
Source: Academic Radiology - February 11, 2019 Category: Radiology Source Type: research

Gestalt Theory in Education and Practice
Publication date: Available online 11 February 2019Source: Academic RadiologyAuthor(s): Mert Sirakaya (Source: Academic Radiology)
Source: Academic Radiology - February 11, 2019 Category: Radiology Source Type: research

Mammographic Breast Density: More than Meets the Eye
Publication date: Available online 7 February 2019Source: Academic RadiologyAuthor(s): Victoria L. Mango (Source: Academic Radiology)
Source: Academic Radiology - February 7, 2019 Category: Radiology Source Type: research

The Baader-Meinhof Phenomenon in Radiology
Publication date: Available online 7 February 2019Source: Academic RadiologyAuthor(s): Kush Purohit (Source: Academic Radiology)
Source: Academic Radiology - February 7, 2019 Category: Radiology Source Type: research

Patient-Centered and Specialty-Specific Case Work-Up: An Effective Method for Teaching Appropriateness of Imaging to Medical Students
Publication date: Available online 5 February 2019Source: Academic RadiologyAuthor(s): Mike Sheng, Preya Shah, John M. Choi, Eleanor Gillis, Sharyn I. Katz, Scott A. Simpson, Sean H. Novak, Arun C. NachiappanRationale and ObjectivesOur institution has developed a mini-course program within the diagnostic radiology elective curriculum that promotes active learning, using patient cases specifically tailored to students’ future specialties. The purpose of this study is to evaluate the effectiveness of this mini-course on medical student knowledge of imaging appropriateness and attitude toward radiologist consultation.Ma...
Source: Academic Radiology - February 6, 2019 Category: Radiology Source Type: research

Response to: Accuracy of Breast MRI Compared to MG in the Preoperative Detection and Measurement of Pure Ductal Carcinoma In Situ: A Methodological Issue
Publication date: Available online 6 February 2019Source: Academic RadiologyAuthor(s): Heike Preibsch, Gunnar Blumenstock (Source: Academic Radiology)
Source: Academic Radiology - February 6, 2019 Category: Radiology Source Type: research

Risk Assessment of Intracranial Aneurysms with MRI
Publication date: Available online 4 February 2019Source: Academic RadiologyAuthor(s): Masaaki Hori, Shohei Fujita (Source: Academic Radiology)
Source: Academic Radiology - February 5, 2019 Category: Radiology Source Type: research

Recruiting Medical Students to Interventional Radiology: Current State of Affairs
ConclusionOur survey offers a snapshot of exactly what program directors are doing to address the issue of medical student recruitment. (Source: Academic Radiology)
Source: Academic Radiology - February 5, 2019 Category: Radiology Source Type: research

Automatic Breast and Fibroglandular Tissue Segmentation in Breast MRI Using Deep Learning by a Fully-Convolutional Residual Neural Network U-Net
ConclusionDeep learning based on the U-net algorithm can achieve accurate segmentation results for the breast and FGT on MRI. It may provide a reliable and efficient method to process large number of MR images for quantitative analysis of breast density. (Source: Academic Radiology)
Source: Academic Radiology - February 1, 2019 Category: Radiology Source Type: research

Machine Learning-based Analysis of Rectal Cancer MRI Radiomics for Prediction of Metachronous Liver Metastasis
ConclusionRadiomics models based on baseline rectal magnetic resonance imaging has high potential for MLM prediction, especially the Modeloptimal using LR algorithm. Moreover, except for ModelVP, the LR was not superior to the SVM algorithm for model construction. (Source: Academic Radiology)
Source: Academic Radiology - January 31, 2019 Category: Radiology Source Type: research

Growing Interest in Radiology Despite AI Fears
Publication date: Available online 31 January 2019Source: Academic RadiologyAuthor(s): Kush Purohit (Source: Academic Radiology)
Source: Academic Radiology - January 31, 2019 Category: Radiology Source Type: research

Accuracy of Breast MRI Compared to MG in the Preoperative Detection and Measurement of Pure Ductal Carcinoma In Situ: A Methodological Issue
Publication date: Available online 31 January 2019Source: Academic RadiologyAuthor(s): Soodeh Shahsavari (Source: Academic Radiology)
Source: Academic Radiology - January 31, 2019 Category: Radiology Source Type: research

Changes in Apparent Diffusion Coefficient as Surrogate Marker for Changes in Ki-67 Index Due to Neoadjuvant Chemotherapy in Patients with Invasive Breast Cancer
ConclusionComparison of pre- and post-NAC ADC can be used to estimate the change in Ki-67 index in patients with invasive breast cancer. (Source: Academic Radiology)
Source: Academic Radiology - January 31, 2019 Category: Radiology Source Type: research

RE: A Methodological Issue in Prediction of Cancer Masking in Screening Mammography Using Density and Textural Features - Authors’ Response
Publication date: Available online 31 January 2019Source: Academic RadiologyAuthor(s): James G. Mainprize, Olivier Alonzo-Proulx, Taghreed Alshafeiy, James T. Patrie, Jennifer A. Harvey, Martin J. Yaffe (Source: Academic Radiology)
Source: Academic Radiology - January 31, 2019 Category: Radiology Source Type: research

A Methodological Issue in Prediction of Cancer Masking in Screening Mammography Using Density and Textural Features
Publication date: Available online 30 January 2019Source: Academic RadiologyAuthor(s): Sara Jambarsang, Seyyed Mohammad Tabatabaei, Ronak Ahmadi (Source: Academic Radiology)
Source: Academic Radiology - January 30, 2019 Category: Radiology Source Type: research

Contrast Enhancement Boost Technique at Aortic Computed Tomography Angiography: Added Value for the Evaluation of Type II Endoleaks After Endovascular Aortic Aneurysm Repair
Publication date: Available online 30 January 2019Source: Academic RadiologyAuthor(s): Hitoshi Iizuka, Yasuhiro Yokota, Masafumi Kidoh, Seitaro Oda, Osamu Ikeda, Yoshitaka Tamura, Yoshinori Funama, Daisuke Sakabe, Takeshi Nakaura, Yasuyuki Yamashita, Daisuke UtsunomiyaRationale and ObjectivesDelayed-phase acquisition of the computed tomography (CT) angiography is important for the evaluation of type II endoleaks after endovascular aortic aneurysm repair because the endoleak cavity area is associated with aneurysm sac expansion. Contrast enhancement boost (CE-boost) is a postprocessing technique for increasing the degree of...
Source: Academic Radiology - January 30, 2019 Category: Radiology Source Type: research

The Resident Travel Dilemma
Publication date: Available online 30 January 2019Source: Academic RadiologyAuthor(s): Cory M. Pfeifer (Source: Academic Radiology)
Source: Academic Radiology - January 30, 2019 Category: Radiology Source Type: research

Radiological Advances in Pancreatic Islet Transplantation
Publication date: Available online 30 January 2019Source: Academic RadiologyAuthor(s): Donal Cahill, Fernanda Zamboni, Maurice N. CollinsType 1 diabetes mellitus (T1DM) is characterized by hyperglycemia, owing to the loss of pancreatic β cells in response to an autoimmune reaction leading to a state of absolute insulin deficiency. T1DM treatment is shifting from exogenous insulin replacement therapy toward pancreatic β-cell replacement, to restore physiologically responsive insulin secretion to variations in blood glucose levels. β-cell replacement strategies include human whole pancreas transplantation, isl...
Source: Academic Radiology - January 30, 2019 Category: Radiology Source Type: research

Not the Time for Complacency
Publication date: Available online 30 January 2019Source: Academic RadiologyAuthor(s): Bo Gong, James P. Nugent, William Guest, William Parker, Paul J. Chang, Faisal Khosa, Savvas Nicolaou (Source: Academic Radiology)
Source: Academic Radiology - January 30, 2019 Category: Radiology Source Type: research

Artificial Intelligence in Radiology: Resident Recruitment Help or Hindrance?
Publication date: Available online 24 January 2019Source: Academic RadiologyAuthor(s): Allison Grayev (Source: Academic Radiology)
Source: Academic Radiology - January 25, 2019 Category: Radiology Source Type: research

Comparison of Nongated Chest CT and Dedicated Calcium Scoring CT for Coronary Calcium Quantification Using a 256-Dector Row CT Scanner
ConclusionNongated chest CT with 256-detector row is a reliable imaging mode for detecting and quantifying calcifications in coronary arteries compared with dedicated calcium-scoring CT. (Source: Academic Radiology)
Source: Academic Radiology - January 24, 2019 Category: Radiology Source Type: research

Detection of Pulmonary Embolism Based on Reduced Changes in Radiographic Lung Density During Cardiac Beating Using Dynamic Flat-panel Detector: An Animal-based Study
Publication date: Available online 23 January 2019Source: Academic RadiologyAuthor(s): Rie Tanaka, Tohru Tani, Norihisa Nitta, Takahisa Tabata, Noritsugu Matsutani, Shintaro Muraoka, Tsutomu Yoneyama, Shigeru SanadaRationale and ObjectivesTo assess the capacity of dynamic flat-panel detector imaging without the use of contrast media to detect pulmonary embolism (PE) based on temporal changes in radiographic lung density during cardiac beating.Materials and MethodsSequential chest radiographs of six pigs were acquired using a dynamic flat-panel detector system. A porcine model of PE was developed, and temporal changes in pi...
Source: Academic Radiology - January 23, 2019 Category: Radiology Source Type: research

Comparison of Whole Heart Computed Tomography Scanners for Image Quality Lower Radiation Dosing in Coronary Computed Tomography Angiography: The CONVERGE Registry
Publication date: Available online 23 January 2019Source: Academic RadiologyAuthor(s): Nirali Patel, Dong Li, Rine Nakanishi, Badiha Fatima, Daniele Andreini, Gianluca Pontone, Edoardo Conte, Rachael O'Rourke, Eranthi Jayawardena, Christian Hamilton-Craig, Manojna Nimmagadda, Matthew J. BudoffRationale and ObjectivesNovel technology in coronary computed tomographic angiography allows assessment of coronary artery disease with high image quality (IQ). There are currently two wide detector “whole heart” coverage scanners available, which avoid misregistration artifacts. However, there are no data directly compari...
Source: Academic Radiology - January 23, 2019 Category: Radiology Source Type: research

A Victim of Our Own Success
Publication date: Available online 22 January 2019Source: Academic RadiologyAuthor(s): N. Reed Dunnick (Source: Academic Radiology)
Source: Academic Radiology - January 22, 2019 Category: Radiology Source Type: research

Changes in the Utilization of the BI-RADS Category 3 Assessment in Recalled Patients Before and After the Implementation of Screening Digital Breast Tomosynthesis
Publication date: Available online 19 January 2019Source: Academic RadiologyAuthor(s): Tricia Stepanek, Niki Constantinou, Holly Marshall, Ramya Pham, Cheryl Thompson, Christina Dubchuk, Donna PlechaRationale and ObjectivesThe purpose of this study was to compare the utilization of the Breast Imaging Reporting and Data System (BI-RADS) category 3 assessment in patients recalled from screening before and after the implementation of digital breast tomosynthesis (DBT).Materials and MethodsThis was a retrospective review of 11,478 digital mammography (DM) screening exams and 9350 DM+DBT screening exams. Lesions assigned a BI-R...
Source: Academic Radiology - January 20, 2019 Category: Radiology Source Type: research

The Importance of Learning to Listen
Publication date: Available online 17 January 2019Source: Academic RadiologyAuthor(s): Richard B. Gunderman (Source: Academic Radiology)
Source: Academic Radiology - January 18, 2019 Category: Radiology Source Type: research

Machine Learning to Differentiate T2-Weighted Hyperintense Uterine Leiomyomas from Uterine Sarcomas by Utilizing Multiparametric Magnetic Resonance Quantitative Imaging Features
This study assessed the feasibility of using machine learning to differentiate uterine sarcomas from leiomyomas with high signal intensity on T2WI on multiparametric magnetic resonance imaging.Materials and MethodsThis retrospective study included 80 patients (50 with benign leiomyoma and 30 with uterine sarcoma) who underwent pelvic 3 T magnetic resonance imaging examination for the evaluation of uterine myometrial smooth muscle masses with high signal intensity on T2WI. We used six machine learning techniques to develop prediction models based on 12 texture parameters on T1WI and T2WI, apparent diffusion coefficient maps...
Source: Academic Radiology - January 18, 2019 Category: Radiology Source Type: research

Does the Apparent Diffusion Coefficient Value Predict Permanent Cerebral Ischemia/Reperfusion Injury in Rats?
ConclusionADC measurement in the acute phase can predict permanent cerebral I/R injury and provide important information for the evaluation of ischemic stroke. (Source: Academic Radiology)
Source: Academic Radiology - January 18, 2019 Category: Radiology Source Type: research

Institutional Implementation of a Structured Reporting System: Our Experience with the Brain Tumor Reporting and Data System
Publication date: Available online 18 January 2019Source: Academic RadiologyAuthor(s): Ashwani Gore, Michael J. Hoch, Hui-Kuo G. Shu, Jeffrey J. Olson, Alfredo D. Voloschin, Brent D. WeinbergRationale and ObjectivesAnalyze the impact of implementing a structured reporting system for primary brain tumors, the Brain Tumor Reporting and Data System, on attitudes toward radiology reports at a single institution.Materials and MethodsFollowing Institutional Review Board approval, an initial 22 question, 5 point (1—worst to 5—best), survey was sent to faculty members, house staff members, and nonphysician providers at...
Source: Academic Radiology - January 18, 2019 Category: Radiology Source Type: research

Breast Cancer Molecular Subtype Prediction by Mammographic Radiomic Features
This study aimed to investigate whether quantitative radiomic features extracted from digital mammogram images are associated with molecular subtypes of breast cancer.Materials and MethodsIn this institutional review board–approved retrospective study, we collected 331 Chinese women who were diagnosed with invasive breast cancer in 2015. This cohort included 29 triple-negative, 45 human epidermal growth factor receptor 2 (HER2)-enriched, 36 luminal A, and 221 luminal B lesions. A set of 39 quantitative radiomic features, including morphologic, grayscale statistic, and texture features, were extracted from the segment...
Source: Academic Radiology - January 18, 2019 Category: Radiology Source Type: research

Detection of Intra-Articular Screw Penetration of Proximal Humerus Fractures: Is Postoperative Computed Tomography the Necessary Imaging Modality?
This study compared postoperative plain radiography to computed tomography (CT) for their abilities in determining screw penetration, and was to evaluate whether advanced imaging modalities (two-dimensional [2D] CT; three-dimensional [3D] CT) could increase surgeons' level of confidence regarding their diagnoses.Materials and MethodsTwo observers reviewed radiological images of 134 patients who sustained proximal humerus fractures treated with locking plates. The observers were asked to answer two questions: (1) Is there screw penetrating into glenohumeral joint for this patient (Yes/No)? and (2) On a scale from 0 to 10, h...
Source: Academic Radiology - January 18, 2019 Category: Radiology Source Type: research

MRI Diagnosis for Post-Traumatic Osteomyelitis of Extremities Using Conventional Metal-Artifact Reducing Protocols: Revisited
Publication date: Available online 17 January 2019Source: Academic RadiologyAuthor(s): Bit Na Park, Suk-Joo Hong, Min A Yoon, Jong-Keon OhRationale and ObjectivesTo assess the diagnostic power of MR imaging features for post-traumatic osteomyelitis (PTOM) of the extremities with metal implants using a 3.0-T machine with conventional metal-artifact reducing (MAR) protocols.Materials and MethodsBetween December 2012 and September 2016, 261 consecutive patients underwent MRI for clinical suspicion of PTOM in the appendicular skeleton at our hospital. A total of 72 enrolled patients with metal implants were divided into two gr...
Source: Academic Radiology - January 17, 2019 Category: Radiology Source Type: research

Development and Validation of a MRI-Based Radiomics Prognostic Classifier in Patients with Primary Glioblastoma Multiforme
Publication date: Available online 17 January 2019Source: Academic RadiologyAuthor(s): Xin Chen, Mengjie Fang, Di Dong, Lingling Liu, Xiangdong Xu, Xinhua Wei, Xinqing Jiang, Lei Qin, Zaiyi LiuRationale and ObjectivesGlioblastoma multiforme (GBM) is the most common and deadly type of primary malignant tumor of the central nervous system. Accurate risk stratification is vital for a more personalized approach in GBM management. The purpose of this study is to develop and validate a MRI-based prognostic quantitative radiomics classifier in patients with newly diagnosed GBM and to evaluate whether the classifier allows stratif...
Source: Academic Radiology - January 17, 2019 Category: Radiology Source Type: research

The Effect of a Subsequent Pregnancy After Ovarian Vein Embolization in Patients with Infertility Caused by Pelvic Congestion Syndrome
Publication date: Available online 17 January 2019Source: Academic RadiologyAuthor(s): Juanfang Liu, Liping Han, Xinwei HanRationale and ObjectivesTo report the effect of pregnancy on patients who have undergone pelvic vein embolization with pelvic congestion syndrome, which was suspected to be the only cause of infertility.Material and MethodsData from a total of 12 women (mean age: 36.5 ± 4.3 years, range: 29–45 years) were collected between May 2013 and June 2016. Transvenous embolization with fibre platinum coils combined with anhydrous alcohol was performed in unilateral or bilateral ovarian veins after t...
Source: Academic Radiology - January 17, 2019 Category: Radiology Source Type: research

Initial Clinical Experience with Stationary Digital Breast Tomosynthesis
Publication date: Available online 17 January 2019Source: Academic RadiologyAuthor(s): Yueh Z. Lee, Connor Puett, Christina R. Inscoe, Beilin Jia, Connie Kim, Ruth Walsh, Sora Yoon, Suk Jung Kim, Cherie M. Kuzmiak, Donglin Zeng, Jianping Lu, Otto ZhouRationale and ObjectivesA linear array of carbon nanotube-enabled x-ray sources allows for stationary digital breast tomosynthesis (sDBT), during which projection views are collected without the need to move the x-ray tube. This work presents our initial clinical experience with a first-generation sDBT device.Materials and MethodsFollowing informed consent, women with a &ldquo...
Source: Academic Radiology - January 17, 2019 Category: Radiology Source Type: research

The Application of a New Model-Based Iterative Reconstruction in Low-Dose Upper Abdominal CT
Publication date: Available online 17 January 2019Source: Academic RadiologyAuthor(s): Yongjun Jia, Bingying Zhai, Taiping He, Yong Yu, Nan Yu, Haifeng Duan, Chuangbo Yang, Xirong ZhangRationale and ObjectivesTo compare upper abdominal computed tomography (CT) image quality of new model-based iterative reconstruction (MBIR) with low-contrast resolution preference (MBIRNR40), conventional MBIR (MBIRc), and adaptive statistical iterative reconstruction (ASIR) at low dose with ASIR at routine-dose.Materials and MethodsStudy included phantom and 60 patients who had initial and follow-up CT scans. For patients, the delay phase ...
Source: Academic Radiology - January 17, 2019 Category: Radiology Source Type: research

Impact of the Intima Dynamic Motion in Type B Acute Aortic Dissection on Renal Injury: Quantificationally Assessed by Dose-Regulated Retrospective ECG-Gated Dual-Source CT Angiography
Publication date: Available online 15 January 2019Source: Academic RadiologyAuthor(s): Shuo Zhao, Hui Gu, Yanhua Duan, Zhaoping Cheng, Baojin Chen, Shifeng Yang, Ximing WangBackgroundLittle is known about the influence of intima dynamic motion on organ ischemia and related outcomes. The purpose of this study is to quantitatively evaluate intima oscillation by CT angiography (CTA), determine its impact on acute kidney injury (AKI) in patients with type B acute aortic dissection (TB-AAD) before thoracic endovascular aortic repair (TEVAR), and further analyze its association with early adverse events postoperatively.MethodsTo...
Source: Academic Radiology - January 16, 2019 Category: Radiology Source Type: research

“Structure-Function Imaging of Lung Disease Using Ultrashort Echo Time MRI”
Conclusion:Current limitations of UTE MRI include long scan times, poor delineation of thin-walled structures (e.g. cysts and reticulation) due to limited spatial resolution, low signal to noise ratio, and imperfect motion compensation. Despite these limitations, UTE MRI can now be considered as an alternative to multidetector computed tomography for the longitudinal follow-up of the morphological changes from lung diseases in neonates, children, and young adults, particularly as a complement to the unique functional capabilities of MRI. (Source: Academic Radiology)
Source: Academic Radiology - January 16, 2019 Category: Radiology Source Type: research

Differentiation Between Multiple System Atrophy and Other Spinocerebellar Degenerations Using Diffusion Kurtosis Imaging
Publication date: Available online 16 January 2019Source: Academic RadiologyAuthor(s): Kenji Ito, Chigumi Ohtsuka, Kunihiro Yoshioka, Tetsuya Maeda, Suguru Yokosawa, Futoshi Mori, Tsuyoshi Matsuda, Yasuo Terayama, Makoto SasakiRationale and ObjectiveDifferentiation between multiple system atrophy (MSA) and other spinocerebellar degenerations showing cerebellar ataxia is often difficult. Hence, we investigated whether magnetic resonance diffusion kurtosis imaging (DKI) could detect pathological changes that occur in these patients and be used for differential diagnosis.MethodsThirty-six subjects (12 patients with MSA accomp...
Source: Academic Radiology - January 16, 2019 Category: Radiology Source Type: research

Renal Adiposity Does not Preclude Quantitative Assessment of Renal Function Using Dual-Energy Multidetector CT in Mildly Obese Human Subjects
ConclusionTherefore, our findings support our hypothesis that background subtraction enables reliable assessment of kidney function in mildly obese subjects using MDCT, despite decreased basal attenuation due to renal adiposity. (Source: Academic Radiology)
Source: Academic Radiology - January 15, 2019 Category: Radiology Source Type: research

Diagnostic Accuracy of Noncontrast Self-navigated Free-breathing MR Angiography versus CT Angiography: A Prospective Study in Pediatric Patients with Suspected Anomalous Coronary Arteries
Publication date: Available online 14 January 2019Source: Academic RadiologyAuthor(s): Moritz H. Albrecht, Akos Varga-Szemes, U. Joseph Schoepf, John W. Nance, Carlo N. De Cecco, Domenico De Santis, Christian Tesche, Marwen H. Eid, Megha Penmetsa, Virginia W. Lesslie, Davide Piccini, Markus Goeller, Julian L. Wichmann, Thomas J. Vogl, Shahryar M. Chowdhury, Arni Nutting, Anthony M. HlavacekRationale and ObjectivesTo evaluate the diagnostic accuracy of a prototype noncontrast, free-breathing, self-navigated 3D (SN3D) MR angiography (MRA) technique for the assessment of coronary artery anatomy in children with known or suspe...
Source: Academic Radiology - January 15, 2019 Category: Radiology Source Type: research

“Code-Stroke” CT Perfusion; Challenges and Pitfalls
Publication date: Available online 14 January 2019Source: Academic RadiologyAuthor(s): Houman Sotoudeh, Asim K. Bag, Michael David BrooksRationale and ObjectivesRegarding the most recent ischemic stroke treatment guideline, perfusion imaging has been recommended up to 24 hours after initial symptoms of brain infarction. Patients with a significant amount of salvageable peri-infarct ischemia and no contraindications benefit from delayed thrombolysis and intra-arterial thrombectomy. This approach causes increasingly more CT perfusion to be done in the subacute phase of ischemic stroke. CT perfusion findings in this “su...
Source: Academic Radiology - January 15, 2019 Category: Radiology Source Type: research