SUVmax of 18FDG PET/CT Predicts Histological Grade of Lung Adenocarcinoma
Publication date: Available online 26 February 2020Source: Academic RadiologyAuthor(s): Xiao-Yan Sun, Tian-Xiang Chen, Cheng Chang, Hao-Hua Teng, Chun Xie, Mao-Mei Ruan, Bei Lei, Liu Liu, Li-Hua Wang, Yun-Hai Yang, Wen-Hui Xie (Source: Academic Radiology)
Source: Academic Radiology - February 27, 2020 Category: Radiology Source Type: research

Corona Virus International Public Health Emergencies: Implications for Radiology Management
Publication date: Available online 26 February 2020Source: Academic RadiologyAuthor(s): Han-Wen Zhang, Juan Yu, Hua-Jian Xu, Yi Lei, Zu-Hui Pu, Wei-Cai Dai, Fan Lin, Yu-Li Wang, Xiao-Liu Wu, Li-Hong Liu, Min Li, Yong-Qian Mo, Hong Zhang, Si-Ping Luo, Huan Chen, Gui-Wen Lyu, Zhao-Guang Zhou, Wei-Min Liu, Xiao-Lei Liu, Hai-Yan Song (Source: Academic Radiology)
Source: Academic Radiology - February 27, 2020 Category: Radiology Source Type: research

Computed Tomography-Guided Radiofrequency Ablation of Osteoid Osteoma in Atypical Sites: Efficacy and Safety in a Large Case Series
Publication date: Available online 25 February 2020Source: Academic RadiologyAuthor(s): Gamal Eldine Niazi, Mohammad Abd Alkhalik Basha, Walid Feisal Ali Elsharkawi, Mohamed M.A. Zaitoun (Source: Academic Radiology)
Source: Academic Radiology - February 26, 2020 Category: Radiology Source Type: research

The Role of 18F-FDG PET/MRI in the Assessment of Primary Intrahepatic Neoplasms
Publication date: Available online 25 February 2020Source: Academic RadiologyAuthor(s): Filiz Çelebi, Kourosh Yaghouti, Emetullah Cindil, Gülen Bülbül Dogusoy, Yaman Tokat, Cem Balcı (Source: Academic Radiology)
Source: Academic Radiology - February 26, 2020 Category: Radiology Source Type: research

Are Women Disproportionately Represented in Education Compared to Other Roles in Academic Radiology?
Publication date: Available online 26 February 2020Source: Academic RadiologyAuthor(s): Emily M. Webb, Kimberly G. Kallianos, Maya Vella, Christopher M. Straus, Matthew D. Bucknor, Javier Galvan, Leslie M. Scoutt (Source: Academic Radiology)
Source: Academic Radiology - February 26, 2020 Category: Radiology Source Type: research

Pancreatic Neuroendocrine Neoplasms: CT Spectral Imaging in Grading
Publication date: Available online 26 February 2020Source: Academic RadiologyAuthor(s): Wei-Xia Li, Fei Miao, Xue-Qin Xu, Jing Zhang, Zhi-Yuan Wu, Ke-Min Chen, Fu-Hua Yan, Xiao-Zhu Lin (Source: Academic Radiology)
Source: Academic Radiology - February 26, 2020 Category: Radiology Source Type: research

Prospective Imaging Trial Assessing Gadoteridol Retention in the Deep Brain Nuclei of Women Undergoing Breast MRI
Publication date: Available online 24 February 2020Source: Academic RadiologyAuthor(s): Colleen H. Neal, Akshat C. Pujara, Ashok Srinivasan, Thomas L. Chenevert, Dariya Malyarenko, Shokoufeh Khalatbari, Mark A. Helvie, Mitra Noroozian, Jacqueline S. Jeruss, Mark D. Pearlman, Matthew S. Davenport (Source: Academic Radiology)
Source: Academic Radiology - February 25, 2020 Category: Radiology Source Type: research

Silent MRI: A Future of Less Intrusive and More Diagnostic Scanning
Publication date: Available online 24 February 2020Source: Academic RadiologyAuthor(s): John Kim (Source: Academic Radiology)
Source: Academic Radiology - February 24, 2020 Category: Radiology Source Type: research

Utility of Artificial Intelligence Tool as a Prospective Radiology Peer Reviewer — Detection of Unreported Intracranial Hemorrhage
ConclusionOur study demonstrates that an AI solution can help radiologists to diagnose ICH and thus decrease the error rate. AI solution can serve as a prospective peer review tool for non-contrast head CT scans to identify ICH and thus minimize false negatives. (Source: Academic Radiology)
Source: Academic Radiology - February 24, 2020 Category: Radiology Source Type: research

Whole-Lesion DCE-MRI Intensity Histogram Analysis for Diagnosis in Patients with Suspected Lung Cancer
ConclusionThis initial study found that DCE-MRI CoV was independently associated with malignancy in patients with suspected lung cancer. CoV has the potential to help diagnose indeterminate pulmonary lesions and may complement TIC-derived DCE-MRI metrics. Further studies are warranted to validate the diagnostic value of DCE-MRI intensity histogram analysis. (Source: Academic Radiology)
Source: Academic Radiology - February 24, 2020 Category: Radiology Source Type: research

Optimizing Contrast-Enhanced Thoracoabdominal CT in Patients During Extracorporeal Membrane Oxygenation
ConclusionHigh-quality CT and CT angiography can be achieved in ECMO patients of different ages and clinical issues considering the type of ECMO circulation, ECMO cannulation sites, preferred contrast phase and anatomy of interest. CT diagnoses affect the treatment of the patient. (Source: Academic Radiology)
Source: Academic Radiology - February 23, 2020 Category: Radiology Source Type: research

Effects of Patient Size and Radiation Dose on Iodine Quantification in Dual-Source Dual-Energy CT
ConclusionReliable iodine quantification can be achieved using dual-source CT, but the result can be affected by patient size and dose rate. In large patients, biases may occur due to the beam-hardening and the photon-starvation effects, in which case higher dose rate and higher kVp are recommended to minimize these effects. (Source: Academic Radiology)
Source: Academic Radiology - February 23, 2020 Category: Radiology Source Type: research

Hindsight Bias—A Tricky Concept to Study in Radiology
Publication date: Available online 21 February 2020Source: Academic RadiologyAuthor(s): Elizabeth A. Krupinski (Source: Academic Radiology)
Source: Academic Radiology - February 23, 2020 Category: Radiology Source Type: research

Resident Physicians' Perceptions of Diagnostic Radiology and the Declining Interest in the Specialty
Publication date: Available online 20 February 2020Source: Academic RadiologyAuthor(s): Darya Kurowecki, Stefanie Y. Lee, Sandra Monteiro, Karen FinlayRationale and ObjectivesThe relative competitiveness of radiology and the number of first-choice applicants to diagnostic radiology have steadily declined over the past decade. The purpose of this study was to identify factors contributing to the declining interest in diagnostic radiology as a career and to explore factors affecting specialty choice.Materials and MethodsA retrospective survey was distributed to resident physicians at a single academic center between July and...
Source: Academic Radiology - February 21, 2020 Category: Radiology Source Type: research

External Validation of a Deep Learning Model for Predicting Mammographic Breast Density in Routine Clinical Practice
Publication date: Available online 20 February 2020Source: Academic RadiologyAuthor(s): Brian N. Dontchos, Adam Yala, Regina Barzilay, Justin Xiang, Constance D. LehmanRationale and ObjectivesFederal legislation requires patient notification of dense mammographic breast tissue because increased density is a marker of breast cancer risk and can limit the sensitivity of mammography. As previously described, we clinically implemented our deep learning model at the academic breast imaging practice where the model was developed with high clinical acceptance. Our objective was to externally validate our deep learning model on ra...
Source: Academic Radiology - February 21, 2020 Category: Radiology Source Type: research

Detection of Mice Colorectal Tumors by Endoluminal Ultrasound Biomicroscopic Images and Quantification of Image Augmented Gray Values Following Injection of VEGFR-2 Targeted Contrast Agent
Publication date: Available online 15 February 2020Source: Academic RadiologyAuthor(s): Rossana Colla Soletti, Marcelo Alexandre Pinto de Britto, Helena Lobo Borges, João Carlos MachadoRationale and ObjectivesUltrasound biomicroscopy (UBM) is a noninvasive imaging technique that can be applied in detecting colonic tumors and, once associated with an ultrasound contrast agent (UCA), can identify the molecular expression of cancer-related biomarkers, such as the vascular endothelial growth factor receptor 2 (VEGFR-2). The present work aimed to detect colonic tumors and quantify augmented gray values of endoluminal UBM...
Source: Academic Radiology - February 15, 2020 Category: Radiology Source Type: research

Comments on “Value of TSCT Features for Differentiating Preinvasive and Minimally Invasive Adenocarcinoma From Invasive Adenocarcinoma Presenting as Subsolid Nodules Smaller Than 3 cm”
Publication date: March 2020Source: Academic Radiology, Volume 27, Issue 3Author(s): Ge Wen, Yongmei Deng, Fuchao Liu, Xiaojia Wu (Source: Academic Radiology)
Source: Academic Radiology - February 15, 2020 Category: Radiology Source Type: research

Clinical Applications of DSC-MRI Parameters Assess Angiogenesis and Differentiate Malignant From Benign Soft Tissue Tumors in Limbs
Publication date: March 2020Source: Academic Radiology, Volume 27, Issue 3Author(s): Yitong Bian, Ping Jin, Yanliang Wang, Xiaocheng Wei, Yongqian Qiang, Gang Niu, Guohong Jin, Jian YangObjectiveTo investigate the correlation between dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) parameters and angiogenesis and to explore prospectively the feasibility of using DSC-MRI to differentiate malignant from benign soft tissue tumors (STTs) in limbs.MethodsThis prospective study included 33 patients with STTs in limbs who underwent DSC-MRI after bolus Gd-DTPA infusion. All STTs were confirmed by pathological e...
Source: Academic Radiology - February 15, 2020 Category: Radiology Source Type: research

Response to Dr. Cory Pfeifer
Publication date: March 2020Source: Academic Radiology, Volume 27, Issue 3Author(s): Richard B. Gunderman (Source: Academic Radiology)
Source: Academic Radiology - February 15, 2020 Category: Radiology Source Type: research

Differentiation between Luminal A and B Molecular Subtypes of Breast Cancer Using Pharmacokinetic Quantitative Parameters with Histogram and Texture Features on Preoperative Dynamic Contrast-Enhanced Magnetic Resonance Imaging
ConclusionPharmacokinetic quantitative parameters with histogram and texture features obtained from DCE-MRI are associated with the molecular subtypes of breast cancer, and may serve as potential imaging biomarkers to differentiate between the luminal A and luminal B molecular subtypes. (Source: Academic Radiology)
Source: Academic Radiology - February 15, 2020 Category: Radiology Source Type: research

Patient-based Performance Assessment for Pediatric Abdominal CT: An Automated Monitoring System Based on Lesion Detectability and Radiation Dose
Publication date: Available online 13 February 2020Source: Academic RadiologyAuthor(s): Tyler Lacy, Aiping Ding, Vivian Minkemeyer, Donald Frush, Ehsan SameiRationale and ObjectiveTo deploy an automated tool for evaluating pediatric body computed tomography (CT) performance utilizing metrics of radiation dose and image quality for the task of liver lesion detection.Materials and MethodsThis IRB approved retrospective investigation used 507 IV-contrast-enhanced abdominopelvic CT scans of pediatric patients (
Source: Academic Radiology - February 14, 2020 Category: Radiology Source Type: research

The Utility of Modified Dixon Turbo Spin Echo Shoulder Magnetic Resonance Arthrography in Assessing Rotator Cuff Disorder and Evaluating the Rotator Cuff Muscles
ConclusionsThe mDixon TSE T1W sequence is a good alternative to conventional sequences in shoulder MRA for evaluating rotator cuff pathology. Furthermore, this sequence provides information on the size and fat infiltration of rotator cuff muscles. (Source: Academic Radiology)
Source: Academic Radiology - February 14, 2020 Category: Radiology Source Type: research

Clinical Value of 18F-FDG PET/CT in Prediction of Visceral Pleural Invasion of Subsolid Nodule Stage I Lung Adenocarcinoma
ConclusionDistance between the nodule and pleura and SUVmax are independent predictors of VPI in SSN stage I lung adenocarcinoma. Further, combining these factors improves their predictive ability. (Source: Academic Radiology)
Source: Academic Radiology - February 14, 2020 Category: Radiology Source Type: research

Noninterpretive Uses of Artificial Intelligence in Radiology
Publication date: Available online 12 February 2020Source: Academic RadiologyAuthor(s): Michael L. Richardson, Elisabeth R. Garwood, Yueh Lee, Matthew D. Li, Hao S. Lo, Arun Nagaraju, Xuan V. Nguyen, Linda Probyn, Prabhakar Rajiah, Jessica Sin, Ashish P. Wasnik, Kali XuWe deem a computer to exhibit artificial intelligence (AI) when it performs a task that would normally require intelligent action by a human. Much of the recent excitement about AI in the medical literature has revolved around the ability of AI models to recognize anatomy and detect pathology on medical images, sometimes at the level of expert physicians. Ho...
Source: Academic Radiology - February 13, 2020 Category: Radiology Source Type: research

Aligning the Implicit Curriculum with the Explicit Curriculum in Radiology
Publication date: Available online 12 February 2020Source: Academic RadiologyAuthor(s): Keith D. Herr, Elizabeth George, Vikas Agarwal, Colin D. McKnight, Liwei Jiang, Anugayathri Jawahar, Mini Pakkal, Adam Ulano, Dhakshinamoorthy GaneshanPhysician education occurs through two mechanisms that operate in tandem: the explicit and the implicit curriculum. The explicit, or formal, curriculum is the official version that is usually taken as the one-and-only curriculum and which is detailed in official documentation; however, an implicit curriculum exists, comprised of subtle messaging about professional norms, values, and belie...
Source: Academic Radiology - February 13, 2020 Category: Radiology Source Type: research

Prediction of Platinum-based Chemotherapy Response in Advanced High-grade Serous Ovarian Cancer: ADC Histogram Analysis of Primary Tumors
ConclusionPretreatment ADC histogram analysis of primary tumors has the potential to allow prediction of response to platinum-based chemotherapy in patients with advanced HGSOC. (Source: Academic Radiology)
Source: Academic Radiology - February 13, 2020 Category: Radiology Source Type: research

The “Look Ahead” Technique: A Novel Way to Engage Medical Students in the Radiology Reading Room
Publication date: Available online 13 February 2020Source: Academic RadiologyAuthor(s): Jennifer Huang, Brian Bingham, Martin JordanovRationale and ObjectivesEngaging medical students during a radiology course can be challenging. We sought a way to actively engage students with live cases, allow them to interact with the picture archiving and communication system workstation, and experience what it is like to be a radiologist.Materials and MethodsMedical students enrolled in one of three radiology courses between May 2016 and June 2017 were eligible. The “Look Ahead” technique is as follows: a preceptor identif...
Source: Academic Radiology - February 13, 2020 Category: Radiology Source Type: research

Peer Learning Through Multi-Institutional Case Conferences: Abdominal and Cardiothoracic Radiology Experience
ConclusionOur model is feasible and effective compared to traditional peer review. The cases selected are deliberate and focused on quality improvement and/or education. We harness online engagement, specifically social media presence, which has opened new opportunities to educate our peers and reach a global audience, including the nonradiologic community, to learn about radiology and unique practices. (Source: Academic Radiology)
Source: Academic Radiology - February 13, 2020 Category: Radiology Source Type: research

Magnetic Resonance Texture Analysis in Alzheimer's disease
Publication date: Available online 10 February 2020Source: Academic RadiologyAuthor(s): Jia-Hui Cai, Yuan He, Xiao-Lin Zhong, Hao Lei, Fang Wang, Guang-Hua Luo, Heng Zhao, Jin-Cai LiuTexture analysis is an emerging field that allows mathematical detection of changes in MRI signals that are not visible among image pixels. Alzheimer's disease, a progressive neurodegenerative disease, is the most common cause of dementia. Recently, multiple texture analysis studies in patients with Alzheimer's disease have been performed. This review summarizes the main contributors to Alzheimer's disease-associated cognitive decline, present...
Source: Academic Radiology - February 11, 2020 Category: Radiology Source Type: research

Evaluation of Significant Coronary Artery Disease Based on CT Fractional Flow Reserve and Plaque Characteristics Using Random Forest Analysis in Machine Learning
ConclusionCombined assessment of anatomical CCTA features and functional CT-FFR was helpful for detecting lesion-specific ischemia. (Source: Academic Radiology)
Source: Academic Radiology - February 11, 2020 Category: Radiology Source Type: research

Breaking the Stereotype: Interventions Aimed at Changing Medical Student Misperceptions of Radiology and Increasing the Female Match Rate
Publication date: Available online 10 February 2020Source: Academic RadiologyAuthor(s): Victoria Podsiadlo, Carolynn M. DeBenedectisBackgroundAlthough nearly half of medical students are female there is still a significant discrepancy in the number of women specializing in radiology. In 2013, 26.9% of US diagnostic radiology residents were female, a 1% increase in 20 years from 25.5% in 1990.PurposeThe purpose of this project is to determine the effectiveness of the interventions implemented at a single medical school at decreasing negative attitudes about radiology held by medical students of all genders and whether those...
Source: Academic Radiology - February 11, 2020 Category: Radiology Source Type: research

Improved Depictions of the Anterior Choroidal Artery and Thalamoperforating Arteries on 3D-CTA Images Using Model-based Iterative Reconstruction
Publication date: Available online 7 February 2020Source: Academic RadiologyAuthor(s): Naoko Hamaguchi, Noriyuki Fujima, Akiyoshi Hamaguchi, Shuuichi KoderaRationale and ObjectivesTo evaluate the depictability of intracranial small arteries using high-resolution CTA with model-based iterative reconstruction (MBIR).Materials and MethodsWe retrospectively analyzed 21 patients who underwent brain 3D-CTA. Axial and volume-rendered (VR) images were reconstructed from the 3D-CTA raw data using adaptive statistical image reconstruction (ASIR) and MBIR.As a quantitative assessment, intra-arterial CT values of the ICA and contrast-...
Source: Academic Radiology - February 8, 2020 Category: Radiology Source Type: research

Burnout in Academic Radiologists in the United States
Publication date: Available online 7 February 2020Source: Academic RadiologyAuthor(s): Dhakshinamoorthy Ganeshan, Andrew B Rosenkrantz, Roland L Bassett, Lori Williams, Leon Lenchik, Wei YangRationale and ObjectivesTo assess the prevalence and associated factors of burnout among U.S. academic radiologists.Materials and MethodsAn online survey was sent to the radiologists who were full members of the Association of University Radiologists in December 2018. Burnout was measured using the abbreviated Maslach Burnout Inventory Human Services Survey. Survey respondents were also requested to complete questions on demographics, ...
Source: Academic Radiology - February 8, 2020 Category: Radiology Source Type: research

Analysis of Different Levels of Structured Reporting in Knee Magnetic Resonance Imaging
Publication date: Available online 6 February 2020Source: Academic RadiologyAuthor(s): Kishore Chundru, Alexandra Roudenko, Hien Pham, Carlos L. BenitezRationale and ObjectivesThe aim of this study is to investigate the most appropriate knee MRI report template that not only provides structure and consistency, but also allows enough narrative freedom for the logical organization of findings and improved communication with the orthopedic referral base.Materials and MethodsThree fictitious knee MRI reports were created using templates with different levels of structuring: unstructured free text (FT), structured with headers ...
Source: Academic Radiology - February 7, 2020 Category: Radiology Source Type: research

Impact of Vessel Suppressed-CT on Diagnostic Accuracy in Detection of Pulmonary Metastasis and Reading Time
Publication date: Available online 6 February 2020Source: Academic RadiologyAuthor(s): K. Martini, C. Blüthgen, M. Eberhard, A.L.N. Schönenberger, I. De Martini, F.A. Huber, B.K. Barth, A. Euler, T. FrauenfelderRationale and ObjectivesTo assess if vessel suppression (VS) improves nodule detection rate, interreader agreement, and reduces reading time in oncologic chest computed tomography (CT).Material and MethodsOne-hundred consecutive oncologic patients (65 male; median age 60y) who underwent contrast-enhanced chest CT were retrospectively included. For all exams, additional VS series (ClearRead CT, Riverrain Te...
Source: Academic Radiology - February 7, 2020 Category: Radiology Source Type: research

Impact of Brain Functional Network Properties on Intelligence in Children and Adolescents with Focal Epilepsy: A Resting-state MRI Study
Publication date: Available online 6 February 2020Source: Academic RadiologyAuthor(s): Liu Songjiang, Zhang Tijiang, Liu Heng, Zhang Wenjing, Tao Bo, Song Ganjun, Tian Maoqiang, Lui SuRationale and ObjectiveEpilepsy is a common pediatric disease that often leads to cognitive and intellectual impairments. Here, we explore the reorganized functional networks in children and adolescents with focal epilepsy (CAFE) and analyze the relationship between network reorganization and intellectual deficits to reveal the underlying link between them.Materials and MethodsFifty-four CAFE (6–16 years old; right-handed) and 42 well-m...
Source: Academic Radiology - February 7, 2020 Category: Radiology Source Type: research

CT-Radiomic Approach to Predict G1/2 Nonfunctional Pancreatic Neuroendocrine Tumor
ConclusionRadiomics developed with a combination of nonenhanced and portal venous phases can achieve favorable predictive accuracy for histological grade for G1/G2 NF-pNETs. (Source: Academic Radiology)
Source: Academic Radiology - February 7, 2020 Category: Radiology Source Type: research

Value of High-resolution MRI in Detecting Lymph Node Calcifications in Patients with Rectal Cancer
ConclusionMetastatic nodal calcifications are characteristic imaging findings in rectal cancer. Calcifications are indicated by markedly reduced signal on high-resolution MRI, which will alert radiologists to scrutinize CT for nodal calcifications and aid in the accurate diagnosis of metastatic lymph nodes. (Source: Academic Radiology)
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

Creating Artificial Images for Radiology Applications Using Generative Adversarial Networks (GANs) – A Systematic Review
ConclusionGANs are increasingly studied for various radiology applications. They enable the creation of new data, which can be used to improve clinical care, education and research. (Source: Academic Radiology)
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

Propagation-Based Phase-Contrast CT of the Breast Demonstrates Higher Quality Than Conventional Absorption-Based CT Even at Lower Radiation Dose
ConclusionPB-CT achieves a higher radiological image quality compared to AB-CT even at a considerably lower mean glandular dose. Successful translation of the PB-CT technique for breast cancer imaging can potentially result in improved breast cancer diagnosis. (Source: Academic Radiology)
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

Diagnostic Performance of MR Imaging-based Features and Texture Analysis in the Differential Diagnosis of Ovarian Thecomas/Fibrothecomas and Uterine Fibroids in the Adnexal Area
Publication date: Available online 5 February 2020Source: Academic RadiologyAuthor(s): Chao Wei, Yu-lan Chen, Xin-xiang Li, Nai-yu Li, Yao-yuan Wu, Ting-ting Lin, Chuan-bin Wang, Ping Zhang, Jiang-ning Dong, Yong-qiang YuRationale and ObjectivesTo investigate the value of MRI-based features and texture analysis (TA) in the differential diagnosis between ovarian thecomas/fibrothecomas (OTCA/f-TCAs) and uterine fibroids in the adnexal area (UF-iaas).Materials and MethodsThis retrospective study included 16 OTCA/f-TCA and 37 UF-iaa patients who underwent conventional MRI and DWI between August 2014 and September 2018. Three-d...
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

Erratum to “Impact of Effective Detector Pixel and CT Voxel Size on Accurate Estimation of Blood Volume in Opacified Microvasculature” [Acad Radiol 2019; 26:1410-1416]
Publication date: Available online 5 February 2020Source: Academic RadiologyAuthor(s): Mahya Sheikhzadeh, Andrew J. Vercnocke, Shengzhen Tao, Kishore Rajendran, Shuai Leng, Erik L. Ritman, Cynthia H. McCollough (Source: Academic Radiology)
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

The Usefulness of Bayesian Network in Assessing the Risk of Triple-Negative Breast Cancer
Publication date: Available online 5 February 2020Source: Academic RadiologyAuthor(s): Yun Huang, Chushan Zheng, Xiang Zhang, Ziliang Cheng, Zehong Yang, Yuantao Hao, Jun ShenRationale and ObjectivesTo evaluate a Bayesian network (BN) model learned from epidemiological and clinical information, and various MRI parameters for predicting the risk of triple-negative breast cancer (TNBC).Materials and MethodsFor this retrospective study, 214 women (mean age ± standard deviation, 50.5±10.6 years) with breast cancer were included between April 2016 and April 2018. All patients underwent MRI, including dynamic contr...
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

Transcatheter Intraarterial Perfusion MRI Approaches to Differentiate Reversibly Electroporated Penumbra From Irreversibly Electroporated Zones in Rabbit Liver
Publication date: Available online 6 February 2020Source: Academic RadiologyAuthor(s): Liang Pan, Chong Sun, Kang Zhou, Matteo Figini, Bin Wang, Junjie Shangguan, Su Hu, Jia Yang, Wei Xing, Jian Wang, Yury Velichko, Vahid Yaghmai, Zhuoli ZhangRationale and ObjectivesTo investigate whether transcatheter intraarterial perfusion (TRIP) magnetic resonance imaging (MRI) can differentiate reversible electroporation (RE) zones from irreversible electroporation (IRE) zones immediately after IRE procedure in the rabbit liver.Materials and MethodsAll studies were approved by the institutional animal care and use committee and perfor...
Source: Academic Radiology - February 6, 2020 Category: Radiology Source Type: research

Receiver Operating Characteristic (ROC) Analysis of Image Search-and-Localize Tasks
ConclusionThe ROC curve predictive of clinical performance cannot be estimated from reader ROC data alone because it is a missing data problem, and is between the case-based ROC curve where readers are not penalized for not correctly identifying known lesions and the lesion-based ROC curve where penalty applies. The lesion-based ROC curve is the LROC curve proposed by Starr et al. and can be estimated via ML estimation. (Source: Academic Radiology)
Source: Academic Radiology - February 5, 2020 Category: Radiology Source Type: research

Competency Based Medical Education—Towards the Development of a Standardized Pediatric Radiology Testing Module
Publication date: Available online 3 February 2020Source: Academic RadiologyAuthor(s): Denise Castro, Joseph Yang, Mary-Louise Greer, Benjamin Kwan, Eric Sauerbrei, Wilma Hopman, Don SoboleskiRationale and ObjectivesTo introduce a process that allows for development of standardized competency based testing modules (CBTM) for evaluating resident progress and competence during their radiology training. This work focuses on the development of pediatric imaging CBTMs to be utilized during general radiology residency.Materials and MethodsMultiple in-patient and ER imaging request audits along with surveys of training programs a...
Source: Academic Radiology - February 4, 2020 Category: Radiology Source Type: research

Eye Shielding During Head CT Scans: Dose Reduction and Image Quality Evaluation
ConclusionArtifacts resulting from the application of eye shields during head CT examinations can be reduced by using topogram-based TCM instead of a fixed tube current. This could be an alternative approach for maintaining image quality in CT scans that do not encompass organ-based TCM. (Source: Academic Radiology)
Source: Academic Radiology - February 4, 2020 Category: Radiology Source Type: research

Relative Regional Air Volume Change Maps at the Acinar Scale Reflect Variable Ventilation in Low Lung Attenuation of COPD patients
Publication date: Available online 3 February 2020Source: Academic RadiologyAuthor(s): Kum Ju Chae, Jiwoong Choi, Gong Yong Jin, Eric A. Hoffman, Archana T. Laroia, Margaret Park, Chang Hyun LeeObjectivesThe purpose of this study was to investigate regional air volume changes at the acinar scale of the lung in chronic obstructive pulmonary disease (COPD) patients using an image registration technique.Materials and MethodsThirty-four emphysema patients and 24 subjects with normal chest CT and pulmonary function test (PFT) results were included in this retrospective study for which informed consent was waived by the institut...
Source: Academic Radiology - February 3, 2020 Category: Radiology Source Type: research

Response to Aung and Liu 19811R1
Publication date: Available online 31 January 2020Source: Academic RadiologyAuthor(s): Richard B. Gunderman (Source: Academic Radiology)
Source: Academic Radiology - February 2, 2020 Category: Radiology Source Type: research

A Radiology-focused Analysis of Transparency and Usability of Top U.S. Hospitals' Chargemasters
ConclusionWhile all top-ranked hospitals had publicly available chargemasters, they rarely provided transparent information to allow patients to determine out-of-pocket costs for advanced diagnostic imaging services. (Source: Academic Radiology)
Source: Academic Radiology - February 2, 2020 Category: Radiology Source Type: research