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Radiology

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https://www.readbyqxmd.com/read/30511912/diagnostic-case-control-versus-diagnostic-cohort-studies-for-clinical-validation-of-artificial-intelligence-algorithm-performance
#1
Seong Ho Park
No abstract text is available yet for this article.
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30511911/ct-manifestations-of-tumor-spread-through-air-spaces-in-lung-adenocarcinoma-different-pathways-toward-common-perspectives
#2
Constance de Margerie-Mellon, Paul A VanderLaan, Alexander A Bankier
No abstract text is available yet for this article.
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30511910/repeat-contrast-medium-administration-for-patients-with-mild-immediate-hypersensitivity-reaction-to-iodinated-contrast-media
#3
Shoko Abe
No abstract text is available yet for this article.
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30511909/comparison-of-upright-digital-breast-tomosynthesis-guided-versus-prone-stereotactic-vacuum-assisted-breast-biopsy
#4
Manisha Bahl, Mary Maunglay, Helen Anne D'Alessandro, Constance D Lehman
Purpose To compare the performance of upright digital breast tomosynthesis (DBT)-guided vacuum-assisted breast biopsy (VABB) with that of prone stereotactic (PS) VABB. Materials and Methods This retrospective review involved consecutive patients who underwent PS VABB from August 2014 to December 2015 and upright DBT-guided VABB from February 2016 to June 2017. Tissue sampling methods were the same for PS and DBT-guided biopsies. Wilcoxon and Pearson χ2 tests were used to compare the groups. Results During the study period, 439 PS VABBs in 408 patients (mean age, 56...
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30511908/pet-in-lymphoma-making-a-difference-in-patients-lives
#5
James A Scott
No abstract text is available yet for this article.
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30511907/effect-of-pet-ct-on-the-management-and-outcomes-of-participants-with-hodgkin-and-aggressive-non-hodgkin-lymphoma-a-multicenter-registry
#6
Ur Metser, Anca Prica, David C Hodgson, Mindaugas Mozuraitis, Maria Eberg, Victor Mak, Bo Green, Amit Singnurkar, Jill Dudebout, Pamela MacCrostie, Noam Tau, Nicole Mittmann, Deanna L Langer
Purpose To determine the relationship of PET/CT staging to the management and outcomes of participants with apparent limited-stage (LS) Hodgkin lymphoma (HL) or aggressive non-HL (ANHL) treated with curative intent. Materials and Methods This prospective multicenter registry included 850 participants (467 men and 383 women; median age, 54.1 years) from nine centers who had LS HL or ANHL on the basis of clinical data and CT, or with equivocal CT for advanced stage, who were considered for curative-intent first-line therapy...
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30511906/quantitative-mri-of-diffuse-liver-disease-current-applications-and-future-directions
#7
William A Curtis, Tyler J Fraum, Hongyu An, Yasheng Chen, Anup S Shetty, Kathryn J Fowler
As radiologic technology advances, quantitative imaging is becoming more prevalent in clinical practice. This article reviews quantitative hepatic MRI, specifically involving fat and iron deposition, by demonstrating how they were iteratively improved. These iterative improvements involved incorporating more knowledge about the physiology of liver disease and MRI physics to reduce the adverse effects caused by confounding factors. The relevant foundations of MRI physics and liver pathophysiology are briefly reviewed, followed by the various improvements made by expanding on this foundational knowledge...
December 4, 2018: Radiology
https://www.readbyqxmd.com/read/30480492/fluorine-18-fdg-pet-ct-and-diffusion-weighted-mri-for-malignant-versus-benign-pulmonary-lesions-a-meta-analysis
#8
Adriano Basso Dias, Matheus Zanon, Stephan Altmayer, Gabriel Sartori Pacini, Natália Henz Concatto, Guilherme Watte, Anderson Garcez, Tan-Lucien Mohammed, Nupur Verma, Tássia Medeiros, Edson Marchiori, Klaus Irion, Bruno Hochhegger
Purpose To perform a meta-analysis of the literature to compare the diagnostic performance of fluorine 18 fluorodeoxyglucose PET/CT and diffusion-weighted (DW) MRI in the differentiation of malignant and benign pulmonary nodules and masses. Materials and Methods Published English-language studies on the diagnostic accuracy of PET/CT and/or DW MRI in the characterization of pulmonary lesions were searched in relevant databases through December 2017. The primary focus was on studies in which joint DW MRI and PET/CT were performed in the entire study population, to reduce interstudy heterogeneity...
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480491/shear-wave-elastography-of-benign-versus-malignant-musculoskeletal-soft-tissue-masses-comparison-with-conventional-us-and-mri
#9
Aniket N Tavare, Abdulrahman M Alfuraih, Elizabeth M A Hensor, Emmanouil Astrinakis, Harun Gupta, Philip Robinson
Purpose To examine if shear-wave elastography (SWE) improves the accuracy of diagnosing soft-tissue masses as benign or malignant compared with US alone or in combination with MRI. Materials and Methods Two hundred six consecutive adult participants (mean age, 57.7 years; range, 18-91 years), including 89 men (median age, 56.0 years; range, 21-91 years) and 117 women (median age, 59.1 years; range, 18-88 years), who were referred for biopsy of a soft-tissue mass were prospectively recruited from December 2015 through March 2017...
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480490/the-rsna-pediatric-bone-age-machine-learning-challenge
#10
Safwan S Halabi, Luciano M Prevedello, Jayashree Kalpathy-Cramer, Artem B Mamonov, Alexander Bilbily, Mark Cicero, Ian Pan, Lucas Araújo Pereira, Rafael Teixeira Sousa, Nitamar Abdala, Felipe Campos Kitamura, Hans H Thodberg, Leon Chen, George Shih, Katherine Andriole, Marc D Kohli, Bradley J Erickson, Adam E Flanders
Purpose The Radiological Society of North America (RSNA) Pediatric Bone Age Machine Learning Challenge was created to show an application of machine learning (ML) and artificial intelligence (AI) in medical imaging, promote collaboration to catalyze AI model creation, and identify innovators in medical imaging. Materials and Methods The goal of this challenge was to solicit individuals and teams to create an algorithm or model using ML techniques that would accurately determine skeletal age in a curated data set of pediatric hand radiographs...
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480489/detection-of-colorectal-hepatic-metastases-is-superior-at-standard-radiation-dose-ct-versus-reduced-dose-ct
#11
Corey T Jensen, Nicolaus A Wagner-Bartak, Lan N Vu, Xinming Liu, Bharat Raval, David Martinez, Wei Wei, Yuan Cheng, Ehsan Samei, Shiva Gupta
Purpose To evaluate colorectal cancer hepatic metastasis detection and characterization between reduced radiation dose (RD) and standard dose (SD) contrast material-enhanced CT of the abdomen and to qualitatively compare between filtered back projection (FBP) and iterative reconstruction algorithms. Materials and Methods In this prospective study (from May 2017 through November 2017), 52 adults with biopsy-proven colorectal cancer and suspected hepatic metastases at baseline CT underwent two portal venous phase CT scans: SD and RD in the same breath hold...
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480488/interreader-variability-of-dynamic-contrast-enhanced-mri-of-recurrent-glioblastoma-the-multicenter-acrin-6677-rtog-0625-study
#12
Daniel P Barboriak, Zheng Zhang, Pratikkumar Desai, Bradley S Snyder, Yair Safriel, Robert C McKinstry, Felix Bokstein, Gregory Sorensen, Mark R Gilbert, Jerrold L Boxerman
Purpose To evaluate factors contributing to interreader variation (IRV) in parameters measured at dynamic contrast material-enhanced (DCE) MRI in patients with glioblastoma who were participating in a multicenter trial. Materials and Methods A total of 18 patients (mean age, 57 years ± 13 [standard deviation]; 10 men) who volunteered for the advanced imaging arm of ACRIN 6677, a substudy of the RTOG 0625 clinical trial for recurrent glioblastoma treatment, underwent analyzable DCE MRI at one of four centers...
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480487/autologous-blood-patch-injection-versus-hydrogel-plug-in-ct-guided-lung-biopsy-a-prospective-randomized-trial
#13
Majid Maybody, Nadim Muallem, Karen T Brown, Chaya S Moskowitz, Meier Hsu, Christina L Zenobi, Marwah Jihad, George I Getrajdman, Constantinos T Sofocleous, Joseph P Erinjeri, Anne M Covey, Lynn A Brody, Hooman Yarmohammadi, Amy R Deipolyi, Yolanda Bryce, William Alago, Robert H Siegelbaum, Jeremy C Durack, Adrian J Gonzalez-Aguirre, Etay Ziv, F Edward Boas, Stephen B Solomon
Purpose To compare the effect of autologous blood patch injection (ABPI) with that of a hydrogel plug on the rate of pneumothorax at CT-guided percutaneous lung biopsy. Materials and Methods In this prospective randomized controlled trial ( https://ClinicalTrials.gov , NCT02224924), a noninferiority design was used for ABPI, with a 10% noninferiority margin when compared with the hydrogel plug, with the primary outcome of pneumothorax rate within 2 hours of biopsy. A type I error rate of 0.05 and 90% power were specified with a target study population of 552 participants (276 in each arm)...
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480486/editor-s-recognition-awards
#14
David A Bluemke
No abstract text is available yet for this article.
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480485/mri-of-recurrent-glioblastoma-reliability-and-reality
#15
Ronald L Wolf
No abstract text is available yet for this article.
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30480484/can-solitary-pulmonary-nodules-be-accurately-characterized-with-diffusion-weighted-mri
#16
Mark L Schiebler
No abstract text is available yet for this article.
November 27, 2018: Radiology
https://www.readbyqxmd.com/read/30457487/detecting-breast-cancers-with-mammography-will-ai-succeed-where-traditional-cad-failed
#17
Manisha Bahl
No abstract text is available yet for this article.
November 20, 2018: Radiology
https://www.readbyqxmd.com/read/30457486/a-decision-analysis-of-follow-up-and-treatment-algorithms-for-nonsolid-pulmonary-nodules
#18
Mark M Hammer, Lauren L Palazzo, Andrew L Eckel, Eduardo M Barbosa, Chung Yin Kong
Purpose To evaluate management strategies and treatment options for patients with ground-glass nodules (GGNs) by using decision-analysis models. Materials and Methods A simulation was developed for 1 000 000 hypothetical patients with GGNs undergoing follow-up per the Lung Imaging Reporting and Data System (Lung-RADS) recommendations. The initial age range was 55-75 years (mean, 64 years). Nodules could grow and develop solid components over time. Clinically significant malignancy rates were calibrated to data from the National Lung Screening Trial...
November 20, 2018: Radiology
https://www.readbyqxmd.com/read/30457485/imaging-of-cancer-immunotherapy-current-approaches-and-future-directions
#19
Mizuki Nishino, Hiroto Hatabu, F Stephen Hodi
Cancer immunotherapy using immune-checkpoint inhibitors has emerged as an effective treatment option for a variety of advanced cancers in the past decade. Because of the distinct mechanisms of immunotherapy that activate the host immunity to treat cancers, unconventional immune-related phenomena are encountered in terms of tumor response and progression, as well as drug toxicity. Imaging plays an important role in objectively characterizing immune-related tumor responses and progression and in detecting and monitoring immune-related adverse events...
November 20, 2018: Radiology
https://www.readbyqxmd.com/read/30457484/virtual-hepatic-venous-pressure-gradient-with-ct-angiography-chess-1601-a-prospective-multicenter-study-for-the-noninvasive-diagnosis-of-portal-hypertension
#20
Xiaolong Qi, Weimin An, Fuquan Liu, Ruizhao Qi, Lei Wang, Yanna Liu, Chuan Liu, Yi Xiang, Jialiang Hui, Zhao Liu, Xingshun Qi, Changchun Liu, Baogang Peng, Huiguo Ding, Yongping Yang, Xiaoshun He, Jinlin Hou, Jie Tian, Zhiwei Li
Purpose To develop and validate a computational model for estimating hepatic venous pressure gradient (HVPG) based on CT angiographic images, termed virtual HVPG, to enable the noninvasive diagnosis of portal hypertension in patients with cirrhosis. Materials and Methods In this prospective multicenter diagnostic trial (ClinicalTrials.gov identifier: NCT02842697), 102 consecutive eligible participants (mean age, 47 years [range, 21-75 years]; 68 men with a mean age of 44 years [range, 21-73 years] and 34 women with a mean age of 52 years [range, 24-75 years]) were recruited from three high-volume liver centers between August 2016 and April 2017...
November 20, 2018: Radiology
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