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Academic Radiology

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https://www.readbyqxmd.com/read/28807589/differences-in-texture-analysis-parameters-between-active-alveolitis-and-lung-fibrosis-in-chest-ct-of-patients-with-systemic-sclerosis-a-feasibility-study
#1
Christopher Kloth, Anya C Blum, Wolfgang M Thaiss, Heike Preibsch, Hendrik Ditt, Rainer Grimmer, Jan Fritz, Konstantin Nikolaou, Hans Bösmüller, Marius Horger
RATIONALE AND OBJECTIVES: This study aimed to determine the diagnostic aid of computed tomography (CT) features for the differentiation of active alveolitis and fibrosis using a CT texture analysis (CTTA) prototype and CT densitometry in patients with systemic sclerosis (SSc) using ancillary high-resolution computed tomography (HRCT) features and their longitudinal course as standard of reference. MATERIALS AND METHODS: We retrospectively analyzed thin-slice noncontrast chest CT image data of 43 patients with SSc (18 men, mean age 51...
August 11, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28800952/the-best-single-measurement-for-assessing-splenomegaly-in-patients-with-cirrhotic-liver-morphology
#2
Zachary Nuffer, Thomas Marini, Andrey Rupasov, Stephen Kwak, Shweta Bhatt
RATIONALE AND OBJECTIVES: There is little agreement within the radiology literature as to the best single measurement for assessing splenomegaly. In this study, we evaluate the correlation of multiple unidirectional measurements of the spleen with splenic volume in patients with cirrhotic liver morphology on computed tomography (CT). MATERIALS AND METHODS: Splenic volume was retrospectively calculated from CT examinations of 179 adult patients, 47 of whom were approved as renal donors, and 132 of whom were referred for various other indications, and were found to have cirrhotic liver morphology on CT...
August 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28800951/evaluation-of-a-high-concentrated-contrast-media-injection-protocol-in-combination-with-low-tube-current-for-dose-reduction-in-coronary-computed-tomography-angiography-a-randomized-two-center-prospective-study
#3
Yibo Sun, Yanqing Hua, Mingpeng Wang, Dingbiao Mao, Xiu Jin, Cheng Li, Kailei Shi, Jianrong Xu
RATIONALE AND OBJECTIVES: The study aimed to prospectively evaluate the radiation dose reduction potential and image quality (IQ) of a high-concentration contrast media (HCCM) injection protocol in combination with a low tube current (mAs) in coronary computed tomography angiography. MATERIALS AND METHODS: Eighty-one consecutive patients (mean age: 62 years; 34 females; body mass index: 18-31) were included and randomized-assigned into two groups. All computed tomography (CT) examinations were performed in two groups with the same tube voltage (100 kV), flow rate of contrast medium (5...
August 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28800950/added-value-of-bone-subtraction-in-dual-energy-digital-radiography-in-the-detection-of-pneumothorax-impact-of-reader-expertise-and-medical-specialty
#4
Ayla Urbaneja, Gauthier Dodin, Gabriela Hossu, Omar Bakour, Rachid Kechidi, Pedro Gondim Teixeira, Alain Blum
RATIONALE AND OBJECTIVES: This study aimed to determine the value of dual-energy thoracic radiography in the diagnosis of pneumothorax considering the reader's experience. MATERIALS AND METHODS: Forty patients with a suspected pneumothorax, imaged with dual-energy chest radiographs, were divided into two groups: those with pneumothorax as the final diagnosis (n = 19) and those without (n = 21). The images were analyzed by 36 readers (5 interns, 16 residents, 15 senior physicians) for the presence or absence of pneumothorax during three readout sessions at 2-week intervals: standard images alone (session 1), dual-energy images with bone subtraction alone (session 2), and a combination of the two (session 3)...
August 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28784412/the-incidence-of-totally-implantable-venous-access-devices-insertion-and-the-associated-abnormalities-in-patients-with-cancer-revealed-in-18-f-fdg-pet-ct-imaging
#5
Pan-Fu Kao, Jui-Hung Weng, Yeu-Sheng Tyan, Shun-Fa Yang, Thomas Chang-Yao Tsao
RATIONALE AND OBJECTIVES: The purpose of this retrospective study was to evaluate the incidence of totally implantable venous access devices, also called ports, implantation and the associated abnormalities in 2-[(18)F]-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography-computed tomography (PET-CT) images for patients with cancer, and to determine the percentage of abnormalities identified in the original reports. MATERIALS AND METHODS: The study aimed to perform a retrospective review of all FDG PET-CT imaging in a 3-year period...
August 4, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28780173/validation-of-feasibility-of-magnetic-resonance-imaging-for-the-measurement-of-depth-of-tumor-invasion-in-distal-bile-duct-cancer-according-to-the-new-american-joint-committee-on-cancer-staging-system
#6
Na Yeon Han, Joo Young Kim, Min Ju Kim, Beom Jin Park, Deuk Jae Sung, Ki Choon Sim, Sung Bum Cho, Dong Sik Kim
RATIONALE AND OBJECTIVES: This study aimed to develop and validate a method for measuring the depth of tumor invasion (DoI) using magnetic resonance imaging (MRI) and to investigate the diagnostic performance of the measured DoI for stratifying tumor (T) classification in patients with distal bile duct cancer according to the new American Joint Committee on Cancer staging system. MATERIALS AND METHODS: Fifty-four patients (30 men and 24 women; age range, 43-81 years) with distal bile duct cancer were enrolled...
August 2, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28778512/ct-image-based-decision-support-system-for-categorization-of-liver-metastases-into-primary-cancer-sites-initial-results
#7
Avi Ben-Cohen, Eyal Klang, Idit Diamant, Noa Rozendorn, Stephen P Raskin, Eli Konen, Michal Marianne Amitai, Hayit Greenspan
RATIONALE AND OBJECTIVES: This study aimed to provide decision support for the human expert, to categorize liver metastases into their primary cancer sites. Currently, once a liver metastasis is detected, the process of finding the primary site is challenging, time-consuming, and requires multiple examinations. The proposed system can support the human expert in localizing the search for the cancer source by prioritizing the examinations to probable cancer sites. MATERIALS AND METHODS: The suggested method is a learning-based approach, using computed tomography (CT) data as the input source...
August 1, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28778511/differentiation-between-luminal-a-and-luminal-b-breast-cancer-using-intravoxel-incoherent-motion-and-dynamic-contrast-enhanced-magnetic-resonance-imaging
#8
Hiroko Kawashima, Tosiaki Miyati, Naoki Ohno, Masako Ohno, Masafumi Inokuchi, Hiroko Ikeda, Toshifumi Gabata
RATIONALE AND OBJECTIVES: The study aimed to investigate whether intravoxel incoherent motion (IVIM) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) can differentiate luminal-B from luminal-A breast cancer MATERIALS AND METHODS: Biexponential analyses of IVIM and DCE MRI were performed using a 3.0-T MRI scanner, involving 134 patients with 137 pathologically confirmed luminal-type invasive breast cancers. Luminal-type breast cancer was categorized as luminal-B breast cancer (LBBC, Ki-67 ≧ 14%) or luminal-A breast cancer (LABC, Ki-67 < 14%)...
August 1, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28760364/does-the-oral-mock-board-examination-still-have-a-role-as-a-training-tool
#9
Colin Strickland, Alexandria Jensen, Tatum McArthur
RATIONALE AND OBJECTIVES: The American Board of Radiology has adopted a new standardized board examination and the traditional oral examination has been abandoned. Although many programs have changed their educational efforts to reflect the new test format, some faculty members and residents have expressed a desire to keep an oral examination as a component of education and evaluation in radiology residency programs. MATERIALS AND METHODS: An oral comprehensive examination including all the appropriate subspecialties was administered to each second year and third year resident in our training program by faculty members...
July 28, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28760363/strategies-for-decreasing-screening-mammography-recall-rates-while-maintaining-performance-metrics
#10
Lisa A Mullen, Babita Panigrahi, Jacqueline Hollada, Benita Panigrahi, Eniola T Falomo, Susan C Harvey
RATIONALE AND OBJECTIVE: This study aimed to determine the impact of interventions designed to reduce screening mammography recall rates on screening performance metrics. MATERIALS AND METHODS: We assessed baseline performance for full-field digital mammography (FFDM) and digital breast tomosynthesis mammography (DBT) for a 3-year period before intervention. The first intervention sought to increase awareness of recalls from screening mammography. Breast imagers discussed their perceptions regarding screening recalls and were required to review their own recalled cases, including outcomes of diagnostic evaluation and biopsy...
July 28, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28760362/the-addition-of-automated-breast-ultrasound-to-mammography-in-breast-cancer-screening-decreases-stage-at-diagnosis
#11
Ian Grady, Nailya Chanisheva, Tony Vasquez
RATIONALE AND OBJECTIVES: This study aimed to determine the best screening strategy using automated whole-breast ultrasound and mammography in women with increased breast density or an elevated risk of breast cancer. MATERIALS AND METHODS: After an institutional review board waiver was obtained, a retrospective review of 122 cancer cases diagnosed in 3435 women with increased breast density or an elevated risk of breast cancer, screened with mammography and supplemental automated whole-breast ultrasound, was performed...
July 28, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28756085/differentiation-of-intrahepatic-cholangiocellular-carcinoma-from-hepatocellular-carcinoma-in-the-cirrhotic-liver-using-contrast-enhanced-mr-imaging
#12
Georg J Wengert, Pascal A T Baltzer, Hubert Bickel, Patrick Thurner, Julia Breitenseher, Mathias Lazar, Matthias Pones, Markus Peck-Radosavljevic, Florian Hucke, Ahmed Ba-Ssalamah
RATIONALE AND OBJECTIVES: This study aimed to investigate the potential of contrast-enhanced magnetic resonance imaging features to differentiate between mass-forming intrahepatic cholangiocellular carcinoma (ICC) and hepatocellular carcinoma (HCC) in cirrhotic livers. MATERIALS AND METHODS: This study, performed between 2001 and 2013, included 64 baseline magnetic resonance imaging examinations with pathohistologically proven liver cirrhosis, presenting with either ICC (n = 32) or HCC (n = 32) tumors...
July 26, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28754210/now-you-see-it-but-would-you-later-examining-the-mechanisms-of-satisfaction-of-search-in-the-fatigued-radiologist
#13
EDITORIAL
Tessa S Cook
No abstract text is available yet for this article.
July 25, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28754209/automated-volumetric-mammographic-breast-density-measurements-may-underestimate-percent-breast-density-for-high-density-breasts
#14
Kareem Rahbar, Albert Gubern-Merida, James T Patrie, Jennifer A Harvey
RATIONALE AND OBJECTIVES: The purpose of this study was to evaluate discrepancy in breast composition measurements obtained from mammograms using two commercially available software methods for systematic trends in overestimation or underestimation compared to magnetic resonance-derived measurements. MATERIALS AND METHODS: An institutional review board-approved, Health Insurance Portability and Accountability Act-compliant retrospective study was performed to calculate percent breast density (PBD) by quantifying fibroglandular volume and total breast volume derived from magnetic resonance imaging (MRI) segmentation and mammograms using two commercially available software programs (Volpara and Quantra)...
July 25, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28739144/contrast-enhancement-in-breast-cancer-and-background-mammary-gland-tissue-during-the-super-early-phase-of-dynamic-breast-magnetic-resonance-imaging
#15
Tetsuya Tomida, Atsushi Urikura, Takayoshi Uematsu, Kensei Shirata, Yoshihiro Nakaya
RATIONALE AND OBJECTIVES: We aimed to compare the contrast enhancement between tumor and mammary-gland tissue to distinguish lesions in the super-early phase, during which minimal contrast media uptake is observed in mammary-gland tissue. MATERIALS AND METHODS: Dynamic magnetic resonance imaging, including the super-early phase with bolus tracking (BT) method (to determine the optimal imaging start time), was performed by using identical parameters to obtain transverse fat-suppressed T1-weighted images of both breasts...
July 21, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28732780/corrigendum-to-anonymity-and-electronics-adapting-preparation-for-radiology-resident-examination-acad-radiol-2017-24-657-663
#16
Teresa Chapman, Janet R Reid, Erin E O'Connor
No abstract text is available yet for this article.
July 18, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28728854/potential-use-of-american-college-of-radiology-bi-rads-mammography-atlas-for-reporting-and-assessing-lesions-detected-on-dedicated-breast-ct-imaging-preliminary-study
#17
Hae Kyoung Jung, Cherie M Kuzmiak, Keum Won Kim, Na Mi Choi, Hye Jeong Kim, Eun Lee Langman, Sora Yoon, Doreen Steen, Donglin Zeng, Fei Gao
RATIONALE AND OBJECTIVES: Dedicated breast computed tomography (DBCT) is an emerging and promising modality for breast lesions. The objective of this study was to evaluate the potential use of applying the BI-RADS Mammography Atlas 5th Edition for reporting and assessing breast lesions on DBCT. Currently, no atlas exists for DBCT. MATERIALS AND METHODS: Four radiologists trained in breast imaging were recruited in this institutional review board-approved, Health Insurance Portability and Accountability Act-compliant study...
July 17, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28711443/regional-distribution-of-pulmonary-blood-volume-with-dual-energy-computed-tomography-results-in-42-subjects
#18
Paul Felloni, Alain Duhamel, Jean-Baptiste Faivre, Jessica Giordano, Suonita Khung, Valérie Deken, Jacques Remy, Martine Remy-Jardin
RATIONALE AND OBJECTIVES: The noninvasive approach of lung perfusion generated from dual-energy computed tomography acquisitions has entered clinical practice. The purpose of this study was to analyze the regional distribution of iodine within distal portions of the pulmonary arterial bed on dual-source, dual-energy computed tomography examinations in a cohort of subjects without cardiopulmonary pathologies. MATERIALS AND METHODS: The study population included 42 patients without cardiorespiratory disease, enabling quantitative and qualitative analysis of pulmonary blood volume after administration of a 40% contrast agent...
July 12, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28705686/imaging-features-of-patients-undergoing-active-surveillance-for-ductal-carcinoma-in-situ
#19
Lars J Grimm, Sujata V Ghate, E Shelley Hwang, Mary Scott Soo
RATIONALE AND OBJECTIVES: The aim of this study was to describe the imaging appearance of patients undergoing active surveillance for ductal carcinoma in situ (DCIS). MATERIALS AND METHODS: We retrospectively identified 29 patients undergoing active surveillance for DCIS from 2009 to 2014. Twenty-two patients (group 1) refused surgery or were not surgical candidates. Seven patients (group 2) enrolled in a trial of letrozole and deferred surgical excision for 6-12 months...
July 10, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28693758/the-u-s-online-news-coverage-of-mammography-based-on-a-google-news-search
#20
REVIEW
Leng Leng Young Lin, Andrew B Rosenkrantz
RATIONALE AND OBJECTIVES: To characterize online news coverage relating to mammography, including articles' stance toward screening mammography. MATERIALS AND METHODS: Google News was used to search U.S. news sites over a 9-year period (2006-2015) based on the search terms "mammography" and "mammogram." The top 100 search results were recorded. Identified articles were manually reviewed. RESULTS: The top 100 news articles were from the following sources: local news outlet (50%), national news outlet (24%), nonimaging medical source (13%), entertainment or culture news outlet (6%), business news outlet (4%), peer-reviewed journal (1%), and radiology news outlet (1%)...
July 7, 2017: Academic Radiology
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