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Academic Radiology

Drew A Torigian, Judith Green-McKenzie, Xianling Liu, Frances S Shofer, Thomas Werner, Catherine E Smith, Andrew A Strasser, Mateen C Moghbel, Ami H Parekh, Grace Choi, Marcus D Goncalves, Natalie Spaccarelli, Saied Gholami, Prithvi S Kumar, Yubing Tong, Jayaram K Udupa, Clementina Mesaros, Abass Alavi
RATIONALE AND OBJECTIVES: The aim of this study was to assess the feasibility of (18)F-fluorodeoxyglucose (FDG)-positron emission tomography/computed tomography (PET/CT) to systematically detect and quantify differential effects of chronic tobacco use in organs of the whole body. MATERIALS AND METHODS: Twenty healthy male subjects (10 nonsmokers and 10 chronic heavy smokers) were enrolled. Subjects underwent whole-body FDG-PET/CT, diagnostic unenhanced chest CT, mini-mental state examination, urine testing for oxidative stress, and serum testing...
October 18, 2016: Academic Radiology
Matthew H Lee, Andrew J Schemmel, B Dustin Pooler, Taylor Hanley, Tabassum Kennedy, Aaron Field, Douglas Wiegmann, John-Paul J Yu
RATIONALE AND OBJECTIVES: The study aimed to assess perceptions of reading room workflow and the impact separating image-interpretive and nonimage-interpretive task workflows can have on radiologist perceptions of workplace disruptions, workload, and overall satisfaction. MATERIALS AND METHODS: A 14-question survey instrument was developed to measure radiologist perceptions of workplace interruptions, satisfaction, and workload prior to and following implementation of separate image-interpretive and nonimage-interpretive reading room workflows...
October 18, 2016: Academic Radiology
Ravi K Kaza, Evan A Raff, Matthew S Davenport, Shokoufeh Khalatbari
RATIONALE AND OBJECTIVES: To compare Hounsfield unit (HU) data obtained from true-unenhanced (TUE) and virtual-unenhanced (VUE) imaging obtained with a fast kv-switching dual-energy computed tomography (CT) scanner using multimaterial decomposition algorithm. MATERIALS AND METHODS: In this Institutional Review Board-approved, Health Insurance Portability and Accountability Act-compliant, retrospective cohort study, CT scans of 19 patients undergoing multiphasic renal protocol abdominal CT on a fast kv-switching dual-energy CT scanner were reviewed...
October 18, 2016: Academic Radiology
Rebecca Leddy, Madelene Lewis, Susan Ackerman, Jeanne Hill, Paul Thacker, Maria Matheus, Sameer Tipnis, Leonie Gordon
Utilization of a radiology resident-specific quality improvement (QI) program and curriculum based on the Accreditation Council for Graduate Medical Education (ACGME) milestones can enable a program's assessment of the systems-based practice component and prepare residents for QI implementation post graduation. This article outlines the development process, curriculum, QI committee formation, and resident QI project requirements of one institution's designated radiology resident QI program. A method of mapping the curriculum to the ACGME milestones and assessment of resident competence by postgraduate year level is provided...
October 18, 2016: Academic Radiology
Jina Pakpoor
No abstract text is available yet for this article.
October 17, 2016: Academic Radiology
Mafalda Magalhães, Pedro Belo-Oliveira, João Casalta-Lopes, Yessica Costa, Manuela Gonçalo, Paula Gomes, Filipe Caseiro-Alves
RATIONALE AND OBJECTIVES: The aim of this study was to correlate acoustic radiation force impulse (ARFI) imaging velocities with the pathology results and to evaluate the ability of ARFI in distinguishing benign from malignant breast lesions. MATERIALS AND METHODS: B-mode ultrasonography (US) and ARFI were performed in patients with previously diagnosed and selected breast lesions for biopsy. Shear wave velocity (SWV) was measured inside lesions and in the surrounding parenchyma (m/s)...
October 17, 2016: Academic Radiology
Chandni Bhimani, Luna Li, Lydia Liao, Robyn G Roth, Elizabeth Tinney, Pauline Germaine
RATIONALE AND OBJECTIVES: Contrast-enhanced spectral mammography (CESM) uses full field digital mammography with the added benefit of intravenous contrast administration to significantly reduce false-positive and false-negative results and improve specificity while maintaining high sensitivity. For CESM to fulfill its purpose, one should be aware of possible artifacts and other factors which may interfere with image quality, and attention should be taken to minimize these factors. MATERIALS AND METHODS: This pictorial demonstration will depict types of artifacts detected and other factors that interfere with image acquisition in our practice since CESM implementation...
October 17, 2016: Academic Radiology
Takayoshi Yamaguchi, Katsuhiro Ichikawa, Daichi Takahashi, Teppei Sugaya, Jungo Furuya, Keiichi Igarashi
RATIONALE AND OBJECTIVES: We have developed a new contrast enhancement protocol for subtraction coronary computed tomography (SCCTA) requiring a short breath-holding time. In the protocol, test and main boluses were sequentially and automatically injected, and correct timings for pre-contrast and contrast-enhanced scans for main bolus were automatically determined only by the test bolus tracking. Combined with a fixed short main bolus injection for 7 seconds, the breath-holding time was shortened as possible...
October 17, 2016: Academic Radiology
Michael W Cho, Lars J Grimm, Karen S Johnson
RATIONALE AND OBJECTIVES: This study aimed to determine the utility of directed ultrasound and digital mammogram for evaluating focal breast pain in women with different mammographic breast densities. MATERIALS AND METHODS: This institutional review board-approved and Health Insurance Portability and Accountability Act-compliant retrospective study included 413 cases of focal breast pain in 369 women (mean age 53 years). All cases were evaluated with both mammogram and ultrasound and had at least 2 years of imaging follow-up...
October 13, 2016: Academic Radiology
RaviK Shastri, GaurangV Shah, Page Wang, Patricia Cagnoli, Tobias Schmidt-Wilcke, Joseph McCune, Richard Harris, PiaC Sundgren
PURPOSE: Systemic lupus erythematosus (SLE) is a predominantly female autoimmune disease that can affect the central nervous system. Neuropsychiatric symptoms are found in 25-70% of SLE patients. Using diffusion tensor imaging, various studies have reported changes in white matter integrity in SLE patients with neuropsychiatric symptoms (NPSLE patients). The purpose of this study was to investigate if changes can be detected in the individual white matter tracts in SLE patients regardless if neuropsychiatric symptoms are present or not...
October 13, 2016: Academic Radiology
Tao Peng, Liming Dong, Zhihua Zhu, Jing Cui, Qian Li, Xin Li, Heshui Wu, Chunyou Wang, Zhiyong Yang
RATIONALE AND OBJECTIVES: Some deep pelvic abscesses are not accessible through anterior or lateral approaches because of the presence of organs and structures. The objective of this study was to assess the feasibility, safety, tolerability, and efficacy of a percutaneous presacral space approach by reviewing our clinical experience and the literature. MATERIALS AND METHODS: The outcomes of 12 patients, who have undergone computed tomography (CT)-guided percutaneous presacral space drainage, were retrospectively reviewed, including demographic, clinical, and morphological data in the medical records...
October 12, 2016: Academic Radiology
John V Thomas, Rupan Sanyal, Janis P O'Malley, Satinder P Singh, Desiree E Morgan, Cheri L Canon
The academic educator's portfolio is a collection of materials that document academic performance and achievements, supplementing the curriculum vitae, in order to showcase a faculty member's most significant accomplishments. A decade ago, a survey of medical schools revealed frustration in the nonuniform methods of measuring faculty's medical education productivity. A proposed solution was the use of an academic educator's portfolio. In the academic medical community, compiling an academic portfolio is always a challenge because teaching has never been confined to the traditional classroom setting and often involves active participation of the medical student, resident, or fellow in the ongoing care of the patient...
October 11, 2016: Academic Radiology
Ferenc Czeyda-Pommersheim
No abstract text is available yet for this article.
October 11, 2016: Academic Radiology
Michael Messerli, Fabian Rengier, Lotus Desbiolles, Niklas F Ehl, Ralf W Bauer, Sebastian Leschka, Hatem Alkadhi, Simon Wildermuth, Claas P Nähle
RATIONALE AND OBJECTIVES: To evaluate the influence of advanced modeled iterative reconstruction (ADMIRE) on the coronary artery calcium (CAC) scores by computed tomography (CT). MATERIALS AND METHODS: Sixty patients underwent CAC imaging with dual-source 192-slice CT. Agatston, volume and mass score were calculated from filtered back projection (FBP) and iterative reconstructions with different levels of ADMIRE. Friedman test and Wilcoxon rank sum test were used for multiple comparisons of CAC values and the difference ratio among different ADMIRE groups using FBP as reference...
October 11, 2016: Academic Radiology
Kevin Kalisz, Vasant Garg, Kyle Basques, Robert Gilkeson, Peter Young
RATIONALE AND OBJECTIVES: This study aimed to assess the quality of and analyze trends among clinical indications received for emergency room radiograph studies. MATERIALS AND METHODS: Clinical indications provided by the emergency room and rapid care for consecutive chest, abdominal, and musculoskeletal radiographs were reviewed. Chart review was performed to analyze the provided indications compared to clinical information known to the ordering providers. Chest and abdominal radiograph indications were graded according to symptoms and physical examination signs and relevant past medical history...
October 10, 2016: Academic Radiology
Sangyun Lee, Heejin Kwon, Jihan Cho
RATIONALE AND OBJECTIVES: To investigate image quality characteristics of abdominal computed tomography (CT) scans reconstructed with adaptive statistical iterative reconstruction V (ASIR-V) vs currently using applied adaptive statistical iterative reconstruction (ASIR). MATERIALS AND METHOD: This institutional review board-approved study included 35 consecutive patients who underwent CT of the abdomen. Among these 35 patients, 27 with focal liver lesions underwent abdomen CT with a 128-slice multidetector unit using the following parameters: fixed noise index of 30, 1...
October 10, 2016: Academic Radiology
Kerstin Mueller, Rebecca Fahrig, Michael Manhart, Yu Deuerling-Zheng, Jarrett Rosenberg, Teri Moore, Arundhuti Ganguly, Nishita Kothary
RATIONALE AND OBJECTIVES: Intra-procedural measurement of hepatic perfusion following liver embolization continues to be a challenge. Blood volume imaging before and after interventional procedures would allow identifying the treatment end point or even allow predicting treatment outcome. Recent liver oncology studies showed the feasibility of parenchymal blood volume (PBV) imaging using an angiographic C-arm system. This study was done to evaluate the reproducibility of PBV measurements using cone beam computed tomography (CBCT) before and after embolization of the liver in a swine model...
October 10, 2016: Academic Radiology
Sanjay Dandamudi, Jeremy D Collins, James C Carr, Pat Mongkolwat, Amir A Rahsepar, Todd T Tomson, Nishant Verma, Rishi Arora, Alex B Chicos, Susan S Kim, Albert C Lin, Rod S Passman, Bradley P Knight
RATIONALE AND OBJECTIVES: Studies reporting the safety of magnetic resonance imaging (MRI) in patients with a cardiac implantable electronic device (CIED) have mostly excluded examinations with the device in the magnet isocenter. The purpose of this study was to describe the safety of cardiac and thoracic spine MRI in patients with a CIED. MATERIALS AND METHODS: The medical records of patients with a CIED who underwent a cardiac or thoracic spine MRI between January 2011 and December 2014 were reviewed...
October 4, 2016: Academic Radiology
Andrea Ferrero, Juan C Montoya, Lisa E Vaughan, Alice E Huang, Ian O McKeag, Felicity T Enders, James C Williams, Cynthia H McCollough
RATIONALE AND OBJECTIVES: Previous studies have demonstrated a qualitative relationship between stone fragility and internal stone morphology. The goal of this study was to quantify morphologic features from dual-energy computed tomography (CT) images and assess their relationship to stone fragility. MATERIALS AND METHODS: Thirty-three calcified urinary stones were scanned with micro-CT. Next, they were placed within torso-shaped water phantoms and scanned with the dual-energy CT stone composition protocol in routine use at our institution...
October 4, 2016: Academic Radiology
Yong-Xia Zhao, Zi-Wei Zuo, Hong-Na Suo, Jia-Ning Wang, Jin Chang
RATIONALE AND OBJECTIVES: This study aimed to determine the appropriate body mass index (BMI)-dependent noise index (NI) setting in computed tomography pulmonary angiography (CTPA) with automatic tube current modulation with adaptive statistical iterative reconstruction (ASiR). MATERIALS AND METHODS: A total of 480 patients who had a CTPA were divided into group A (18.5 kg/m(2) ≤ BMI < 25 kg/m(2)), group B (25 kg/m(2) ≤ BMI < 30 kg/m(2)), and group C (BMI ≥ 30 kg/m(2)), according to their BMI values; each group had 160 patients...
October 4, 2016: Academic Radiology
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