5,867 results match your criteria Academic Radiology[Journal]


Image Quality of Virtual Monochromatic Reconstructions of Noncontrast CT on a Dual-Source CT Scanner in Adult Patients.

Acad Radiol 2020 Jun 30. Epub 2020 Jun 30.

Department of Neuroradiology, Stanford University, Palo Alto, CA.

Rationale And Objectives: To evaluate the image quality of virtual monochromatic images (VMI) reconstructed from dual-energy dual-source noncontrast head CT with different reconstruction kernels.

Materials And Methods: Twenty-five consecutive adult patients underwent noncontrast dual-energy CT. VMI were retrospectively reconstructed at 5-keV increments from 40 to 140 keV using quantitative and head kernels. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.038DOI Listing

Modality Interpretation Among Radiologists: Opportunities for Equality, Wellness, and Satisfaction.

Acad Radiol 2020 Jun 30. Epub 2020 Jun 30.

Department of Radiology, Northwestern University Feinberg School of Medicine, 676 St. Clair St, Suite 800, Chicago, IL 60611.

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http://dx.doi.org/10.1016/j.acra.2020.05.034DOI Listing

Educating Radiologists to Fulfill Ethical and Professional Responsibilities as Sentinels.

Acad Radiol 2020 Jun 30. Epub 2020 Jun 30.

Department of Radiology, Indiana University School of Medicine, 702 North Barnhill Drive, Room 1053, Indianapolis, IN 46202. Electronic address:

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http://dx.doi.org/10.1016/j.acra.2020.06.019DOI Listing

Factors That Drive Heterogeneity of Response-to-Treatment of Different Metastatic Deposits Within the Same Patients as Measured by RECIST 1.1 Analyses.

Acad Radiol 2020 Jun 29. Epub 2020 Jun 29.

Department of Diagnostic and Interventional Radiology, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany.

Rationale And Objective: This study uses the rate of between-reader variability under Response Evaluation Criteria for Solid Tumors (RECIST) 1.1 as a metric to estimate the prevalence of biologic heterogeneity of individual metastases, and to determine whether this prevalence is modulated by the type of primary tumor, or type of treatment administered.

Materials And Methods: Three radiologists independently used dedicated oncologic response-assessment software (MintLesion) to prospectively determine RECIST1. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.029DOI Listing

COVID-19 Diagnostic Imaging: Caution Need Before the End of the Game.

Acad Radiol 2020 Jun 20. Epub 2020 Jun 20.

Department of Medicine, University of Udine, Italy, Anesthesia and Intensive Care Clinic, Via Colugna n° 50 33100 Udine, Italy; University-Hospital of Udine, Department of Anesthesia and Intensive Care, P.le S. Maria della. Misericordia n° 15 33100 Udine, Italy.

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http://dx.doi.org/10.1016/j.acra.2020.06.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7305904PMC

Assessment of Malignancy Potential in Intraductal Papillary Mucinous Neoplasms of the Pancreas on MDCT.

Acad Radiol 2020 Jun 23. Epub 2020 Jun 23.

Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Ruijin Er Road, Shanghai 200025, China. Electronic address:

Rationale And Objective: To assess the malignancy potential of intraduct papillary mucinous neoplasms (IPMNs) on multidetector-row computerized tomography according to the 2012 International Consensus Guidelines (ICG).

Materials And Methods: This study retrospectively collected IPMNs confirmed by surgery from 2016 to 2019. The imaging findings of IPMNs were analyzed. Read More

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http://dx.doi.org/10.1016/j.acra.2020.03.042DOI Listing

COVID-19 Impact on Well-Being and Education in Radiology Residencies: A Survey of the Association of Program Directors in Radiology.

Acad Radiol 2020 Jun 13. Epub 2020 Jun 13.

University of North Carolina School of Medicine, Chapel Hill, North Carolina.

Rationale And Objectives: The COVID-19 pandemic has forced rapid evolution of the healthcare environment. Efforts to mitigate the spread of the virus through social distancing and shelter-at-home edicts have unintended consequences upon clinical and educational missions and mental well-being of radiology departments. We sought to understand the impact of the COVID-19 pandemic on radiology residencies with respect to the educational mission and perceptions of impact on well-being. Read More

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http://dx.doi.org/10.1016/j.acra.2020.06.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7293482PMC
June 2020
2.077 Impact Factor

Innovation Born in Isolation: Rapid Transformation of an In-Person Medical Student Radiology Elective to a Remote Learning Experience During the COVID-19 Pandemic.

Acad Radiol 2020 Jun 18. Epub 2020 Jun 18.

The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins, University School of Medicine, Baltimore, MD 21287. Electronic address:

Rationale And Objectives: With social distancing measures in place both nationally and globally, the current COVID-19 pandemic has forced the cancellation of in-person classes at universities and medical schools across the country. This has presented unique challenges for educators in all fields as they have embarked, many for the first time, on the journey into remote education in order to provide distance learning opportunities for students.

Materials And Methods: In this article we will review our approach to rapidly converting an in-person diagnostic radiology elective to an entirely remote learning experience for medical students at our institution, including modification of course structure, software tools and materials utilized, and strategies for learner engagement and collaboration. Read More

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http://dx.doi.org/10.1016/j.acra.2020.06.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7302778PMC

Clinical Non-Small Cell Lung Cancer Staging and Tumor Length Measurement Results From U.S. Cancer Hospitals.

Acad Radiol 2020 Jun 17. Epub 2020 Jun 17.

Department of Radiology.

Rationale And Objectives: Examine the accuracy of clinical non-small cell lung cancer staging and tumor length measurements, which are critical to prognosis and treatment planning.

Materials And Methods: Compare clinical and pathological staging and lengths using 10,320 2016 National Cancer Institute Surveillance, Epidemiology, and End Results (SEER) and 559 2010-2018 non-SEER single-institute surgically-treated cases, and analyze modifiable causes of disagreement.

Results: The SEER clinical and pathological group-stages agree only 62. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.007DOI Listing

Video Interviewing: A Review and Recommendations for Implementation in the Era of COVID-19 and Beyond.

Acad Radiol 2020 Jun 8. Epub 2020 Jun 8.

Department of Radiology, University of Michigan Medical School, Room 3-220, 1540 E. Hospital Dr, Ann Arbor, MI.

Due to the COVID-19 pandemic, it is very likely that many radiology residency and fellowship programs will adopt interactive videoconference interviewing for the 2020-2021 residency match cycle. Although video interviewing has become a common part of the hiring process for business, experience with video interviewing for resident and fellow selection has been limited. Advantages of video interviews over traditional on-site interviews include cost-savings to both applicants and residency programs, less disruption to an applicant's educational activities, and potential for training programs to access a wider pool of candidates. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.020DOI Listing

Prostate Volume Estimation on MRI: Accuracy and Effects of Ellipsoid and Bullet-Shaped Measurements on PSA Density.

Acad Radiol 2020 Jun 14. Epub 2020 Jun 14.

Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy.

Rationale And Objectives: PSA density (PSAd), an important decision-making parameter for patients with suspected prostate cancer (PCa), is dependent on magnetic resonance imaging prostate volume (PV) estimation. We aimed to compare the accuracy of the ellipsoid and bullet-shaped formulas with manual whole-gland segmentation as reference standard and to evaluate the corresponding PSAd diagnostic accuracy in predicting clinically significant PCa.

Materials And Methods: We retrospectively analysed 195 patients with suspected PCa who underwent magnetic resonance imaging and prostate biopsy. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.014DOI Listing

Reply to "MRI Evaluation of the Olfactory Clefts in Patients with SARS-CoV-2 Infection Revealed an Unexpected Mechanism for Olfactory Function Loss".

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Otolaryngology Head and Neck Surgery, Masih Daneshvari Hospital, Neyavran, Daar Abad, Tehran, Iran. Electronic address:

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http://dx.doi.org/10.1016/j.acra.2020.05.025DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7284249PMC

Higher Iodine Concentration Enables Radiation Dose Reduction in Coronary CT Angiography.

Acad Radiol 2020 Jun 14. Epub 2020 Jun 14.

Department of Radiology, Beijing Tongren Hospital, Capital Medical University, No. 1 Dongjiaomin lane, Dongcheng District, Beijing 100730, P.R. China. Electronic address:

Rationale And Objectives: To test whether higher iodine concentration together with higher noise level could lead to a further dose reduction in an already low dose coronary CT angiography (CCTA) protocol without comprising image quality.

Materials And Methods: One hundred eighty patients with suspected coronary artery disease (CAD) were randomly assigned into three groups: (a) conventional dose (CD) group, 100 kV with a noise index (NI) of 25 and iohexol (350 mg I/ml); (b) low dose (LD) group, 80 kV with a NI of 25 and iohexol (350 mg I/ml); (c) further low dose (FLD) group, 80 kV with a NI of 30 and iomeprol (400 mg I/ml). The volume and injection rate of contrast medium were fixed at 60 ml and 5 ml/s. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.012DOI Listing

Preserving Radiology Resident Education During the COVID-19 Pandemic: The Simulated Daily Readout.

Acad Radiol 2020 Jun 8. Epub 2020 Jun 8.

Department of Radiology, New York University Grossman School of Medicine, New York, New York.

Rationale And Objectives: The educational value of the daily resident readout, a vital component of resident training, has been markedly diminished due to a significant decrease in imaging volume and case mix diversity. The goal of this study was to create a "simulated" daily readout (SDR) to restore the educational value of the daily readout.

Materials And Methods: To create the SDR the following tasks were performed; selection of cases for a daily worklist for each resident rotation, comprising a combination of normal and abnormal cases; determination of the correct number of cases and the appropriate mix of imaging modalities for each worklist; development of an "educational" environment consisting of separate "instances" of both our Picture Archive Communication System and reporting systems; and the anonymization of all of the cases on the worklists. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.021DOI Listing

COVID-19: The Importance of Multidisciplinary Approach.

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Division of Radiology, Mayo Clinic Rochester, Rochester, Minnesota.

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http://dx.doi.org/10.1016/j.acra.2020.05.023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7284255PMC

The Business Case for a Successful Medical 3D Printing Program.

Acad Radiol 2020 Jun 14. Epub 2020 Jun 14.

Department of Radiology, Michigan Medicine, UH B1 F510H, 1500 E. Medical Center Drive, Ann Arbor, MI 48109-5030.

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http://dx.doi.org/10.1016/j.acra.2020.04.009DOI Listing

Neurological Dysfunction in Coronavirus Disease-19 (COVID-19).

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Anesthesiology and Critical Care Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India.

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http://dx.doi.org/10.1016/j.acra.2020.05.024DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7284232PMC

Results of the 2019 Survey of the American Alliance of Academic Chief Residents in Radiology.

Acad Radiol 2020 Jun 13. Epub 2020 Jun 13.

Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S. Kingshighway Blvd, Campus Box 8131, St. Louis, MO, 63110.

Rationale And Objectives: An annual survey of chief residents in accredited North American radiology programs is conducted by the American Alliance of Academic Chief Residents in Radiology (ACR). The purpose of this study is to summarize the 2019 ACR chief resident survey.

Materials And Methods: An online survey was distributed to chief residents from 194 Accreditation Council on Graduate Medical Education-accredited radiology residencies. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.042DOI Listing
June 2020
2.077 Impact Factor

Quantitative Evaluation of Hip Muscle Atrophy in Patients with Unilateral Slipped Capital Femoral Epiphysis Based on Magnetic Resonance Imaging.

Acad Radiol 2020 Jun 12. Epub 2020 Jun 12.

Department of Radiology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang 110004, China. Electronic address:

Rationale And Objectives: Hip muscle atrophy commonly occurs in patients with unilateral slipped capital femoral epiphysis (SCFE), its effect in patients with unilateral SCFE is worthy of further investigation. This study aimed to investigate the relationship between hip muscle cross-sectional area (M-CSA) and unilateral SCFE using magnetic resonance imaging.

Materials And Methods: Overall, 32 unilateral SCFE patients (SCFE group) and 15 asymptomatic subjects (control group) were evaluated. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.007DOI Listing

Performance of Lung Nodule Management Algorithms for Lung-RADS Category 4 Lesions.

Acad Radiol 2020 Jun 12. Epub 2020 Jun 12.

Department of Radiology (Thoracic Division), Brigham and Women's Hospital, 75 Francis Street, Boston, Massachusetts 02115.

Purpose: To test the performance of the American College of Chest Physicians (ACCP) and British Thoracic Society (BTS) algorithms to stratify high-risk nodules identified at lung cancer screening.

Method And Materials: Patients with Lung-RADS category 4 nodules identified on lung cancer screening computed tomography (CT) between March 2014 and August 2018 were identified, and a subset of 150 were randomly selected. Nodule characteristics and, if available, fluorodeoxyglucose (FDG) uptake on positron emission tomography (PET)-CT scan were recorded. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.041DOI Listing

Evaluation of Glypican-3 Expression in Hepatocellular Carcinoma by Using IDEAL IQ Magnetic Resonance Imaging.

Acad Radiol 2020 Jun 12. Epub 2020 Jun 12.

Department of Medical Imaging, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou, 450003, China. Electronic address:

Rationale And Objectives: To investigate the value of iterative decomposition of water and fat with echo asymmetry and least squares estimation (IDEAL IQ) and gadolinium-ethoxybenzyl-diethylenetriamine (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) for evaluating Glypican-3 (GPC3) expression in hepatocellular carcinoma (HCC).

Materials And Methods: Seventy-six patients with histopathologic diagnosis of HCC were retrospectively included in this study. In all patients IDEAL IQ and Gd-EOB-DTPA-enhanced MRI were performed preoperatively using a 3 T MRI system. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.015DOI Listing

Subharmonic Imaging (SHI)-Can a New Ultrasound Approach Improve Breast Cancer Diagnosis?

Authors:
J Brian Fowlkes

Acad Radiol 2020 Jun 12. Epub 2020 Jun 12.

Department of Radiology, University of Michigan Medical School, 3226C Medical Sciences Building I, 1301 Catherine Street, Ann Arbor, MI 48109-5667; Department of Biomedical Engineering, University of Michigan Medical School, Ann Arbor, Michigan. Electronic address:

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http://dx.doi.org/10.1016/j.acra.2020.05.011DOI Listing

Hybrid Clinical-Radiomics Model for Precisely Predicting the Invasiveness of Lung Adenocarcinoma Manifesting as Pure Ground-Glass Nodule.

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, China; School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China. Electronic address:

Rationale And Objectives: To identify whether the radiomics features of computed tomography (CT) allowed for the preoperative discrimination of the invasiveness of lung adenocarcinomas manifesting as pure ground-glass nodules (pGGNs) and further to develop and compare different predictive models.

Materials And Methods: We retrospectively included 187 lung adenocarcinomas presenting as pGGNs (66 preinvasive lesions and 121 invasive lesions), which were randomly divided into the training and test sets (8:2). Radiomics features were extracted from non-enhanced CT images. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.004DOI Listing

Combined Assessment of Pulmonary Ventilation and Perfusion with Single-Energy Computed Tomography and Image Processing.

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Radiation Oncology, University of California Davis School of Medicine, 4501 X Street, G-145, Sacramento, CA. Electronic address:

Rationale And Objectives: To establish a proof-of-principle for combined assessment of pulmonary ventilation and perfusion using single-energy computed tomography (CT) and image processing/analysis (denoted as single-energy CT ventilation/perfusion imaging).

Materials And Methods: Breath-hold CT scans were acquired at end-expiration and end-inspiration before injection of iodinated contrast agents, and repeated at end-inspiration after contrast injection for 17 canines (8 normal and 9 diseased lung subjects). Ventilation images were calculated with deformable image registration to map the end-expiratory and end-inspiratory CT images and quantitative analysis for regional volume changes as surrogates for ventilation. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.004DOI Listing

The Added Diagnostic Value of the Bright Rim Sign to Conventional MRI Assessment of Anterior Talofibular Ligament Disruption.

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Radiodiagnosis, Faculty of Human Medicine, Benha University, Benha, Egypt.

Rationale And Objectives: The bright rim sign (BRS) was used as a reliable indicator of anterior talofibular ligament (ATFL) disruption beside other well-known diagnostic criteria. Although this sign can improve accuracy of conventional magnetic resonance imaging (MRI) in diagnosis of ATFL disruption, it was not adequately discussed in the literature. This study aimed to confirm the added diagnostic value of BRS to conventional MRI assessment of ATFL disruption. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.005DOI Listing

Comparison of Functional Free-Breathing Pulmonary H and Hyperpolarized Xe Magnetic Resonance Imaging in Pediatric Cystic Fibrosis.

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada. Electronic address:

Rationale And Objectives: Phase resolved functional lung (PREFUL) magnetic resonance imaging (MRI) is a free-breathing H-based technique that produces maps of fractional ventilation (FV). This study compared ventilation defect percent (VDP) calculated using PREFUL to hyperpolarized (HP) Xe MRI and pulmonary function tests in pediatric cystic fibrosis (CF).

Materials And Methods: 27 pediatric participants were recruited (mean age 13. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.008DOI Listing

The Diagnostic Value of Contrast-Enhanced Ultrasound for Monitoring Complications After Kidney Transplantation-A Systematic Review and Meta-Analysis.

Acad Radiol 2020 Jun 9. Epub 2020 Jun 9.

Department of Radiology, Thomas Jefferson University, 901 Walnut St, Philadelphia, Pennsylvania.

Rationale And Objectives: Contrast-enhanced ultrasound (CEUS) has increasingly gained acceptance in the postoperative evaluation of kidney-transplantation recipients. Our meta-analysis aims to evaluate the diagnostic accuracy of CEUS in identifying post-transplantation complications.

Materials And Methods: PubMed, Scopus, Ovid Medline, and Cochrane databases were searched from their inception until February 28, 2020, for diagnostic test accuracy studies comparing CEUS to a reference standard for monitoring complications after kidney transplantation. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.009DOI Listing

Digital Eye Strain Among Radiologists: A Survey-based Cross-sectional Study.

Acad Radiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Ophthalmology, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia.

Background: Computers have become a fundamental part of clinical radiology departments. Radiologists tend to spend long hours in front of computers, reading and analyzing medical images. This prolonged use of computers is associated with digital eye strain. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.006DOI Listing
June 2020
2.077 Impact Factor

Comparing the Safety and Cost of Image-Guided Percutaneous Gastrostomy Tube Placement in the Outpatient Versus Overnight Observation Setting in a Single-Center Retrospective Study.

Acad Radiol 2020 Jun 8. Epub 2020 Jun 8.

Emory University Department of Radiology, Emory University Hospital, 1364 Clifton Road NE, Suite D112, Atlanta, GA 30322.

Rationale And Objectives: Historically, patients undergoing image-guided percutaneous gastrostomy tube placement have been admitted overnight with feeds commencing 12-24 hours postprocedure. With new expedited feeding protocols starting 3-4 hours postprocedure, same-day discharge is now possible. The purpose of this study was to evaluate the safety and cost of image-guided percutaneous gastrostomy tube placement as an outpatient procedure. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.044DOI Listing

Long-term Clinical Outcomes of US-Guided High-Intensity Focused Ultrasound Ablation for Symptomatic Submucosal Fibroids: A Retrospective Comparison with Uterus-Sparing Surgery.

Acad Radiol 2020 Jun 8. Epub 2020 Jun 8.

Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing, China.

Rationale And Objectives: Uterus-sparing surgery and ultrasound (US)-guided high-intensity focused ultrasound (HIFU) ablation are both treatment options for symptomatic submucosal fibroids. No study had compared the long-term clinical outcomes between the two techniques. Therefore, the aim of this study was to compare the long-term clinical outcomes between US-guided HIFU ablation and uterus-sparing surgery for the treatment of symptomatic submucosal fibroids. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.010DOI Listing

Shear Wave Elastography for Assessment of Muscular Abnormalities Related to Systemic Sclerosis.

Acad Radiol 2020 Jun 9. Epub 2020 Jun 9.

Department of Diagnostic and Interventional Radiology, University Hospital Tuebingen, Hoppe-Seyler-Strasse 3, 72076 Tuebingen, Germany.

Rationale And Objectives: To assess muscular abnormalities related to systemic sclerosis (SSc) using shear wave elastography and correlate results with those of clinical tests.

Materials And Methods: We evaluated 55 patients (mean age: 50.4 years; range: 18-88; 34 female) with SSc before treatment and choose muscle groups based on cutaneous involvement and functional impairment [forearms (9); thighs (41); thenar/hypothenar (5)]. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.043DOI Listing

Yttrium-90 Radioembolization and Tumor Hypoxia: Gas-challenge BOLD Imaging in the VX2 Rabbit Model of Hepatocellular Carcinoma.

Acad Radiol 2020 Jun 7. Epub 2020 Jun 7.

Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Biomedical Engineering, Northwestern University, Evanston, Illinois.

Rationale And Objectives: To use a rapid gas-challenge blood oxygen-level dependent magnetic resonance imaging exam to evaluate changes in tumor hypoxia after Y radioembolization (Y90) in the VX2 rabbit model.

Materials And Methods: White New Zealand rabbits (n = 11) provided a Y90 group (n = 6 rabbits) and untreated control group (n = 5 rabbits). R2* maps were generated with gas-challenges (O/room air) at baseline, 1 week, and 2 weeks post-Y90. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.012DOI Listing
June 2020
2.077 Impact Factor

A CT-based Radiomics Model for Prediction of Lymph Node Metastasis in Early Stage Gastric Cancer.

Acad Radiol 2020 Jun 2. Epub 2020 Jun 2.

Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin 300060, China; National Clinical Research Center for Cancer, Tianjin, China; Tianjin's Clinical Research Center for Cancer, Tianjin, China; The Key Laboratory of Cancer Prevention and Therapy, Tianjin, China. Electronic address:

Rationale And Objectives: To develop and validate a CT-based radiomics model for preoperative prediction of lymph node metastasis (LNM) in early stage gastric cancer (EGC).

Materials And Methods: Four hundred and sixty-three consecutive EGC patients were enrolled in this retrospective study. Radiomics features were extracted from portal venous phase CT scans. Read More

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http://dx.doi.org/10.1016/j.acra.2020.03.045DOI Listing

Trainee and Attending Perspectives on Remote Radiology Readouts in the Era of the COVID-19 Pandemic.

Acad Radiol 2020 May 23. Epub 2020 May 23.

Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115.

Rationale And Objectives: Social distancing mandates due to COVID-19 have necessitated adaptations to radiology trainee workflow and educational practices, including the radiology "readout." We describe how a large academic radiology department achieved socially distant "remote readouts," provide trainee and attending perspectives on this early experience, and propose ways by which "remote readouts" can be used effectively by training programs beyond COVID-19.

Materials And Methods: Beginning March 2020, radiologists were relocated to workspaces outside of conventional reading rooms. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7245278PMC

CT Manifestations and Clinical Characteristics of 1115 Patients with Coronavirus Disease 2019 (COVID-19): A Systematic Review and Meta-analysis.

Acad Radiol 2020 07 5;27(7):910-921. Epub 2020 May 5.

Department of Radiology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, PR China. Electronic address:

Rationale And Objectives: We aimed to assess the prevalence of significant computed tomographic(CT) manifestations and describe some notable features based on chest CT images, as well as the main clinical features of patients with coronavirus disease 2019(COVID-19).

Materials And Methods: A systematic literature search of PubMed, EMBASE, the Cochrane Library, and Web of Science was performed to identify studies assessing CT features, clinical, and laboratory results of COVID-19 patients. A single-arm meta-analysis was conducted to obtain the pooled prevalence and 95% confidence interval (95% CI). Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.033DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7200137PMC

Disposable Isolation Device to Reduce COVID-19 Contamination During CT Scanning.

Acad Radiol 2020 May 25. Epub 2020 May 25.

Center for Interventional Oncology, Radiology and Imaging Sciences, NIH Clinical Center and National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892. Electronic address:

Rationale And Objectives: The use of chest computed tomography (CT) in the era of the COVID-19 pandemic raises concern regarding the transmission risks to patients and staff caused by CT room contamination. Meanwhile the Center for Disease Control guidance for air exchange in between patients may heavily impact workflows. To design a portable custom isolation device to reduce imaging equipment contamination during a pandemic. Read More

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http://dx.doi.org/10.1016/j.acra.2020.05.017DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7247507PMC

Detection of Immunotherapeutic Response in a Transgenic Mouse Model of Pancreatic Ductal Adenocarcinoma Using Multiparametric MRI Radiomics: A Preliminary Investigation.

Acad Radiol 2020 Jun 1. Epub 2020 Jun 1.

Department of Radiology, Feinberg School of Medicine, Northwestern University, 737 N. Michigan Ave, 16th Floor, Chicago, Illinois 60611; Robert Lurie Comprehensive Cancer Center of Northwestern University, Chicago, Illinois. Electronic address:

Rationale And Objectives: To develop classification and regression models interpreting tumor characteristics obtained from structural (T1w and T2w) magnetic resonance imaging (MRI) data for early detection of dendritic cell (DC) vaccine treatment effects and prediction of long-term outcomes for LSL-Kras; LSL-Trp53; Pdx-1-Cre (KPC) transgenic mice model of pancreatic ductal adenocarcinoma.

Materials And Methods: Eight mice were treated with DC vaccine for 3 weeks while eight KPC mice were used as untreated control subjects. The reproducibility of the computed 264 features was evaluated using the intraclass correlation coefficient. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.026DOI Listing

Social Media in Radiology: Overview and Usefulness of Online Professional #SoMe Profiles.

Acad Radiol 2020 May 29. Epub 2020 May 29.

University of Maryland Medical Center, Baltimore, Maryland.

Social media is a ubiquitous part of society and used by many healthcare professionals, including radiologists. This article prepared by the 2019-2020 Radiology Research Alliance Social Media Task Force presents different uses and benefits of an online professional social media profile. Physician and healthcare-specific issues along with popular platforms such as LinkedIn, Facebook, Twitter, Instagram, and YouTube are used to explore topics including education, branding, research, mentorship, promotion, and leadership. Read More

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http://dx.doi.org/10.1016/j.acra.2020.03.014DOI Listing
May 2020
2.077 Impact Factor

Acute Mesenteric Ischemia in Severe Coronavirus-19 (COVID-19): Possible Mechanisms and Diagnostic Pathway.

Acad Radiol 2020 May 23. Epub 2020 May 23.

Department of Anesthesiology and Critical Care Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India.

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http://dx.doi.org/10.1016/j.acra.2020.05.016DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7245306PMC

Teaching Remotely: Educating Radiology Trainees at the Workstation in the COVID-19 Era.

Authors:
Rohini Nadgir

Acad Radiol 2020 May 23. Epub 2020 May 23.

Johns Hopkins Medical Institution, 600 N. Wolfe St., Baltimore, MD 21287. Electronic address:

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http://dx.doi.org/10.1016/j.acra.2020.05.018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7245212PMC

CT Fluoroscopy Guided Thoracic Biopsies (CTTB) Are Highly Accurate and Safe: Outcomes and Predictive Modeling of Complications Utilizing Machine Learning.

Acad Radiol 2020 May 28. Epub 2020 May 28.

Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.

Purpose: CT guided transthoracic biopsy (CTTB) is an established, minimally invasive method for diagnostic evaluation of a variety of thoracic diseases. We assessed a large CTTB cohort diagnostic accuracy, complication rates, and developed machine learning models to predict complications.

Materials And Methods: We retrospectively identified 796 CTTB patients in a tertiary hospital (5-year interval). Read More

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http://dx.doi.org/10.1016/j.acra.2020.03.036DOI Listing

On Green Radiology.

Acad Radiol 2020 May 27. Epub 2020 May 27.

University of Michigan, Department of Radiology, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5030; University of Michigan, Department of Obstetrics and Gynecology, Ann Arbor, MI 48109-0276.

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http://dx.doi.org/10.1016/j.acra.2020.04.017DOI Listing

An Institutional Academic and Research Track Curriculum for Radiology Residents: Development, Implementation, and Outcomes Assessment at 6 Years.

Acad Radiol 2020 May 22. Epub 2020 May 22.

Department of Radiology, AdventHealth Orlando, Orlando, Florida.

Rationale And Objectives: We report the creation of a voluntary research development curriculum for radiology residents at our institution, detailing outcomes after 6 years of existence.

Materials And Methods: We developed a comprehensive Academic and Research Track (ART) curriculum for radiology residents in our department, including mentorship, monthly meetings, didactic curriculum, ongoing evaluation/feedback, protected academic time, and financial support. A literature review identified all indexed publications for our residency graduates from 6 years pre- (2007-2012) to 6 years post-ART (2013-2018) intervention. Read More

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http://dx.doi.org/10.1016/j.acra.2019.11.024DOI Listing

Radiology, Sexual Harassment, and the #MeToo Movement.

Acad Radiol 2020 May 21. Epub 2020 May 21.

Department of Radiology, Oregon Health & Science University, Portland, Oregon.

The rise of the #MeToo movement has sparked renewed conversations about sexual harassment in the workplace. All medical fields, including radiology, can benefit from reflecting on workplace culture, reviewing policies, and committing to change. This review provides an overview of the #MeToo movement, describes the prevalence of sexual harassment in medicine and radiology, summarizes barriers to reporting incidents of sexual harassment, evaluates the backlash to the #MeToo movement, and discusses policies and procedures to aid in preventing sexual harassment in the #MeToo era. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.036DOI Listing

Can Dual-energy CT-based Virtual Monoenergetic Imaging Improve the Assessment of Hypodense Liver Metastases in Patients With Hepatic Steatosis?

Acad Radiol 2020 May 21. Epub 2020 May 21.

University Hospital Frankfurt, Division of Experimental Imaging, Department of Diagnostic and Interventional Radiology, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany. Electronic address:

Rationale And Objectives: To evaluate the impact of noise-optimized virtual monoenergetic imaging (VMI) on lesion demarcation and measuring accuracy of hypoattenuating liver metastases in patients with fatty liver disease compared to standard reconstructions.

Materials And Methods: Twenty-eight patients (mean age 62.2 ± 7. Read More

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http://dx.doi.org/10.1016/j.acra.2020.03.044DOI Listing

Lung Ultrasound in COVID-19 Pneumonia: Prospects and Limitations.

Acad Radiol 2020 07 3;27(7):1044-1045. Epub 2020 May 3.

Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Electronic address:

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http://dx.doi.org/10.1016/j.acra.2020.04.032DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7196391PMC
July 2020
2.077 Impact Factor

Natural History of Epithelioid Hemangioendothelioma of the Liver: CT Findings of 15 Cases.

Acad Radiol 2020 May 18. Epub 2020 May 18.

Department of Diagnostic Radiology, National Cancer Center Hospital.

Rationale And Objectives: Little is known about the natural history of epithelioid hemangioendothelioma (EHE) of the liver. This study aimed to assess the natural history of hepatic EHE by evaluating CT findings of patients with pathologically proven hepatic EHE during follow-up without treatment.

Materials And Methods: CT findings of 15 patients (seven men and eight women; median age, 56 years) with pathologically proven hepatic EHE were retrospectively evaluated. Read More

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http://dx.doi.org/10.1016/j.acra.2020.04.015DOI Listing

You Can't Expect When You're Expecting: The Variable State of Parental Leave in Radiology Residency Programs.

Acad Radiol 2020 May 17. Epub 2020 May 17.

Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE. MA.7.220, Seattle, WA 98105.

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http://dx.doi.org/10.1016/j.acra.2020.04.013DOI Listing