36,512 results match your criteria Radiology[Journal]


Is It Time to Expand the Definition of Washout Appearance in LI-RADS?

Radiology 2019 Apr 16:190552. Epub 2019 Apr 16.

From the Liver Imaging Group, University of California San Diego, 200 W Arbor Dr, San Diego, CA 92103.

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http://dx.doi.org/10.1148/radiol.2019190552DOI Listing
April 2019
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A Roadmap for Foundational Research on Artificial Intelligence in Medical Imaging: From the 2018 NIH/RSNA/ACR/The Academy Workshop.

Radiology 2019 Apr 16:190613. Epub 2019 Apr 16.

From the Department of Radiology, Stanford University, Stanford, CA 94305 (C.P.L., M.P.L.); Department of Radiology, Grandview Medical Center, Birmingham, Ala (B.A.); Department of Radiology, Mayo Clinic, Rochester, Minn (B.J.E.); Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass (J.K.C.); GE Healthcare, Chicago, Ill (K.B.); Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pa (T.S.C., J.D.R.); Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pa (A.E.F.); Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY (D.S.M.); Biomedical Imaging Center, Rensselaer Polytechnic Institute, Troy, NY (G.W.); and National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Washington, DC (K.K.).

Imaging research laboratories are rapidly creating machine learning systems that achieve expert human performance using open-source methods and tools. These artificial intelligence systems are being developed to improve medical image reconstruction, noise reduction, quality assurance, triage, segmentation, computer-aided detection, computer-aided classification, and radiogenomics. In August 2018, a meeting was held in Bethesda, Maryland, at the National Institutes of Health to discuss the current state of the art and knowledge gaps and to develop a roadmap for future research initiatives. Read More

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http://dx.doi.org/10.1148/radiol.2019190613DOI Listing

Implementing Virtual and Augmented Reality Tools for Radiology Education and Training, Communication, and Clinical Care.

Radiology 2019 Apr 16:182210. Epub 2019 Apr 16.

From the Department of Radiology, Division of Interventional Radiology, Massachusetts General Hospital, 55 Fruit St, Gray 290, Boston, MA 02114 (R.N.U., C.J.M., G.D.N.); Department of Radiology and Biomedical Imaging, University of California San Francisco Medical Center, San Francisco, Calif (B.L., A.P., J.C.); and Department of Radiology, University of Maryland Medical Center, Baltimore, Md (E.S.).

Advances in virtual immersive and augmented reality technology, commercially available for the entertainment and gaming industry, hold potential for education and clinical use in medicine and the field of medical imaging. Radiology departments have begun exploring the use of these technologies to help with radiology education and clinical care. The purpose of this review article is to summarize how three institutions have explored using virtual and augmented reality for radiology. Read More

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http://dx.doi.org/10.1148/radiol.2019182210DOI Listing

3D Super-Resolution US Imaging of Rabbit Lymph Node Vasculature in Vivo by Using Microbubbles.

Radiology 2019 Apr 16:182593. Epub 2019 Apr 16.

From the Department of Bioengineering, Imperial College London, South Kensington Campus, London SW7 2AZ, England (J.Z., E.M.R., S.H., K.R., C.H.L., G.Z., P.D.W., M.X.T.); Department of Surgery, Maidstone and Tunbridge Wells NHS Trust, Maidstone, England (K.C.); Department of Imaging, Charing Cross Hospital, Fulham Palace Rd, London, England (A.L.); Department of Biomedical Engineering, School of Biomedical Engineering and Imaging Science, Kings College London, London, England (K.C.J., J.B., R.J.E.); Department of Physics and Centre for Pathology, Imperial College London, London, England (C.D.); and Department of Imaging, Natural History Museum, London, England (B.C.).

Background Variations in lymph node (LN) microcirculation can be indicative of metastasis. The identification and quantification of metastatic LNs remains essential for prognosis and treatment planning, but a reliable noninvasive imaging technique is lacking. Three-dimensional super-resolution (SR) US has shown potential to noninvasively visualize microvascular networks in vivo. Read More

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http://dx.doi.org/10.1148/radiol.2019182593DOI Listing
April 2019
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Gadoxetic Acid-enhanced MRI of Hepatocellular Carcinoma: Value of Washout in Transitional and Hepatobiliary Phases.

Radiology 2019 Apr 16:182587. Epub 2019 Apr 16.

From the Department of Radiology and Research Institute of Radiology (D.H.K., S.H.C., S.Y.K., S.S.L., J.H.B.) and Department of Clinical Epidemiology and Biostatistics (M.J.K.), University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-Ro 43-Gil, Songpa-Gu, Seoul 05505, Republic of Korea.

Background Current Liver Imaging Reporting and Data System guidelines define the washout appearance of gadoxetic acid-enhanced MRI only during the portal venous phase. Defining washout only during the portal venous phase may lead to lower sensitivity for diagnosis of hepatocellular carcinoma (HCC). Purpose To compare the diagnostic performances of three gadoxetic acid-enhanced MRI criteria fono. Read More

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http://dx.doi.org/10.1148/radiol.2019182587DOI Listing

False-Positive Measurement at 2-Hydroxyglutarate MR Spectroscopy in Isocitrate Dehydrogenase Wild-Type Glioblastoma: A Multifactorial Analysis.

Radiology 2019 Apr 16:182200. Epub 2019 Apr 16.

From the Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 86 Asanbyeongwon-Gil, Songpa-Gu, Seoul 05505, Republic of Korea (C.H.S., H.S.K., D.K., J.E.P., S.C.J., C.G.C., S.J.K.); Department of Radiology, Gangneung Asan Hospital, Gangneung, Republic of Korea (W.P.); Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Tex (C.C.); Department of Radiology, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea (K.H.R.); and Bioimaging Center, Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea (D.C.W.).

Background Isocitrate dehydrogenase (IDH) mutation has become one of the most important prognostic biomarkers in glioma management. Measurement of 2-hydroxyglutarate (2HG) with MR spectroscopy has shown high pooled sensitivity, although false-positive results with MR spectroscopy have been reported. Purpose To investigate factors associated with false-positive 2HG measurements at MR spectroscopy in patients with IDH wild-type glioblastoma. Read More

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http://dx.doi.org/10.1148/radiol.2019182200DOI Listing

Acquired Systemic-to-Pulmonary Artery Transpleural Collateral Vessel Secondary to Pulmonary Embolism.

Radiology 2019 Apr 16:190175. Epub 2019 Apr 16.

From the Department of Radiology, Service de Radiologie A, Groupe Hospitalier Cochin Broca Hotel-Dieu, AP-HP, Université Paris Descartes, 27 Rue du Faubourg Saint-Jacques, 75014 Paris, France.

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http://dx.doi.org/10.1148/radiol.2019190175DOI Listing

Is Digital Breast Tomosynthesis the Better Mammogram for Local Breast Cancer Staging?

Authors:
Linda Moy

Radiology 2019 Apr 9:190590. Epub 2019 Apr 9.

Form the Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, 160 E 34th St, 3rd Floor, New York, NY 10016.

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http://dx.doi.org/10.1148/radiol.2019190590DOI Listing
April 2019
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Low-Voltage Abdominal CT: Is It Time to Reduce the Dose of Oral Contrast Medium?

Authors:
Andrea Laghi

Radiology 2019 Apr 9:190540. Epub 2019 Apr 9.

From the Department of Surgical and Medical Sciences and Translational Medicine, School of Medicine and Psychology, Sapienza University of Rome, Rome, Italy; and Radiology Unit, Sant'Andrea University Hospital, Via di Grottarossa 1035-1039, 00189 Rome, Italy.

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http://dx.doi.org/10.1148/radiol.2019190540DOI Listing
April 2019
1 Read

Cortical Lesions on 7-T MRI in Multiple Sclerosis: A Window into Pathogenetic Mechanisms?

Radiology 2019 Apr 9:190398. Epub 2019 Apr 9.

From the Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 60, 20132 Milan, Italy.

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http://dx.doi.org/10.1148/radiol.2019190398DOI Listing
April 2019
3 Reads

Local Tumor Staging of Breast Cancer: Digital Mammography versus Digital Mammography Plus Tomosynthesis.

Radiology 2019 Apr 9:182457. Epub 2019 Apr 9.

From the Departments of Medical Imaging (M.F., E.P., I.M., P.T.) and Biostatistics and Medical Information (N.M.), Montpellier University Hospital, Lapeyronie Hospital, 191 avenue du Doyen Gaston Giraud, 34295 Montpellier, France; Department of Medical Imaging, Ramsay Générale de Santé, Hospital Mermoz, Lyon, France (C.T.); Department of Women's Imaging, Centre Hospitalier de Valenciennes, Valenciennes, France (N.L.); and Department of Medical Imaging, ICM (Montpellier Cancer Institute), Montpellier, France (G.L.).

Background Combined digital mammography (DM) and digital breast tomosynthesis (DBT) (hereafter, DM plus DBT) has increased cancer detection rates when compared with those achieved with DM-only screening. However, there is limited literature on DBT as an adjunct to mammography in the staging of known breast cancers. Purpose To compare the diagnostic accuracy of DM alone with that of DM plus DBT in the identification of additional ipsilateral and contralateral lesions in women with newly diagnosed breast cancer. Read More

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http://dx.doi.org/10.1148/radiol.2019182457DOI Listing
April 2019
1 Read

CT of Kidney Volume in Autosomal Dominant Polycystic Kidney Disease: Accuracy, Reproducibility, and Radiation Dose.

Radiology 2019 Apr 9:181830. Epub 2019 Apr 9.

From the Division of Nephrology (M.U.B., T.W.Y., A.L.), Department of Radiology (C.J.H., H.S.), and Centre for Heart Lung Innovation (D.M.V.), University of British Columbia, #700 - 1380 Burrard St, Vancouver, BC, Canada V6Z 2H3; and British Columbia Provincial Renal Agency, Vancouver, Canada (M.U.B., A.R., A.L.).

Background Total kidney volume (TKV) assessment is valuable in autosomal dominant polycystic kidney disease (ADPKD) but the reference standard method of MRI planimetry requires access to MRI and time-consuming interpretation. Purpose To determine whether accurate TKV measurements comparable to the resource-intensive reference standard of MRI planimetry can be obtained by using alternate methods including dose-reducing CT protocols and time-saving measurement equations. Materials and Methods In this prospective study conducted September 2016 to June 2017, adult participants with ADPKD underwent one MRI and two CT examinations. Read More

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http://dx.doi.org/10.1148/radiol.2019181830DOI Listing
April 2019
2 Reads

Low-keV and Low-kVp CT for Positive Oral Contrast Media in Patients with Cancer: A Randomized Clinical Trial.

Radiology 2019 Apr 9:182393. Epub 2019 Apr 9.

From the Department of Radiology, Massachusetts General Hospital, 55 Fruit St, White 270, Boston, MA 02114 (A.P., A.A.N., M.P., F.M., A.K., D.V.S.); Department of Radiology, Hospital Universitario Jose Eleuterio Gonzalez, Monterrey, Mexico (A.A.N.); and Department of Radiology, University of Washington, Seattle, Wash (D.V.S.).

Background Substantial gain in the attenuation of iodine on low-kVp and dual-energy CT processed low-keV virtual monochromatic images provides an opportunity for customization of positive oral contrast media administration. Purpose To perform an intrapatient comparison of bowel labeling, opacification, and taste preference with iodinated oral contrast medium (ICM) in standard (sICM) and 25%-reduced (rICM) concentrations at low tube voltage (100 kVp) or on low-energy (50-70 keV) virtual monochromatic images compared with barium-based oral contrast medium (BCM) at 120 kVp. Materials and Methods In this prospective clinical trial, 200 adults (97 men, 103 women; mean age, 63 years ± 13 [standard deviation]) who weighed less than 113 kg and who were undergoing oncologic surveillance (from April 2017 to July 2018) and who had previously undergone 120-kVp abdominopelvic CT with BCM randomly received sICM (7. Read More

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http://dx.doi.org/10.1148/radiol.2019182393DOI Listing
April 2019
1 Read

Soft-Tissue Sarcomas: Assessment of MRI Features Correlating with Histologic Grade and Patient Outcome.

Radiology 2019 Apr 9:181659. Epub 2019 Apr 9.

From the Departments of Diagnostic and Interventional Radiology (A.C., P.J.M., X.B., M.K.), Oncologic Surgery (E.S.), Clinical Epidemiology Research (V.B.), Medical Oncology (A.I.), and Pathology (F.L.L.), Bergonié Institute, Regional Comprehensive Cancer Center, Bordeaux, France; National Institute for Research in Digital Sciences (INRIA) Bordeaux-Sud-Ouest, Modeling in Oncology Team, National Center for Scientific Research (CNRS) Multidisciplinary Research Unit 5251, Talence, France (A.C.); and University of Bordeaux, Bordeaux, France (A.C., A.I., F.L.L.).

Background Managing soft-tissue sarcoma (STS) relies on histologic grade, which is the strongest prognostic factor and a routine assessment at biopsy. However, underestimation of histologic grade may occur because of tumor heterogeneity. Purpose To identify MRI features that are associated with high-grade STS (grade III) and to determine the relationship between MRI features and patient survival. Read More

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http://dx.doi.org/10.1148/radiol.2019181659DOI Listing
April 2019
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Longitudinal Characterization of Cortical Lesion Development and Evolution in Multiple Sclerosis with 7.0-T MRI.

Radiology 2019 Apr 9:181719. Epub 2019 Apr 9.

From the A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Bldg 149, 13th St, Charleston, MA 02129 (C.A.T., T.E.G., E.H., R.A.O., C.L., C.M.); Harvard Medical School, Boston, MA (C.A.T., T.E.G., E.H., C.L., C.M.); Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden (T.E.G.); Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy (M.P.S.); Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA (J.A.S.); and Department of Neurosciences, University of California San Diego, San Diego, CA (R.P.K.).

Background Cortical lesions develop early in multiple sclerosis (MS) and play a major role in disease progression. MRI at 7.0 T shows high sensitivity for detection of cortical lesions as well as better spatial resolution and signal-to-noise ratio compared with lower field strengths. Read More

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http://dx.doi.org/10.1148/radiol.2019181719DOI Listing
April 2019
2 Reads

Diffusion-weighted Imaging of Prostate Cancer: Revisiting Occam's Razor.

Radiology 2019 Apr 2:190371. Epub 2019 Apr 2.

From the Department of Radiology, New York University School of Medicine, NYU Langone Health, 660 1st Ave, New York, NY 10016.

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http://dx.doi.org/10.1148/radiol.2019190371DOI Listing
April 2019
1 Read
6.867 Impact Factor

Redefining DISH: A Catalyst for Advancement of Research?

Authors:
John J Block

Radiology 2019 Apr 2:190470. Epub 2019 Apr 2.

From the Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Medical Center North CCC-1121, 1161 Medical Center Dr, Nashville, TN 37232-2675.

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http://dx.doi.org/10.1148/radiol.2019190470DOI Listing
April 2019
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Good News for Older Women Undergoing Screening Mammography with Digital Breast Tomosynthesis.

Radiology 2019 Apr 2:190426. Epub 2019 Apr 2.

From the Department of Radiology and Biomedical Imaging, Yale School of Medicine, 333 Cedar St, PO Box 208042, New Haven, CT 06520-8042.

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http://dx.doi.org/10.1148/radiol.2019190426DOI Listing
April 2019
1 Read

Diffusion-weighted MRI in Multicenter Trials of Breast Cancer.

Radiology 2019 Apr 2:190446. Epub 2019 Apr 2.

Department of Radiology, University of California, San Francisco, San Francisco, Calif †.

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http://dx.doi.org/10.1148/radiol.2019190446DOI Listing
April 2019
1 Read

Clinical Imaging Research: Higher Evidence, Global Collaboration, Improved Reporting, and Data Sharing Are the Grand Challenges.

Radiology 2019 Apr 2:181796. Epub 2019 Apr 2.

From the Department of Radiology, Charité-Universitätsmedizin Berlin, Humboldt-Universität and Freie Universität zu Berlin, Schumannstr 20/21, Berlin 10117, Germany (M.D., M.B.); Berlin Institute of Health, Berlin, Germany (M.D., S.T.); Department of Radiology, St. Vincent's University Hospital School of Medicine, University College Dublin, Dublin, Ireland (J.D.D.); and Department of Radiology, Beth Israel Deaconess Medical Center, Harvard University, Boston, Mass (H.Y.K.).

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http://dx.doi.org/10.1148/radiol.2019181796DOI Listing
April 2019
1 Read

MRI Evaluation of Lymphatic Abnormalities in the Neck and Thorax after Fontan Surgery: Relationship with Outcome.

Radiology 2019 Apr 2:180877. Epub 2019 Apr 2.

From the Department of Radiology (D.M.B., D.S.) and Division of Cardiology (A.G.D., E.M.P., R.E.M., J.A.J., H.G., M.L.O., M.A.F., M.A.H., S.L.P., K.K.W., D.J.G., J.R., A.C.G., M.J.G., J.J.R., Y.D.), Children's Hospital of Philadelphia, 34th and Civic Center Blvd, Philadelphia, PA 19104; and University of Pennsylvania School of Medicine, Philadelphia, PA (D.M.B., A.G.D., H.G., M.L.O., M.A.F., M.A.H., S.L.P., K.K.W., D.S., D.J.G., J.R., A.C.G., M.J.G., J.J.R., Y.D.).

Background The Fontan operation is performed for surgical palliation of single ventricle physiology. This operation is usually preceded by a superior cavopulmonary connection (SCPC); lymphatic abnormalities after SCPC may be demonstrated at MRI and prior to the Fontan operation. Purpose To determine if the degree of neck and thoracic lymphatic abnormalities at T2-weighted MRI in patients after superior cavopulmonary connection (SCPC) correlated with surgical outcomes from the Fontan procedure. Read More

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http://dx.doi.org/10.1148/radiol.2019180877DOI Listing
April 2019
2 Reads

VERDICT MRI for Prostate Cancer: Intracellular Volume Fraction versus Apparent Diffusion Coefficient.

Radiology 2019 Apr 2:181749. Epub 2019 Apr 2.

From the UCL Centre for Medical Imaging, University College London, 2nd Floor Charles Bell House, 43-45 Foley Street, London W1W 7TS, England (E.W.J., E.B.C., H.S.S., J.O., M.B.A., D. Atkinson, S.P.); UCL Centre for Medical Image Computing, London, England (E.B.C., U.F., B.Y., S.O., D.H., D. Alexander, E.P.); UCL Centre for Molecular Intervention, London, England (H.P., S.H., H.W.); Department of Histopathology, University College Hospital, London, England (D.P., M.R.J., A.F.); Department of Radiology (J.C.) and Centre for Medical Imaging (J.C., W.P., A.S.), University College Hospital, London, England; Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, England (F.G., A.G., C.M.M., M.E.); and Department of Surgery and Cancer, Imperial College London, London, England (H.U.A.).

Background Biologic specificity of diffusion MRI in relation to prostate cancer aggressiveness may improve by examining separate components of the diffusion MRI signal. The Vascular, Extracellular, and Restricted Diffusion for Cytometry in Tumors (VERDICT) model estimates three distinct signal components and associates them to (a) intracellular water, (b) water in the extracellular extravascular space, and (c) water in the microvasculature. Purpose To evaluate the repeatability, image quality, and diagnostic utility of intracellular volume fraction (FIC) maps obtained with VERDICT prostate MRI and to compare those maps with apparent diffusion coefficient (ADC) maps for Gleason grade differentiation. Read More

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http://dx.doi.org/10.1148/radiol.2019181749DOI Listing
April 2019
3 Reads

Criteria for Early-Phase Diffuse Idiopathic Skeletal Hyperostosis: Development and Validation.

Radiology 2019 Apr 2:181695. Epub 2019 Apr 2.

From the Departments of Orthopedic Surgery (J.S.K., W.P.G., J.W., F.C.O., J.J.V.) and Radiology (S.F.O., W.F., F.A.M.H., P.A.d.J.), University Medical Center Utrecht, Box 85500, 3508 GA, Utrecht, the Netherlands; and Department of Radiology, National Jewish Health, Denver, Colo (E.A.R., D.A.L.).

Background Diffuse idiopathic skeletal hyperostosis (DISH) is a condition characterized by the formation of new bone along the anterolateral spinal column at four adjacent vertebral bodies. Purpose To propose and validate criteria for the early phase of DISH by using CT data from two large-scale retrospective cohorts, each with 5-year follow-up. Materials and Methods For this retrospective study, CT data at baseline and follow-up in 1367 patients (cohort I) from 2004 to 2011 were evaluated by two observers to define no DISH, early-stage DISH, and definite DISH on the basis of interval development of consecutive complete or incomplete bone bridges. Read More

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http://dx.doi.org/10.1148/radiol.2019181695DOI Listing
April 2019
2 Reads

Digital 2D versus Tomosynthesis Screening Mammography among Women Aged 65 and Older in the United States.

Radiology 2019 Apr 2:181637. Epub 2019 Apr 2.

From the Department of Radiology (M.B., N.P., C.D.L.), Institute for Technology Assessment (S.M.), and Department of Medicine (A.M.M.), Massachusetts General Hospital, 55 Fruit St, WAC 240, Boston, MA 02114.

Background Although breast cancer incidence and mortality rates increase with advancing age, there are limited data on the benefits and risks of screening mammography in older women and on the performance of two-dimensional digital mammography (DM) and digital breast tomosynthesis (DBT) in older women. Purpose To compare performance metrics of DM and DBT among women aged 65 years and older. Materials and Methods For this retrospective study, consecutive screening mammograms in patients aged 65 years and older from March 2008 to February 2011 (DM group) and from January 2013 to December 2015 (DBT group) were reviewed. Read More

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http://dx.doi.org/10.1148/radiol.2019181637DOI Listing
April 2019
1 Read

Bariatric Embolization of Arteries for the Treatment of Obesity (BEAT Obesity) Trial: Results at 1 Year.

Radiology 2019 Apr 2:182354. Epub 2019 Apr 2.

From the Russell H. Morgan Department of Radiology and Radiological Science (C.R.W., J.V., B.P.H., O.A., F.N., K.P., K.H., T.D., H.Z., D.L.K.), Department of Medicine (E.J.S.), Department of Surgery (K.E.S.), and Department of Psychiatry and Behavioral Sciences (T.H.M.), The Johns Hopkins University School of Medicine, Baltimore, MD 21287; Department of Health, Behavior, and Society (L.J.C.) and Department of Biostatistics (R.E.T.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD; The Johns Hopkins University School of Medicine, Baltimore, MD (G.O.A., S.B.); Department of Radiology, Mount Sinai Hospital, New York, NY (A.M.F., R.S.P.); and Department of Radiology, Piedmont Healthcare, Atlanta, GA (A.A.).

Background Bariatric embolization is a new endovascular procedure to treat patients with obesity. However, the safety and efficacy of bariatric embolization are unknown. Purpose To evaluate the safety and efficacy of bariatric embolization in severely obese adults at up to 12 months after the procedure. Read More

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http://dx.doi.org/10.1148/radiol.2019182354DOI Listing
April 2019
5 Reads

Cinematic Rendering Following a Bone Marrow Harvesting Procedure.

Radiology 2019 Apr 2:190204. Epub 2019 Apr 2.

From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 4260 C, Baltimore, MD 21287.

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http://dx.doi.org/10.1148/radiol.2019190204DOI Listing
April 2019
2 Reads

Will AI Improve Tumor Delineation Accuracy for Radiation Therapy?

Authors:
Zheng Chang

Radiology 2019 Mar 26:190385. Epub 2019 Mar 26.

From the Department of Radiation Oncology, Duke University Medical Center, Box 3295, Durham, NC 27710.

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http://dx.doi.org/10.1148/radiol.2019190385DOI Listing
March 2019
2 Reads

Intraoperative MRI for Treatment of High-Grade Glioma: Is It Cost-effective?

Radiology 2019 Mar 26:190337. Epub 2019 Mar 26.

From the Professor of Radiology Emeritus, Wake Forest University School of Medicine, 70 Three Mile Rd, Etna, NH 03750.

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http://dx.doi.org/10.1148/radiol.2019190337DOI Listing
March 2019
2 Reads

Diving into a Shallow Pool: Endovascular Treatment for Basilar Artery Occlusion.

Authors:
Steven W Hetts

Radiology 2019 Mar 26:190375. Epub 2019 Mar 26.

From the Department of Radiology and Biomedical Imaging, Division of Interventional Neuroradiology, University of California, San Francisco, 505 Parnassus Ave, L-351, San Francisco, CA 94143-0628.

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http://dx.doi.org/10.1148/radiol.2019190375DOI Listing
March 2019
1 Read

Screening of Bone Density at CT: An Overlooked Opportunity.

Authors:
Andrew D Smith

Radiology 2019 Mar 26:190434. Epub 2019 Mar 26.

From the Department of Radiology, University of Alabama at Birmingham, 619 19th St S, JTN 452, Birmingham AL 35249-6830.

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http://dx.doi.org/10.1148/radiol.2019190434DOI Listing
March 2019
1 Read

Moving toward Noninvasive, Focused Ultrasound Therapeutic Delivery of Drugs in the Brain: Prolonged Opening of Blood-Brain Barrier May Not Be Needed.

Radiology 2019 Mar 26:190410. Epub 2019 Mar 26.

From the Cardiovascular Division and Robert M. Berne Cardiovascular Research Center, University of Virginia, UVA CVRC, MR4 RM3147, 409 Lane Rd, Charlottesville, VA 22908 (A.L.K.); and Department of Radiology, Brigham and Women's Hospital, Boston, Mass (N.J.M.).

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http://dx.doi.org/10.1148/radiol.2019190410DOI Listing
March 2019
4 Reads

Preferences in Cardiac Testing: Why Patient Experience Matters.

Radiology 2019 Mar 19:190309. Epub 2019 Mar 19.

From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110 (P.K.W.); and Department of Cardiovascular Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio (T.N.).

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http://dx.doi.org/10.1148/radiol.2019190309DOI Listing
March 2019
3 Reads

Density Variation among Mammographic Modalities Will Likely Impact Imaging Management and Risk Stratification.

Radiology 2019 Mar 19:190342. Epub 2019 Mar 19.

From the Department of Radiology and Biomedical Imaging, Yale School of Medicine, 333 Cedar St, New Haven, CT 06520.

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http://dx.doi.org/10.1148/radiol.2019190342DOI Listing
March 2019
2 Reads

How Can We Reduce Unnecessary Procedures after Screening Mammography?

Authors:
Per Skaane

Radiology 2019 Mar 19:190324. Epub 2019 Mar 19.

From the Department of Radiology and Nuclear Medicine, Oslo University Hospital, The Norwegian Radium Hospital, Breast Imaging Center, Ullernchausseen 64-66, Postboks 4950 Nydalen, 0424 Oslo, Norway.

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http://dx.doi.org/10.1148/radiol.2019190324DOI Listing
March 2019
1 Read

Forbidden Fruit: Some Berry Aneurysms Might Best Be Left Alone.

Authors:
Harry J Cloft

Radiology 2019 Mar 19:190355. Epub 2019 Mar 19.

From the Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905.

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http://dx.doi.org/10.1148/radiol.2019190355DOI Listing
March 2019
2 Reads

Deep Learning for Automated Contouring of Primary Tumor Volumes by MRI for Nasopharyngeal Carcinoma.

Radiology 2019 Mar 26:182012. Epub 2019 Mar 26.

From the Department of Radiation Oncology (L.L., G.Q.Z., J.Y.L., L.L.T., S.M.H., J.M., Y.S.) and Imaging Diagnosis and Interventional Center (C.M.X.), Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, 651 Dongfeng Rd East, Guangzhou 510060, China; Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong SAR (Q.D., Y.M.J., P.A.H., H.C.); Imsight Medical Technology, Shenzhen, China (H.C.); Divisions of Radiation Oncology (J.T.S.W., M.L.K.C.) and Medical Sciences (M.L.K.C.), National Cancer Center Singapore, Singapore; Oncology Academic Programme, Duke-NUS Medical School, Singapore (M.L.K.C.); Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, China (Y.Q.T.); Department of Radiation Oncology, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, China (W.L.C.); Department of Radiation Oncology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China (B.A.S.); Department of Radiation Oncology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China (F.L.); Department of Radiation Oncology, Zhejiang Provincial Cancer Hospital, Key Laboratory of Radiation Oncology of Zhejiang Province, Hangzhou, China (C.J.T.); and Department of Radiation Oncology, Nanjing Medical University Affiliated Cancer Hospital, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, Nanjing, China (N.J.).

Background Nasopharyngeal carcinoma (NPC) may be cured with radiation therapy. Tumor proximity to critical structures demands accuracy in tumor delineation to avoid toxicities from radiation therapy; however, tumor target contouring for head and neck radiation therapy is labor intensive and highly variable among radiation oncologists. Purpose To construct and validate an artificial intelligence (AI) contouring tool to automate primary gross tumor volume (GTV) contouring in patients with NPC. Read More

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http://pubs.rsna.org/doi/10.1148/radiol.2019182012
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http://dx.doi.org/10.1148/radiol.2019182012DOI Listing
March 2019
15 Reads

Cost-effectiveness of Intraoperative MRI for Treatment of High-Grade Gliomas.

Radiology 2019 Mar 26:182095. Epub 2019 Mar 26.

From the School of Medicine (P.A., R.S., M.G.B., C.L.R., J.P.), Department of Neurosurgery (A.R.W., R.C.R., J.A.S., D.R.S.D., V.C., J.S.P., A.A.K.), and Department of Radiation Oncology (J.D.M.), University of California-San Diego, 9300 Campus Point Dr, Mail Code 7893, La Jolla, CA 92037.

Background Intraoperative MRI has been shown to improve gross-total resection of high-grade glioma. However, to the knowledge of the authors, the cost-effectiveness of intraoperative MRI has not been established. Purpose To construct a clinical decision analysis model for assessing intraoperative MRI in the treatment of high-grade glioma. Read More

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http://dx.doi.org/10.1148/radiol.2019182095DOI Listing
March 2019
5 Reads

Mechanical Thrombectomy in Subtypes of Basilar Artery Occlusion: Relationship to Recanalization Rate and Clinical Outcome.

Radiology 2019 Mar 26:181924. Epub 2019 Mar 26.

From the Department of Radiology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.

Background Acute stroke because of basilar artery occlusion (BAO) represents 1% of all ischemic strokes. However, recanalization rates and treatment outcome for the different pathologic subtypes of BAO stroke are not fully understood. Purpose To compare the recanalization rate and clinical outcomes of mechanical thrombectomy in different subtypes of BAO. Read More

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http://dx.doi.org/10.1148/radiol.2019181924DOI Listing
March 2019
2 Reads

Opportunistic Osteoporosis Screening at Routine Abdominal and Thoracic CT: Normative L1 Trabecular Attenuation Values in More than 20 000 Adults.

Radiology 2019 Mar 26:181648. Epub 2019 Mar 26.

From the Department of Radiology, University of Wisconsin School of Medicine and Public Health, E3/311 Clinical Science Center, 600 Highland Ave, Madison, WI 53792-3252 (S.J., P.M.G., T.J.Z., S.J.L., P.J.P.); and Department of Diagnostic Radiology, National Institutes of Health Clinical Center, Bethesda, Md (R.M.S.).

Background Abdominal and thoracic CT provide a valuable opportunity for osteoporosis screening regardless of the clinical indication for imaging. Purpose To establish reference normative ranges for first lumbar vertebra (L1) trabecular attenuation values across all adult ages to measure bone mineral density (BMD) at routine CT. Materials and Methods Reference data were constructed from 20 374 abdominal and/or thoracic CT examinations performed at 120 kV. Read More

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http://dx.doi.org/10.1148/radiol.2019181648DOI Listing
March 2019
2 Reads

Rapid Short-pulse Ultrasound Delivers Drugs Uniformly across the Murine Blood-Brain Barrier with Negligible Disruption.

Radiology 2019 Mar 26:181625. Epub 2019 Mar 26.

From the Departments of Bioengineering (S.V.M., A.N.P., M.J.C., J.L., J.J.C.) and Chemistry (T.G.C., N.J.L.), Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom.

Background Previous work has demonstrated that drugs can be delivered across the blood-brain barrier by exposing circulating microbubbles to a sequence of long ultrasound pulses. Although this sequence has successfully delivered drugs to the brain, concerns remain regarding potentially harmful effects from disrupting the brain vasculature. Purpose To determine whether a low-energy, rapid, short-pulse ultrasound sequence can efficiently and safely deliver drugs to the murine brain. Read More

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http://dx.doi.org/10.1148/radiol.2019181625DOI Listing
March 2019
3 Reads

Dual-Energy CT in Children: Imaging Algorithms and Clinical Applications.

Radiology 2019 Mar 26:182289. Epub 2019 Mar 26.

From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, Mo 63110 (M.J.S.); and Siemens Healthineers, Malvern, Pa (J.C.R.G.).

Dual-energy CT enables the simultaneous acquisition of CT images at two different x-ray energy spectra. By acquiring high- and low-energy spectral data, dual-energy CT can provide unique qualitative and quantitative information about tissue composition, allowing differentiation of multiple materials including iodinated contrast agents. The two dual-energy CT postprocessing techniques that best exploit the advantages of dual-energy CT in children are the material-decomposition images (which include virtual nonenhanced, iodine, perfused lung blood volume, lung vessel, automated bone removal, and renal stone characterization images) and virtual monoenergetic images. Read More

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http://dx.doi.org/10.1148/radiol.2019182289DOI Listing
March 2019
2 Reads

Detecting Different Cell Populations Using Multispectral F MRI.

Authors:
Jeff W M Bulte

Radiology 2019 Mar 19:190377. Epub 2019 Mar 19.

From The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, Departments of Oncology, Biomedical Engineering and Chemical & Biomolecular Engineering, Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, 733 N Broadway, MRB 659, Baltimore, MD 21205.

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March 2019
2 Reads

Case 268.

Radiology 2019 Apr;291(1):259-260

From the Department of Radiology, Norfolk and Norwich University Hospitals, Colney Lane, Norwich NR4 7UY, England.

History A 65-year-old man presented to the emergency department with a 1-week history of constipation, which was associated with increasing abdominal distention and not passing flatus. Four weeks prior to the current admission he had been diagnosed with metastatic primary adenocarcinoma of the appendix. One week ago, he had been hospitalized with small-bowel obstruction, for which he required laparotomy and loop ileostomy. Read More

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http://dx.doi.org/10.1148/radiol.2019170367DOI Listing
April 2019
2 Reads

Case 264: A Case of Osseous Sarcoidosis.

Radiology 2019 Apr;291(1):261-266

From the Department of Radiology, CHU Toulouse-Purpan, Place du docteur Baylac, 31059 Toulouse Cedex 9, France.

History A 28-year-old woman presented to the emergency department with painful swelling of the third finger on her right hand, which developed quickly. She had no relevant medical or surgical history. Her pain was worse at night, with stiffness decreasing during the morning. Read More

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http://dx.doi.org/10.1148/radiol.2019162264DOI Listing
April 2019
2 Reads

Thyroid Nodules by US: More Imaging and/or More Intervention?

Authors:
W Dennis Foley

Radiology 2019 Apr 19;291(1):100-101. Epub 2019 Feb 19.

From the Department of Radiology, Medical College-Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226.

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http://dx.doi.org/10.1148/radiol.2019190189DOI Listing
April 2019
1 Read

Cinematic Rendering of Neurofibromatosis Type I Gastrointestinal Stromal Tumors.

Radiology 2019 Mar 19:190104. Epub 2019 Mar 19.

From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 600 N Wolfe St, Baltimore, MD 21287.

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http://dx.doi.org/10.1148/radiol.2019190104DOI Listing
March 2019
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Attenuation Changes in ASPECTS Regions: A Surrogate for CT Perfusion-based Ischemic Core in Acute Ischemic Stroke.

Radiology 2019 Mar 19:182041. Epub 2019 Mar 19.

From the Departments of Radiology (P.R., L.T.R., M.P.F., D.P., W.G.K.) and Neuroradiology (F.D.), University Hospital, LMU Munich, Marchioninistr 15, 81377 Munich, Germany; Institute for Diagnostic and Interventional Radiology, University Medical Center Rostock, Rostock, Germany (K.M.T.); Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Canada (N.D.F., W.G.K.); and Department of Neuroradiology, University Hospital Schleswig-Holstein, Luebeck, Germany (A.K.).

Background Recent studies have proven the effectiveness of thrombectomy up to 24 hours after stroke onset for patients with specific criteria at advanced CT or MRI. Clinical implementation of treatment in this extended time window remains a challenge, as many stroke centers do not routinely use advanced imaging. Purpose To determine whether automated cerebral x-ray attenuation measurements at noncontrast CT provide information on the presence of CT perfusion-defined ischemic core as applied in late time windows for thrombectomy. Read More

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http://dx.doi.org/10.1148/radiol.2019182041DOI Listing
March 2019
2 Reads

Patient Preferences for Coronary CT Angiography with Stress Perfusion, SPECT, or Invasive Coronary Angiography.

Radiology 2019 Mar 19:181409. Epub 2019 Mar 19.

From the Department of Cardiology, Johns Hopkins Hospital and Health System, Baltimore, Md (A.M., A.L.V., M.R.O., M.M., C.C., P.M.); Departments of Radiology (M.D., M.L., M.R., S.F., M.P.) and Anesthesiology (E.S.), Charité-Universitätsmedizin Berlin, Humboldt-Universität and Freie Universität zu Berlin, Schumannstr 20/21, Berlin 10117, Germany; Department of Radiology, Keio University School of Medicine, Tokyo, Japan (Y.T.); Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil (C.E.R.); Department of Medicine, Division of Cardiology, St Luke's International Hospital, Tokyo, Japan (H.N.); Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark (K.F.K.); Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands (J.G.); Department of Radiology, Mount Elizabeth Hospital, Singapore (J.H.); Laboratory of Cardiac Energetics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md (M.Y.C.); Department of Radiology, Mie University Hospital, Tsu, Japan (K.K.); Department of Radiology, Albert Einstein Hospital, São Paulo, Brazil (C.N.); Department of Radiology, Beth Israel Deaconess Medical Center, Harvard University, Boston, Mass (M.E.C.); Department of Radiology, University of Ottawa Faculty of Medicine, Ottawa, Canada (F.J.R.); Department of Cardiology, National Heart Center Singapore, Singapore (S.Y.T.); and Department of Radiology, Toronto General Hospital, Toronto, Canada (N.P.).

Background Patient preference is pivotal for widespread adoption of tests in clinical practice. Patient preferences for invasive versus other noninvasive tests for coronary artery disease are not known. Purpose To compare patient acceptance and preferences for noninvasive and invasive cardiac imaging in North and South America, Asia, and Europe. Read More

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http://dx.doi.org/10.1148/radiol.2019181409DOI Listing
March 2019
2 Reads
6.867 Impact Factor