Eric Barnes

CT
Krypton replaces xenon for patient-friendly ventilation lung scan
Tuesday, November 29 | 10:40 a.m.-10:50 a.m. | SSG03-02 | Room S504ABVentilation lung scans with high-resolution CT can be used to examine lung morphology and function in patients with chronic obstructive pulmonary disease. Replacing xenon with stable krypton gas might make the procedure easier for patients to complete, according to a new study.
November 9, 2011
CT
Dual-energy measurements aid electronic cleansing in VC
Tuesday, November 29 | 10:30 a.m.-10:40 a.m. | SSG13-01 | Room S403AA study of dual-energy index values at the boundary between colonic mucosa and air found significant enough differences between components of the bowel lumen to develop new virtual colonoscopy computer-aided detection schemes that will be more accurate than current-generation systems that rely on CT attenuation values.
November 9, 2011
CT
CT approaches IVUS in plaque detection
Monday, November 28 | 3:30 p.m.-3:40 p.m. | SSE03-04 | Room S502ABA study comparing CT to intravascular ultrasound (IVUS) for plaque detection found that CT isn't quite ready to take on ultrasound -- but it's not far off, the authors concluded.
November 9, 2011
CT
Extent of perfusion defects predicts PE outcomes
Monday, November 28 | 3:30 p.m.-3:40 p.m. | SSE05-04 | Room S404CDQuantifying perfusion defects at dual-energy CT helps identify pulmonary embolism (PE) patients at risk of adverse outcomes and should be part of their risk assessment, say investigators from the University of Munich.
November 9, 2011
CT
CT equivalent to MRI in evaluating ventricular size, function
Monday, November 28 | 3:10 p.m.-3:20 p.m. | SSE03-02 | Room S502ABVentricular size and function are important for diagnosing and managing patients with several conditions. Fortunately, dual-source CT has caught up to the reference standard, MRI, for the task, say researchers from the Medical University of South Carolina.
November 9, 2011
CT
Liver CT shows high accuracy in steatosis assessment
Monday, November 28 | 3:00 p.m.-3:10 p.m. | SSE08-01 | Room E450BUnenhanced CT is highly specific for detecting and characterizing steatosis or fatty liver, according to researchers from the University of Wisconsin, in cooperation with Dr. Seong Ho Park and colleagues from Asan Medical Center.
November 9, 2011
CT
High-pitch, free-breathing DSCT improves pulmonary embolism assessment
Monday, November 28 | 11:20 a.m.-11:30 a.m. | MSVE21-10 | Room E353AHigh-pitch CT pulmonary angiography with dual-source CT (DSCT) in freely breathing patients consistently provides diagnostic image quality, suppresses artifacts, and has the potential to further reduce contrast material usage, according to new research from Goethe University.
November 9, 2011
CT
Monochromatic images erase beam-hardening artifacts
Monday, November 28 | 11:10 a.m.-11:20 a.m. | SSC16-05 | Room S403BSynthesized monochromatic imaging with fast kV switching at 40 keV to 70 keV may boost the magnitude and uniformity of aortic enhancement for a wide range of body sizes, say researchers at Duke University.
November 9, 2011
CT
Perfusion quantified in normal, infarcted myocardium
Monday, November 28 | 10:50 a.m.-11:00 a.m. | SSC01-03 | Room S502ABA new CT study from the Medical University of South Carolina found significant differences in myocardial perfusion parameters for ischemic and infarcted myocardium compared with normal myocardium.
November 9, 2011
CT
Newer readers need contrast for acute appendix
Monday, November 28 | 9:00 a.m.-9:10 a.m. | MSVE21-02 | Room E353AHow important is contrast for diagnosing suspected appendicitis? Researchers from New York University's Langone Medical Center and department of radiology conducted a novel study that examined appendiceal visualization rates in the same patient with and without oral and IV contrast.
November 9, 2011
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Digital X-Ray
Chest x-rays reveal atherosclerosis in patients undergoing amputations
Lower limb amputation is an increasingly common major complication of advanced peripheral arterial disease and diabetes mellitus.
Cardiac Mri Adobe Samunella
MRI
3D MRI technique helps plan treatment for pediatric heart conditions
Images of a 39-year-old who underwent screening mammography. Right craniocaudal (left) and mediolateral oblique (middle) views from preoperative mammography show suspicious grouped fine pleomorphic calcifications (arrows). After biopsy showed ductal carcinoma of situ (DCIS), patient underwent breast-conserving surgery, yielding final diagnosis of ductal carcinoma in situ (intermediate grade, hormone receptor positive). (Right) Screenshot of an output of a commercial AI tool applied to preoperative mammography. AI detected right breast lesion with score of 95% on both views (concentric colored circles). Present study’s reviewing radiologist deemed AI marking to correspond with site of DCIS.
Womens Imaging
Could AI scoring help with managing DCIS?
Axial contrast-enhanced CT scan in a 28-year-old premenopausal woman shows an incidentally detected solid-appearing left ovarian lesion (solid arrow) anterior to the uterus (U), associated with trace ascites in the right adnexa and cul de sac (dashed arrows). At pathologic analysis, this was shown to be ovarian dysgerminoma. Two readers misdiagnosed this lesion, one as a leiomyoma and one as an ovarian fibroma.
CT
Clinicians, beware: CT diagnostic accuracy varies by adnexal lesion type
Erin Stephens
Practice Management
Radiology coding update for 2026
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German study supports GAE as routine treatment for knee osteoarthritis
By Liz Carey
Genicular artery embolization (GAE) by an interventional radiologist could be an effective alternative to knee replacement or long-term medication.
December 3, 2024
Peri-interventional digital subtraction angiography (DSA) of the descending genicular artery (DSA), a diagnostic procedure to view the inner surface of blood vessels, (green arrow) in a patient with symptomatic knee osteoarthritis of the right leg. On the left, the pre-interventional image with a clearly visible hyperemic blush (red box). On the right, the post-interventional DSA after embolization with Imepenem-Cilastatin. A completely eliminated blush is observed while preserving skin collaterals (orange arrows). Image courtesy of the RSNA.
AuntMinnie 2024: CT shows body composition changes in patients treated with Ozempic
By Kate Madden Yee
In 2024, our most highly viewed story covered how automated CT-based AI tools can visualize body composition changes in patients using Ozempic.
December 2, 2024
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Portable, ultralow-field MRI improves stroke diagnosis
By Kate Madden Yee
Portable, ultralow-field MRI can help clinicians diagnose acute ischemic stroke, according to study results presented December 2 at RSNA 2024.
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Stroke Mri
AI successful in replacing radiologist in double-reading settings
By Amerigo Allegretto
AI could lead to lessened workloads and increased consensus discussions in a real-world setting involving double reading of screening mammograms.
December 2, 2024
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Stone countertop workers at risk of silicosis
By Amerigo Allegretto
CT imaging shows that engineered stone countertop workers are at risk of developing the lung disease silicosis.
December 2, 2024
Contrast-enhanced chest CT shows upper predominant fibrosis/lung scarring (red oval), solid masses adjacent to a left-sided pneumothorax (yellow oval) and diffuse silicotic nodules (purple circle). This patient had a history of working in the countertop-cutting industry (15 years), smoking cigarettes (10 pack years), and active tuberculosis (treated 7 years prior and excluded at the time of this image with laboratory testing). Image courtesy of the RSNA.
Characterizing body fat with MRI helps predict Alzheimer's risk
By Kate Madden Yee
Characterizing an individual's type of body fat using body MRI can help predict Alzheimer's disease risk up to 20 years before symptoms manifest.
December 2, 2024
Comparison of cerebral blood flow in 65 cognitively normal midlife individuals showed that individuals with obesity and high visceral adipose tissue have reduced blood flow in the temporal and parietal regions of the brain. Images courtesy of the RSNA.
New approach to dysanapsis could enhance early COPD screening
By Liz Carey
A new way to identify a discrete form of dysanapsis could help clarify disproportionate growth between size of the airway tree and lung size.
December 1, 2024
Lung Disease Aguilera Rsna
Deep learning boosts myocardial function assessment on CCTA
By Kate Madden Yee
Deep learning improves coronary CT angiography's (CCTA) ability to quantify myocardial function.
December 1, 2024
Heart Plaque
FAPI-PET/CT shows promise in diagnosing breast cancer
By Will Morton
Gallium-68 fibroblast activation protein inhibitor (FAPI) PET/CT shows promise for detecting primary and metastatic breast cancer.
December 1, 2024
Breast Cancer
Majority of women welcome AI into breast cancer screening
By Amerigo Allegretto
Many women are optimistic about AI's use in breast cancer screening.
December 1, 2024
Ottavia Battaglia, MD, a radiology resident at the Istituto Europeo di Oncologia (IEO) in Milan, Italy, discussed her team's findings at RSNA 2024, showing that the majority of women are optimistic about AI's use in breast cancer screening.
AI scoring helps streamline mammo turnaround times
By Amerigo Allegretto
AI scoring could help streamline mammography turnaround times, mitigating the impact of staff shortages in breast imaging.
December 1, 2024
Gopal Vijayaraghavan MD, from UMass Memorial Health in Worcester, MA, discussed his team’s findings at RSNA 2024 on how AI can prioritize mammography interpretation lists to reduce turnaround times.
Siemens broadens photon-counting CT portfolio
By Erik L. Ridley
Siemens is introducing a new dual-source scanner and a single-source system as part of its new Naeotom Alpha class of photon-counting systems.
December 1, 2024
Naeotom Alpha.Pro dual-source CT scanner. Image courtesy of Siemens Healthineers.
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