Eric Barnes

CT
Coronary calcium CT scans motivate lifestyle changes
A new study in the Journal of the American College of Cardiology found that patients with positive results on coronary artery calcium CT scans made important lifestyle changes that led to lower risk profiles for cardiac events four years later.
March 22, 2011
CT
Japan crisis spotlights radiation protection drugs
Americans worried about the nuclear crisis in Japan have cleared store shelves of potassium iodide as they seek protection from radiation-laced fallout. The frenzy has also drawn attention to specialized drugs and nutritional formulas designed to protect individuals from environmental radiation -- and prevent harm from medical imaging and radiation therapy.
March 21, 2011
CT
Fast 320-row CT produces lower dose in pancreas
The image quality of contrast-enhanced CT scans of the pancreas was pretty much equivalent between fast 320-detector-row contrast-enhanced scans of the pancreas and 64-detector-row scans, according to a new study in Radiology. But there were some differences, notably far lower radiation doses with the 320-row scans.
March 17, 2011
CT
VC study turns in high positive predictive value
A new study shows that virtual colonoscopy delivers a high positive predictive value for the identification of patients with clinically significant polyps, reinforcing the results of earlier studies concluding that VC can predict the need for conventional colonoscopy and polypectomy with few false-positive detections.
March 15, 2011
CT
Computer-assisted markup more accurate for lung nodules
What's the best way to measure lung nodules at follow-up CT? Researchers from Weill Cornell Medical College say that computer-assisted markup shows less variability than manual drawing of the nodule; accuracy is also aided by comparing more recent scans with prior scans side by side.
March 9, 2011
2011
Study recommends skipping gonad shields in pediatric x-rays
VIENNA - Gonad shielding is more trouble than it's worth, concluded Dutch researchers in a study of more than 700 children undergoing x-ray exams of the abdomen and pelvis. Shield placement is rarely correct, they said, and crucial anatomy ends up being covered even when performed correctly, especially in girls.
March 6, 2011
CT
High-pitch chest CT captures fast-moving babies
VIENNA - High-pitch chest CT is a robust technique that provides high-quality thoracic images of babies in motion -- quickly, without sedation, and at low radiation doses -- according to a study presented at the European Congress of Radiology.
March 5, 2011
CT
Radiographer's role grows in planning, image interpretation
VIENNA - As radiographers in Europe increasingly take over tasks once reserved for radiologists, investigators continue to find that their skills are often equivalent to if not better than those of their physician partners, according to two radiography presentations Saturday at the European Congress of Radiology.
March 4, 2011
CT
High-pitch DSCTA often repeated, but dose still lower
VIENNA - Nearly one in five coronary CT angiography scans acquired with an emerging high-pitch dual-source CT angiography (DSCTA) protocol needs to be repeated. But the low-dose acquisitions possible mean even repeated scans have lower overall doses than comparable 64-detector-row CTA scans, researchers reported at the European Congress of Radiology.
March 3, 2011
Interventional
CT limited for detection of subtle aortic tears
VIENNA - Even with electrocardiographic gating, CT angiography cannot confidently visualize subtle aortic tears of the ascending aorta. Transesophageal echocardiography may be a better option in some patients, according to a presentation Thursday at the European Congress of Radiology.
March 2, 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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XRAI (left) and GradCAM (right) heatmaps for true positive images. The original radiographs are on the left, the Grad-CAM activations and heatmaps are in the middle, and the XRAI activations and overlays are on the right. For the XRAI overlays, only regions reaching the 70th percentile of activation strength are shown. Images available under Creative Commons license (CC BY 4.0 DEED, Attribution 4.0 International) and courtesy of PLOS Digital Health.
Experts talk breast imaging's 2024 for Breast Cancer Awareness Month
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CEM has tradeoffs for imaging extremely dense breasts
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Ultrasound test detects 96% of ovarian cancers
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ACS: Breast cancer mortality decreases, disparities persist
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