Eric Barnes

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Measuring lean body weight can optimize CT contrast dose

Researchers at Duke University report that radiologists can minimize contrast dose and optimize enhancement of focal lesions by basing their contrast administration protocols on patients' lean body weight, rather than on total weight.

July 21, 2009

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Virtual gastroscopy distinguishes benign from malignant ulcers

Three-dimensional CT imaging of the stomach has improved to the point where it's just as useful as endoscopy for differentiating benign from malignant gastric ulcers, albeit with important differences, say researchers from Taiwan.

July 20, 2009

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Prospectively gated coronary CTA nearly equals normal-dose scans

Researchers in Italy report that low-dose prospectively gated coronary CT angiography (CTA) scans are nearly equivalent to retrospectively gated exams in diagnostic accuracy, while reducing radiation dose by up to 72%, according to an article published in the Journal of the American College of Cardiology.

July 16, 2009

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VC is cost-effective for screening; tiny polyps can be ignored

Virtual colonoscopy is a cost-effective way to screen for colorectal cancer -- provided that individuals with tiny lesions aren't referred for polypectomy, according to the results of a new study from France.

July 14, 2009

Repeated calcium scans increase cancer risk, study finds

Patients who undergo repeated coronary artery calcium (CAC) scans may be setting themselves up for a cancer diagnosis, according to a new study that estimated the risks but not the potential benefits of CAC scan protocols and frequencies.

July 12, 2009

Virtual colonoscopy preferred for surveillance follow-up

Patients referred for polyp surveillance after virtual colonoscopy are more likely to opt for another VC exam at follow-up, Italian researchers report. But patients want their follow-up scans sooner rather than later.

July 9, 2009

Dual-energy CT characterizes fat-containing pathologies

Identifying fat within lesions is important for narrowing the range of differential diagnoses and potentially avoiding unnecessary intervention. CT and MRI are usually less effective for lesions with low fat concentrations, but would dual-energy CT be better at sussing out fat-containing pathologies? The picture is mixed, according to researchers.

July 7, 2009

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High-pitch cardiothoracic CTA skips breath-holds and high doses

A new way to use CT angiography (CTA) to scan fast-moving targets -- such as fidgety children and grown-ups with rapid heartbeats -- is becoming routine at a hospital in France.

July 6, 2009

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Image Processing

CARS report: Liver segmentation tool allows manual fixes

BERLIN - German researchers believe they have found a better way to preserve the best aspects of automated and manual segmentation in CT liver images, according to a presentation at the Computer Assisted Radiology and Surgery (CARS) meeting.

June 30, 2009

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CARS report: New CAD tool follows lung nodules over time

BERLIN - It's easy to complain about the insanity of tracking lung nodule changes in multiple CT scans over time, but at least one group is doing something about it, according to a presentation at the Computer Assisted Radiology and Surgery (CARS) meeting.

June 29, 2009

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Ai Hand

LLMs rapidly evolving in nuclear medicine

Large language models (LLMs) are widely used to handle the large volume of text data generated in nuclear medicine.

2025 10 24 Jmri Said Fig2 Thumbnail

DWI with fat correction identifies liver scarring in MASLD patients

Emergency Sign

Ghost scans problematic in POCUS trauma exams

Prostate Imaging

PSMA-PET may require selective use to be cost-effective

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CEFUS visualizes carotid plaque volume

By Amerigo Allegretto

3D contrast-enhanced fusion ultrasound (CEFUS) can analyze carotid plaque volume burden and could help monitor plaque development over time.

January 4, 2024

Segmentation of the carotid artery included the reconstruction of the carotid artery from 3D CEFUS/3D CTA to enable volume quantifications. (a) Only shown for 3D CEFUS, a 3D cylindrical model was initialized from manually set circle marks of the vessel wall border (media-adventitia interface) in the common carotid artery and internal carotid artery. From the circles, a mesh of the vessel border (yellow delineation) was formed. (b) The contour of the contrast-filled lumen was outlined (red delineation), creating a lumenography into the final reconstructed 3D carotid model. The same segmentation procedure was performed on the corresponding 3D CTA. The images are available to use under a Creative Commons license: CC BY 4.0 DEED, Attribution 4.0 International.

Customized support reduces CT, MRI order errors

By Kate Madden Yee

Up to 44% of diagnostic errors are due to laboratory tests and radiology exams that were inappropriately ordered, according to new research.

January 4, 2024

Standardized reporting categorizes breast cancer detection methods

By Amerigo Allegretto

A standardized system can help radiologists accurately categorize the method of detection when performing image-guided breast biopsies.

January 4, 2024

Women Cancer Patient 400 (1)

Bone health a concern among lung transplant patients

Implementing a clinical bone health protocol may reduce fractures in lung transplant recipients.

January 3, 2024

Enlarged perivascular spaces in infant brains linked to autism risk

By Kate Madden Yee

Infants with enlarged perivascular spaces have a more than two-fold greater chance of developing autism compared to infants with normal-sized perivascular spaces.

January 3, 2024

Extra-axial cerebrospinal fluid (EA-CSF) and perivascular space (PVS) segmentation on a 24-month scan of a child who was diagnosed with autism. Image courtesy of Dea Garic, PhD, and Mark Shen, PhD.

PET/CT predicts brain tumors in melanoma patients

PET/CT scans have the potential to predict brain metastasis in melanoma patients.

January 3, 2024

A 49-year-old patient with primary clinical stage III melanoma underwent F-18 FDG-PET. The primary tumor Breslow thickness was 6.5 mm. On initial F-18 FDG-PET images, this patient had a high SUVmax (52), resulting in limited survival with the occurrence of brain metastasis in the first year of follow-up (horizontal arrow). Notably, during the course of the treatment, the patient underwent surgical removal of the primary tumor as well as lymph node dissection, followed by neoadjuvant radiotherapy and immunotherapy. Image courtesy of Cancers.

Elastography detects liver stiffness tied to heart failure

By Amerigo Allegretto

Sound touch elastography can noninvasively evaluate liver stiffness tied to chronic heart failure.

January 3, 2024

Liver Digital Tablet 400

What do radiologists say about what's next for ChatGPT in 2024?

As a new year begins, radiologists weigh in on what has impressed them most and what might be next for large language models such as ChatGPT.

January 2, 2024

Computer Puzzle 400

ChatGPT perpetuates racial and gender biases

ChatGPT-4 consistently produces clinical vignettes that stereotype certain races, ethnicities, and genders.

January 2, 2024

RadNet testing three retail in-store breast cancer screening operations

RadNet executives will spend the next 18 months learning what does and doesn't work for operating small in-store retail breast cancer screening clinics in three areas of the U.S.

January 2, 2024

A look at a high-definition 3D mammography system inside a MammogramNow clinic. The first to open in a Walmart Supercenter is located in Milford, DE. Photo courtesy of RadNet.

Racial, ethnic representation increases over time in NCDB

By Amerigo Allegretto

Representation of Hispanic and American Indian or Alaska Native individuals in the National Cancer Database (NCDB) has increased over time.

December 28, 2023

Hispanic Family 400

More than half of medical residents experience sexual harassment

By Kate Madden Yee

More than half of first year medical residents experience sexual harassment -- and up to a quarter of those who do are women, a team of researchers has found.

December 28, 2023

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