Eric Barnes

[email protected]

Teniae coli landmarks guide navigation in VC

A new study in Radiology examines the use of teniae coli -- three thick bundles of muscle that run along the outer longitudinal layer of the colon's muscularis externa -- as a navigation and localization tool for virtual colonoscopy data. Researchers from the National Institutes of Health (NIH) in Bethesda, MD, believe that teniae coli, as extractable features of VC datasets, can significantly improve polyp localization over current methods.

January 1, 2008

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Sublingual nitroglycerin improves coronary CTA

Nitroglycerin significantly improves the results of coronary CT angiography (CTA) by dilating the coronary arteries before scanning, researchers in Belgium have reported. Their study found that vessel lumen diameters and average volumes were larger when nitroglycerin spray was administered sublingually before scanning. Their study appears in the January issue of the American Journal of Roentgenology.

December 30, 2007

CTA of the pancreas reduces failed resections

Used as a preoperative planning tool, multidetector-row CT angiography reduces the number of aborted pancreatic resections, according to new research from Beth Israel Deaconess Medical Center in Boston. The retrospective study found that the addition of contrast significantly improved the detection of vascular invasion that prevented curative resection.

December 24, 2007

VC program takes off in nonacademic setting

Radiologists in Belgium have built a popular virtual colonoscopy practice they credit with increasing awareness of colorectal cancer screening in their community and reducing unnecessary optical colonoscopies. The screening model offers a glimpse of what U.S.-based community screening practice might look like with a bit of reimbursement.

December 20, 2007

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Bill introduced to add VC to Medicare screening coverage

A bill introduced yesterday in the U.S. House of Representatives would add virtual colonoscopy (VC or CT colonography [CTC]) to the list of colorectal cancer screening alternatives covered by Medicare.

December 19, 2007

Multicenter trial supports CTPA versus V/Q for PE

A study in the December 19 Journal of the American Medical Association confirms that CT pulmonary angiography (CTPA) is a reliable alternative to ventilation-perfusion (V/Q) scans for ruling out pulmonary embolism (PE). CT doesn't miss clinically significant blood clots in the lungs, and can also help reveal other potential causes of the patients' symptoms, the authors report.

December 17, 2007

GFR no better than creatinine for predicting renal failure

Kidney specialists may insist on calculating estimated glomerular filtration rates (eGFR) rather than serum creatinine (S-Cr) levels for assessing patients at risk of contrast-induced nephropathy (CIN). But the results of a six-year study from Virginia say one test is no better than the other for predicting renal failure.

December 17, 2007

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AuntMinnie.com Virtual Colonoscopy Insider

December 16, 2007

Disparate VC results suggest 2D/3D debate isn't over

Two recent studies have given new life to an old rivalry: 2D versus 3D primary reading of virtual colonoscopy data. In the first, ACRIN 6664 researchers found no significant difference in sensitivity between the two reading methods. In the second study, however, researchers at the University of Wisconsin in Madison found that primary 3D reading on a single system produced substantially better outcomes compared to 2D reading.

December 10, 2007

Study tests low dose ranges for perfusion CT

Perfusion imaging allows CT -- still the primary imaging modality for detecting and staging cancer -- to depict vascular physiology as well as detailed patient anatomy. Perfusion has several drawbacks, though, including high radiation doses. However, lower doses serve to enhance the conspicuity of iodinated contrast, along with reducing patient risk, according to researchers from the Mayo Clinic in Rochester, MN. To lower the dose, they reduced the x-ray tube energy (kVp).

December 9, 2007

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New benchmark helps monitor cumulative CT radiation dose

The findings highlight the need for systematic dose tracking and rigorous justification of imaging.

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Study questions routine use of radiotherapy after bone surgery

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CEUS outshines color Doppler imaging for indeterminate kidney lesions

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Women's Imaging MinnieCast, Episode 2: Risk-based vs. annual mammography screening, part 1

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Chest x-rays reveal atherosclerosis in patients undergoing amputations

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

IMV: MR departments seek to leverage AI to improve workflow, productivity

By Davin Korstjens

In 2023, the top priorities for MR departments are to increase patient satisfaction and improve MRI department workflow and productivity.

December 27, 2023

Mri Machine Screens

Researchers invent elastic x-ray shield

A group in Japan has developed and tested an elastic x-ray shield made by embedding bismite particles in porous polyurethane.

December 27, 2023

Agamon Health manager talks missed follow-up exams with AuntMinnie.com

By Amerigo Allegretto

Steve Linowes from Agamon Health highlighted the challenge of missed follow-up imaging orders with AuntMinnie.com.

December 26, 2023

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Increase in CCTA exams expected to mirror TAVR growth trend

By Stephanie Hosbrook, Robert Falk, MD

A steady increase in the volume of coronary CT angiography (CCTA) exams is occurring, especially at mid- to high-level community hospitals across the country.

December 26, 2023

Graph Arrow Up 400

MRI reveals how football head injuries may lead to dementia

By Kate Madden Yee

Signs of injury to the brain's white matter called white matter hyperintensities may be strongly tied to markers of dementia in former football players.

December 22, 2023

Football Player Helmet

Radiology leadership changes to begin in the new year

2024 will see term beginnings for newly appointed radiology chairs.

December 22, 2023

Applause Honors Resized

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