Gastrointestinal Radiology: Page 96

Adding CAD to virtual colonoscopy saves lives and money

Adding computer-aided detection (CAD) increases the efficiency and cost-effectiveness of VC screening, according to a new model-based analysis. Most of the gains resulted from the use of CAD with inexperienced readers, but even with experienced readers VC cost-effectiveness improved substantially.

February 23, 2009

Computer pen bests mouse for 3D image segmentation

By Erik L. Ridley

A computer pen can outperform a conventional mouse for performing 3D image segmentation, according to research from Massachusetts General Hospital in Boston.

February 19, 2009

ACRIN study: Bigger images, slower pace improve VC sensitivity

The best virtual colonoscopy readers don't rush through their cases, and they don't try to squeeze more than one image on the monitor at a time. But sticking to their preferred reading method doesn't help them find more polyps, according to a new analysis of data from the National CT Colonography Trial (ACRIN 6664).

February 15, 2009

Medicsight parent gets NYSE listing notice

By AuntMinnie.com staff writers

The parent company of computer-aided detection software developer Medicsight reported that it has received a notice that it is out of compliance with listing rules for the New York Stock Exchange (NYSE) Alternext U.S. exchange.

February 12, 2009

CMS rejects case for virtual colonoscopy reimbursement

Proponents of virtual colonoscopy suffered a setback this week when the U.S. Centers for Medicare and Medicaid Services (CMS) issued a proposal rejecting federal reimbursement for VC screening for colorectal cancer.

February 11, 2009

ACRIN VC trial shows only small differences in bowel preps

There was no runaway winner among the three bowel preps used in the recently published National CT Colonography Trial (ACRIN 6664), but there were certainly differences in how they performed, according to a research team from Arizona.

February 8, 2009

Virtual colonoscopy beginners do better with 3D data

Novice virtual colonoscopy readers detect more polyps reading 3D endoluminal datasets of electronically cleansed data compared to 2D images. But experienced readers aren't daunted by either 2D datasets or fecal residues, turning in a similar performance regardless of the reading environment.

February 4, 2009

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Confocal microscopy could reduce polypectomies

Optical colonoscopy could become safer, and polypectomies fewer, with the advent of a supermagnifying endoscope that can distinguish between benign hyperplastic lesions and potentially dangerous adenomas without removing them from the patient.

January 29, 2009

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Need for VC colon screening trumps physician turf battles

SAN FRANCISCO - Virtual colonoscopy is safe and cost-effective and should be implemented for widespread colorectal cancer screening despite the inevitable turf struggles that arise between physician subspecialties, according to the radiologist who led the multicenter National CT Colonography Trial.

January 19, 2009

Ultrasound screens for pancreatic cancer in high-risk populations

SAN FRANCISCO - Ultrasound detected small pancreatic cancers even CT and MRI couldn't visualize in a novel Dutch screening program aimed at high-risk patients with a family history of the disease. The researchers hope to transform their pilot study into a multicenter trial aimed at finding pancreatic cancer in high-risk patients while it's still resectable.

January 18, 2009

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MR colonography separates benign from malignant colonic strictures

Dynamic contrast-enhanced MR colonography can readily distinguish benign from malignant strictures of the colon, according to Danish researchers. They said the technique could solve a diagnostic dilemma in patients with suspected colorectal cancer lesions that prevent them from undergoing conventional colonoscopy before surgery.

January 15, 2009

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Study warns VC could leave high-risk polyps unresected

Researchers who analyzed a large database of resected colon polyps concluded that the American College of Radiology's policy of ignoring diminutive polyps detected at virtual colonoscopy could lead to as many as 30% of patients with "high-risk findings" being read as normal on VC exams.

January 13, 2009

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