Gastrointestinal Radiology: Page 103

Whole milk effective contrast agent, AJR study finds
By AuntMinnie.com staff writers
A study published in the May issue of the American Journal of Roentgenology found that whole milk is just as effective, costs less, and is easier on patients than a diluted barium suspension for CT images of the gastrointestinal tract.
May 28, 2008
Oral contrast agents show potential for GI applications
By Erik L. Ridley
ATLANTIC CITY, NJ - Oral ultrasound contrast agents can overcome interference from bowel gas and make it possible to image normal and abnormal structures in the gastrointestinal tract, according to a presentation at this week's Leading Edge in Diagnostic Ultrasound conference.
May 22, 2008
Automated polyp measurement cuts variability
By Eric Barnes
A new study from the Netherlands found that manual polyp measurements in virtual colonoscopy were a bit more accurate than an automated process based on polyp protrusion measurements. The automated scheme still came out ahead, however, because it eliminated interobserver variability.
May 20, 2008
2008 05 20 16 51 45 706
CMS launches comment period for VC coverage
By Eric Barnes
Just weeks after the American Cancer Society recommended virtual colonoscopy for colon screening, Medicare is taking up the task by launching an analysis of the technology that could eventually lead to U.S. reimbursement for nationwide screening.
May 19, 2008
Barco, NeuIsys form alliance
By AuntMinnie.com staff writers
Image display and advanced visualization firm Barco and NeuIsys Imaging Systems Solutions of Greensboro, NC, have formed a partnership to address the gastrointestinal market for virtual colonoscopy, Barco said.
May 14, 2008
Low-energy, high-current CT nabs tiny liver lesions
By Eric Barnes
LAS VEGAS - Dual-energy CT using different tube energy (kVp) settings can be used to distinguish imaging targets with similar densities but different attenuation properties, thereby increasing the conspicuity of contrast-enhanced lesions.
May 14, 2008
2008 05 14 19 55 53 706
VC CAD finds polyps in prepped or unprepped patients
By Eric Barnes
The emergence of preparation-independent computer-aided detection (CAD) for virtual colonoscopy is a sure sign of the growing sophistication of the software. Researchers from Boston recently reported on an investigational CAD scheme that successfully analyzed both cleansed and uncleansed patients, tagged and untagged cases, to detect colorectal polyps and distinguish them from fecal material.
May 5, 2008
2008 05 06 08 31 38 706
Given, Olympus settle litigation
By AuntMinnie.com staff writers
Video-capsule endoscopy developer Given Imaging has inked a deal with Olympus to settle patent litigation between the two firms.
April 22, 2008
CT shows gallbladder rupture in acute cholecystitis
By Eric Barnes
The accurate diagnosis of gallbladder rupture with acute cholecystitis is key to arranging timely surgery and preventing serious outcomes. But the condition often goes undiagnosed until it's too late. CT can help save lives by reliably detecting ruptures presurgically if clinicians look for the signs, according to researchers from Taiwan.
April 22, 2008
2008 04 22 16 44 00 706
False-positive CAD marks don't hinder VC readers' accuracy
By Eric Barnes
Technology may get top billing in developing computer-aided detection (CAD) schemes, but psychology also plays a leading role. In a new study, U.K. researchers assessed the effects of false-positive CAD detections on virtual colonoscopy reader specificity and reporting times in a patient population with a low prevalence of cancer.
April 20, 2008
2008 04 15 11 19 56 706
Minimal-prep VC may miss more flat lesions
By Eric Barnes
Virtual colonoscopy achieved high overall sensitivity in a three-part study that examined patients with minimal-prep VC, then standard-prep VC and conventional colonoscopy. But the tagged, minimal-prep protocol tended to miss more flat lesions, according to the researchers.
April 16, 2008
2008 04 16 14 44 30 706
Tagging trials: Balancing image quality with patient acceptance in VC
By Rob Skelding
Virtual colonoscopy is generally accepted as an effective and reliable screening tool for polyps and cancer. But laxative-based bowel-cleansing methods can be uncomfortable and inconvenient for patients. To improve the patient experience, recent studies have sought to eliminate cathartic cleansing and rely instead on fecal tagging using iodinated oral contrast agents.
April 15, 2008
2008 04 15 15 23 28 706
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