Gastrointestinal Radiology: Page 112

MR shows broad spectrum of findings in pregnant women with suspected appendicitis
By Shalmali Pal
Although acute appendicitis is not terribly common in pregnant women, it does pose a diagnostic challenge because of anatomic and histologic changes that occur in these patients. CT carries a radiation risk while ultrasound, which is the established modality in this population, doesn't always deliver the whole story. Instead, Boston-based imagers have found success with MRI for evaluating the appendix, and more, in the gravid patient.
July 2, 2007
2007 07 02 14 26 46 706
Hessian matrix-based CAD looks promising for VC
By Eric Barnes
BERLIN - Virtual colonoscopy computer-aided detection (CAD) schemes based on the Hessian matrix method are gaining currency among researchers. At the 2007 Computer Assisted Radiology and Surgery (CARS) conference, researchers from Japan presented a CAD method that uses filters based on Hessian matrix eigenvalues to eliminate false-positive polyp candidates.
July 1, 2007
2007 06 29 16 24 07 706
Fully automated VC CAD system solves tagging problems
By Eric Barnes
Researchers from Massachusetts General Hospital in Boston have built a computer-aided detection (CAD) scheme that can find polyps in tagged virtual colonoscopy images, without getting bogged down by the oral contrast.
June 24, 2007
2007 06 19 16 21 54 706
Patient survey suggests preference for minimal-prep VC
By Eric Barnes
While colorectal cancer is the second leading cause of death in the U.S., less than half of screening age individuals over 50 are examined for the disease. A new survey suggests that eliminating the cathartic bowel preparation might improve compliance screening rates. But the answers may not predict patients' real interest in screening, and the minimal-prep approach is not without complications, cautioned a radiologist experienced in virtual colonoscopy screening.
June 19, 2007
FAST proves useful as triage tool in wartime
By Erik L. Ridley
Focused abdominal sonography for trauma (FAST) exams can serve as a valuable triage tool in multiple casualty incidents (MCIs), according to researchers from Rambam Medical Center in Haifa, Israel. The group retrospectively reviewed the records of 849 patients arriving at the level I trauma center during a one-month period during the Second Lebanon War.
June 19, 2007
Median gets 510(k) for lung and liver apps
By AuntMinnie.com staff writers
French computer-aided detection (CAD) developer Median Technologies has received 510(k) clearance from the U.S. Food and Drug Administration for its LMS-Lung/Track and LMS-Liver applications.
June 17, 2007
Noncathartic bowel prep facilitates, complicates virtual colonoscopy
By Eric Barnes
SAN FRANCISCO - Studies suggest that virtual colonoscopy without cathartic bowel preparation is feasible and sufficiently accurate. More patients might be willing to get screened. But if prepless VC makes patients' lives easier, it complicates matters for radiologists. Dr. Michael Zalis from Massachusetts General Hospital in Boston discussed several issues that impact the emergence of a kinder, gentler screening exam at the International Symposium on Multidetector-Row CT.
June 14, 2007
Viatronix, Medicsight net CE Mark
By AuntMinnie.com staff writers
Advanced visualization firm Viatronix and computer-aided detection (CAD) partner Medicsight of London have jointly released their integrated virtual colonoscopy CAD offering in Europe.
June 12, 2007
MRI features of larger lesions predict malignancy in cirrhotic liver
By Radiology Review
(Radiology Review) MRI T1-weighted hypointense lesions on unenhanced in-phase images and T2-weighted hyperintensity or arterial hypervascularity are highly suggestive of malignancy in patients with liver cirrhosis, according to a study published in the American Journal of Roentgenology.
June 12, 2007
Virtual colonoscopy finds cancers outside the colon
By Brian Casey
June 11, 2007
Significant extracolonic cancer found in VC screening patients
By Eric Barnes
Unsuspected extracolonic cancers are found in about one in 300 asymptomatic virtual colonoscopy (VC) screening subjects, according to a new study of more than 5,000 individuals who underwent colon cancer screening. The results add weight to the argument that following up the most serious extracolonic findings can potentially benefit outcomes.
June 11, 2007
2007 06 11 14 12 30 706
Barco gets 510(k) for advanced visualization suite, launches new PACS display
By AuntMinnie.com staff writers
Image display and advanced visualization software developer Barco said it has received U.S. Food and Drug Administration (FDA) approval for the latest version of its Voxar 3D advanced visualization software suite. The Kortrijk, Belgium-based firm also launched a new PACS color display system.
June 6, 2007
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