Abdominal Imaging: Page 55

Virtual colonoscopy CAD finds most cancers
By Eric Barnes
A computer-aided detection (CAD) algorithm designed to find polypoid lesions of the colon also does fairly well at finding frank cancers, researchers from the U.K. concluded. But sensitivity varies depending on the system settings and the quality of the prep.
April 2, 2009
Digital tomo works well for some kidney, ureteral stones
By Brian Casey
A new study by Belgian researchers indicates that digital tomosynthesis could be useful for assessing ureteral and kidney stones, particularly for screening patients prior to CT. But the digital radiography technique has different levels of accuracy depending on the location and size of stones.
April 1, 2009
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Automated CT volumetry of lymph nodes gauges treatment response
By Eric Barnes
Cancer patients who respond to neoadjuvant therapy have a better prognosis than nonresponders, of course, but with the exception of FDG-PET, reductions in the size of tumors treated with chemotherapy or radiation have been difficult to gauge using imaging modalities that are capable of delineating the anatomy.
March 26, 2009
CT dose reductions don't impede detection of large renal calculi
By Eric Barnes
For detecting renal calculi with CT, even dose reductions as high as 75% didn't reduce sensitivity for stones 3 mm and larger, according to a new study from Ohio's Cleveland Clinic. And because smaller stones are more likely to pass, significant dose reductions may be possible without missing the larger and more problematic calculi.
March 17, 2009
Stereotactic radiotherapy for pancreatic cancer remains controversial
By Cynthia E. Keen
No curative treatments exist for pancreatic cancer patients with locally advanced or unresectable disease. Various chemotherapy and chemoradiation treatments are used to enhance survival and improve the quality of a patient's remaining life. Should stereotactic body radiotherapy (SBRT) be one of these treatment options? That's open to debate.
March 15, 2009
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Study: Endovascular repair can come first for AAA
By AuntMinnie.com staff writers
Researchers of a new U.K. study recommend endovascular or endograft repair as a first-line treatment for abdominal aortic aneurysm (AAA), given that the low reintervention rates are comparable to those reported for open surgical repair.
March 11, 2009
MDS Nordion upgrades TheraSphere system
By AuntMinnie.com staff writers
MDS Nordion has upgraded its yttrium-90 microsphere administration system for TheraSphere, a targeted internal radiation therapy for patients with inoperable, primary liver cancer.
March 8, 2009
Hitachi offers Echelon upgrades
By AuntMinnie.com staff writers
Hitachi Medical Systems America is offering upgrades to its Rapid 3D and Radar capabilities, along with the Origin 2.0 software upgrade, at no charge to Echelon 1.5T MRI users.
March 8, 2009
Medicsight unveils new ColonCAD version at ECR
By AuntMinnie.com staff writers
Computer-aided detection software developer Medicsight has launched a new version of its ColonCAD software at this year's European Congress of Radiology (ECR) in Vienna.
March 5, 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
Need for VC colon screening trumps physician turf battles
By Eric Barnes
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
By Eric Barnes
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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