Subspecialties: Page 1162

Polyp ranking scheme boosts CAD efficiency
By Eric Barnes
When virtual colonoscopy computer-aided detection (CAD) software is set to achieve maximum sensitivity for polyp detection, it also tends to output large numbers of false positives. But when sensitivity is set too low, true positives are missed. A new method aims to speed up CAD processing by determining from the start which polyps are likely to be deemed false positives, then eliminating them from further analysis.
September 30, 2007
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ACRIN trial shows VC ready for widespread use
By Eric Barnes
ARLINGTON, VA - Trial results unveiled today marked the apparent end of a long road to validation for virtual colonoscopy, a radiology-based colon screening exam whose advocates have toiled for more than a decade to show equivalent detection sensitivity in a large screening trial compared to more invasive optical colonoscopy.
September 27, 2007
Elekta receives Austrian contract
By AuntMinnie.com staff writers
Vöcklabruck Hospital in Austria has signed a 10-year agreement with Elekta of Stockholm, Sweden, to supply intensity-modulated radiation therapy (IMRT) and image-guided radiation therapy (IGRT) treatment systems.
September 27, 2007
CardioDynamics nets OK for BioZ Dx features
By AuntMinnie.com staff writers
Impedance cardiography (ICG) developer CardioDynamics of San Diego has received U.S. Food and Drug Administration (FDA) 510(k) marketing clearance for ICG clinical parameters and the electronic medical record (EMR) interface capability for its BioZ Dx system.
September 27, 2007
ACR to oppose future CHAMP-like cuts
By AuntMinnie.com staff writers
Radiology has dodged a bullet with the passage of a the latest version of the Children's Health and Medicare Protection (CHAMP) Act of 2007 that had provisions affecting medical imaging stripped out. But Congress could reprise the cuts in other legislation, an eventuality the American College of Radiology (ACR) of Reston, VA, said it would work to prevent.
September 25, 2007
Rcadia nets FDA nod
By AuntMinnie.com staff writers
Israeli computer-aided detection (CAD) developer Rcadia Medical Imaging has received a second U.S. Food and Drug Administration (FDA) clearance for its COR Analyzer family of products.
September 25, 2007
Left atrial size adds prognostic value in stress echo exams
By Erik L. Ridley
Left atrial (LA) size provides independent and incremental value over standard risk factors such as left ventricular systolic dysfunction and ischemia in patients referred for stress echocardiography exams, according to a new study in the Journal of the American College of Cardiology.
September 25, 2007
InSightec proceeds with phase I trial
By AuntMinnie.com staff writers
Focused-ultrasound developer InSightec has begun the second stage of a phase I clinical trial for noninvasive treatment of brain tumors using MR-guided focused ultrasound (MRgFUS) surgery on the Haifa, Israel-based company's ExAblate system.
September 25, 2007
Coronary artery disease linked to colon cancer
By Eric Barnes
Patients who learn they have coronary artery disease (CAD) might be wise to get more screening. New research links the presence of coronary artery disease at angiography to a high likelihood of colorectal polyps and cancer at colonoscopy. The study in the Journal of the American Medical Association revealed more new information about individual risk factors than about the general association between heart and colon disease.
September 24, 2007
Elekta receives Italian orders
By AuntMinnie.com staff writers
Two Italian hospitals will open new radiation therapy clinics with technology from Elekta of Stockholm, Sweden.
September 24, 2007
CAD may improve sensitivity of MDCT screening exams
By Erik L. Ridley
Computer-aided detection (CAD) technology can improve radiologists' sensitivity for detecting solid lung nodules 4 mm or larger during multidetector CT chest screening studies, according to research published in the October issue of the American Journal of Roentgenology.
September 20, 2007
Combining T2-weighted MRI and DWI improves prostate cancer detection
By Radiology Review
(Radiology Review) Combined T2-weighted MRI and diffusion-weighted imaging (DWI) is significantly better than T2-weighted imaging alone for detecting peripheral zone prostate cancer, according to a report in the August issue of American Journal of Roentgenology.
September 20, 2007
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