Chest Radiology: Page 174

NEJM issues correction on Henschke lung cancer study
By AuntMinnie.com staff writers
The New England Journal of Medicine published a correction on Wednesday to a 2006 study by Dr. Claudia Henschke and colleagues on the efficacy of CT screening for lung cancer. The correction acknowledges that the study received part of its funding from a foundation linked to the tobacco industry.
April 2, 2008
Canadian CT lung screening tracks asbestos workers
By Eric Barnes
As the debate swirls in the U.S. over CT lung screening of smokers, Canadian researchers are developing a unique CT screening program designed to focus on patients who have been exposed to asbestos as a tool for early detection of malignant mesothelioma. The investigators aim to help patients while advancing the understanding of mesothelioma, especially early-stage disease, which is poorly understood.
April 2, 2008
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Criteria determine CAD mark sensitivity
By Cynthia E. Keen
The sensitivity of computer-aided detection (CAD) algorithms will change depending upon the criteria used to evaluate the precise location of a mark on a suspicious finding. Thus, marking criteria should be specifically defined, both by CAD product vendors and authors reporting study results, according to researchers from the University of Chicago.
March 19, 2008
Median nets Spanish contract
By AuntMinnie.com staff writers
Median Technologies of Biot, France, has signed an agreement with CETIR Grup Mèdic of Barcelona, Spain, to install its LMS-Lung and LMS-Liver computer-aided detection (CAD) software.
March 17, 2008
Siemens adds Definition applications
By AuntMinnie.com staff writers
Siemens Medical Solutions has received U.S. Food and Drug Administration 510(k) clearance for four applications on its Somatom Definition dual-source CT scanner.
March 10, 2008
CAD provides mixed benefits for DR lung exams
By Brian Casey
VIENNA - A pair of presentations on Saturday at the 2008 European Congress of Radiology on computer-aided detection (CAD) for digital radiography (DR) reported mixed benefits for the software in detecting lung nodules in thoracic exams. The presenters discussed their experiences with a commercially available CAD product and its impact on radiologist performance in analyzing DR lung studies.
March 7, 2008
CAD vendors hope FDA hearings will clear approval bottleneck
By Cynthia E. Keen
The U.S. Food and Drug Administration (FDA) today began a two-day set of hearings that could result in major changes to the way the agency regulates computer-aided detection (CAD) technology. Industry experts are hoping the hearings will clear up a logjam of delayed regulatory applications for CAD software that has been building since last year.
March 3, 2008
Lung nodule segmentation method shows potential
By Erik L. Ridley
A new method for segmenting lung nodules in 3D CT images shows promise for improving the quantification, detection, and diagnosis of nodules, according to researchers from the University of Chicago in Illinois. They sought to develop a reliable method of segmenting lung nodules in 3D images using a "spiral scanning" technique.
February 27, 2008
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CAD shines in detecting large nonsolid pulmonary nodules
By Cynthia E. Keen
Computer-aided detection (CAD) software can outperform both a senior thoracic radiologist and a resident trained in chest imaging for detecting nonsolid pulmonary nodules larger than 3 mm, according to a study from France. The results support the use of a CAD system as a second observer for both nonsolid and solid nodules detected on CT studies, the researchers said.
February 26, 2008
Pediatric CT dose drops with breast shields plus tube modulation
By Eric Barnes
Considering the heightened sensitivity of young patients to radiation's ill effects, and the approximately 7 million CT scans of U.S. children annually, radiologists are working overtime to minimize the dose for these patients. Researchers from Duke University Medical Center in Durham, NC, have recently found that the radiation dose of pediatric thoracic CT scans can be cut by more than half using breast shields with dose modulation software.
February 25, 2008
3mensio wins FDA clearance for vascular imaging package
By AuntMinnie.com staff writers
Advanced visualization developer 3mensio Medical Imaging of Bilthoven, Netherlands, has received clearance from the U.S. Food and Drug Administration (FDA) for its 3surgery Vascular Imaging software, the company reported.
February 24, 2008
Study reinforces V/Q, PIOPED II guidelines for PE during pregnancy
By Cynthia E. Keen
The results of an analysis of ventilation/perfusion (V/Q) scans performed over a seven-year period reinforce the recommendations of the Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED) II trial. The V/Q scan remains an excellent study to make or rule out the diagnosis of pulmonary embolism in pregnant women, according to researchers from Rhode Island.
February 14, 2008
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