NCI consortium proposes standardized lung interpretation for CAD "truth" assessment
November 28th 2007A major issue facing researchers who develop computer-aided diagnosis systems for early detection of lung cancer is deciding what in a CT image truly represents a lung nodule. An effort sponsored by the National Cancer Institute could be the key to getting around this problem.
Radiologists gripe more freely on web-based quality control system
November 28th 2007When faced with the tall task of interpreting a set of poor-quality images, radiologists may grumble in their dark rooms or lambaste their techs in person. Imagers may feel their complaints disappear into a black hole and that it isn’t worthwhile to file a formal quality control complaint.
Study lends weight to 3D as primary CTC reading strategy
November 28th 2007A new study suggests that in CT colonography scanning, 3D interpretation with 2D confirmation is better at finding cancerous polyps in an asymptomatic population than other approaches. The study also validated earlier large and widely publicized CT colonography studies that relied on 2D interpretations and produced less than stellar results.
Potential turf battle looms with medical examiners over virtual autopsy scans
November 28th 2007Multislice CT is a promising tool for autopsy, and it’s likely that scanners will eventually be installed in many of the major medical examiner’s offices around the country. Who will read these cases remains to be seen, however, according to researchers from the University of Maryland Medical Center.
Radiological exams on pregnant women increase by 81% over 10-year period
November 28th 2007Utilization rates of radiological examinations in pregnant women rose dramatically over the last decade, driven largely by CT studies of the head and CT pulmonary angiography (CTPA). In one of the first studies to evaluate rates of radiological examinations that expose pregnant women to ionizing radiation, the number of exams per patient population was found to have risen by 81% over the period, according to research presented at the RSNA meeting by Dr. Elizabeth Lazarus of Brown University.
Image Vault offers self-contained PACS
November 28th 2007American Medical Sales is showcasing at RSNA 2007 an all-in-one PACS product that combines display, processing, and storage. Listed at $8000, the new Image Vault hardware/software combo is designed for small imaging operations. It features a simplified user interface built into a touchscreen, fingerprint security key, and automated logoff.
Fractures and liver/kidney lesions top list of residents’ ER misses
November 28th 2007A research team from Iowa has found that bone fractures, hypo- or hyperdense lesions in the liver and kidney, pulmonary nodules, and gastrointestinal wall thickening or fat stranding are among the most common misses by on-call residents in the emergency room.
Emageon show PACS upgrade, RadSuite
November 28th 2007New capabilities debuting at the RSNA in the Emageon booth include productivity enhancements in and beyond radiology. Product enhancements extend the company’s Enterprise platform offerings for multisite PACS to teleradiology, while expanding its mainstream PACS into mammography.
CT, MR-guided injections promise pain relief for sacroiliac joint lesions
November 28th 2007Injections of corticosteroids and anesthetics guided by CT or MR imaging offer a reliable therapeutic option for the treatment of chronic lower back pain from sacroiliac joint lesions, according to researchers from Germany and the U.S.
Performance data help justify breast MRI’s whopping price tag for high-risk screening
November 28th 2007MRI has outrun other modalities in a screening trial involving high-risk women. Such research helps justify an estimated $1.4 billion a year in direct costs for the U.S. if new American Cancer Society guidelines are followed.
Smaller FOV cuts dose but maintains sensitivity for detecting pulmonary emboli
November 28th 2007An abbreviated field-of-view can lead to a 48% cut in radiation dose for CT pulmonary embolism exams and 96% dose reduction compared to full-view 64-slice CT triple rule-out without affecting the diagnostic sensitivity of either procedure.
Siemens robot revolutionizes interventional imaging
November 28th 2007Siemens Medical Solutions demonstrated on the RSNA exhibit floor a novel marriage between industrial robotics and advanced C-arm technology. Its new work-in-progress, Artis zeego, is based on technology developed for heavy equipment manufacture.