VC not cost-effective in FOBT-positive screening population May 8, 2009 -- Patients with positive screening results on fecal occult blood tests (FOBTs) should probably head straight to optical colonoscopy for their next exam, according to a new study from the Netherlands. Virtual colonoscopy may not be cost-effective in this population because so many FOBT-positive patients would need referral for polypectomy anyway, the researchers said.
FFDM equals analog mammography in hard-copy reading May 7, 2009 -- A new study from the U.K. confirms previous research regarding the equivalency of full-field digital mammography (FFDM) with analog film-screen mammography. The two techniques had roughly equal detection rates when images were printed and read in a hard-copy environment.
Biological dose measures promise new view of cardiac imaging risk May 1, 2009 -- The development of biological radiation dose measurement portends a future of far greater accuracy in gauging the damage wrought by ionizing radiation in imaging exams. Two studies, focused on cardiac CT and conventional angiography exams, respectively, offer the potential of maximizing image quality while minimizing the potential radiation risk to the patient.
US replaces x-ray for diagnosing childhood constipation April 27, 2009 -- British pediatricians at a London children's hospital are using ultrasound to assess the severity of constipation in children. They have found that ultrasound is a good substitute for abdominal x-ray, with its radiation exposure, or a digital rectal examination, a procedure that children find unpleasant and disturbing.
New technology spurs investment in brachytherapy April 23, 2009 -- The U.S. market for brachytherapy products should exceed $1 billion in the next five years, driven by the introduction of new products that allow accelerated treatment for cancer patients after surgery. The worldwide market could grow even more rapidly, according to this analysis from market research firm Bio-Tech Systems.
VC CAD plus 3D improves sensitivity for novice readers April 21, 2009 -- Computer-aided detection (CAD) with 3D viewing improves sensitivity for polyp detection among less experienced readers, and may also speed up reading times and reduce false-positive detections. On the other hand, the performance of experienced readers did not improve significantly with CAD use, researchers from the University of Rome concluded.
IHE's XDS-I profile may help with CD import dilemma April 14, 2009 -- Institutions that struggle with managing patient CDs from outside locations should consider taking advantage of the Integrating the Healthcare Enterprise (IHE) Cross-enterprise Document Sharing for Imaging (XDS-I) integration profile, according to a presentation at the 2009 European Congress of Radiology.
Gated SPECT best indicator for cardiac events April 13, 2009 -- Myocardial perfusion abnormalities obtained after stress, as well as the extent of scar tissue detected by gated SPECT, are the best predictors of cardiac events in patients with suspected or known ischemic heart disease, according to a new Italian study.