Adding CAD to virtual colonoscopy saves lives and money February 24, 2009 -- Adding computer-aided detection (CAD) increases the efficiency and cost-effectiveness of VC screening, according to a new model-based analysis. Most of the gains resulted from the use of CAD with inexperienced readers, but even with experienced readers VC cost-effectiveness improved substantially.
Finnish study finds unnecessary pediatric CT exams February 20, 2009 -- Nearly one-third of a sample of pediatric CT scans from a hospital in Finland were found to be clinically unjustifiable, according to research published online in the journal European Radiology.
MRI, MDCT err in estimating cardiac functional parameters February 20, 2009 -- MRI and MDCT assessments of left ventricular functional parameters were inaccurate when evaluated on a moving heart phantom with known parameters, according to a study in European Radiology. CT, particularly dual-source CT, did outperform MRI, however.
Italian study backs tomosynthesis over DR for lung pathology February 18, 2009 -- A study by Italian researchers has added to the growing body of evidence indicating that digital radiography (DR) with a tomosynthesis capability is superior to conventional DR in detecting pulmonary alterations that could be signs of lung pathology. But tomosynthesis wasn't totally without drawbacks.
MRI detects bleeding in the heart after a heart attack February 13, 2009 -- British researchers are using MRI to image hemorrhaging inside the heart to determine how much damage has been caused by a heart attack. Results of the study from the Medical Research Council Clinical Sciences Centre were published online in the journal Radiology.
Radiosurgery advised for postpneumonectomy recurrent lung cancer February 13, 2009 -- A large study of patients who developed contralateral lung cancer after having a pneumonectomy suggests that stereotactic radiation therapy is a curative option with minimal toxicity, even for high-risk patients with chronic obstructive pulmonary disease.
320-detector-row CT cuts dose in triple rule-out exams February 12, 2009 -- Image quality is high and radiation dose is low when the so-called triple rule-out protocol is used with 320-detector-row CT to scan patients with chest pain, according to researchers from Berlin.
Virtual colonoscopy beginners do better with 3D data February 5, 2009 -- Novice virtual colonoscopy readers detect more polyps reading 3D endoluminal datasets of electronically cleansed data compared to 2D images. But experienced readers aren't daunted by either 2D datasets or fecal residues, turning in a similar performance regardless of the reading environment.
JAMA study finds wide variation in cardiac CTA dose February 3, 2009 -- Coronary CT angiography (CTA) providers are failing to protect their patients from high radiation dose -- with dose levels varying widely between facilities, according to a new multinational study in the Journal of the American Medical Association.
CAD can boost double-reading detection rate January 22, 2009 -- Computer-aided detection (CAD) technology may yield breast cancer detection improvements in an independent double-reading mammography screening practice, according to a research team led by Dr. Per Skaane, Ph.D., of Ullevål University Hospital in Oslo, Norway.