Eric Barnes[email protected]CTAuntMinnie.com Virtual Colonoscopy InsiderApril 6, 2009CTAdding chest CT to VC not cost-effective, study findsAdding a chest CT scan to screening virtual colonoscopy isn't cost-effective in a cohort of average-risk patients, a new model-based analysis concluded. Although the additional anatomic coverage increased the clinical efficiency of CT-based screening, the combined test would not detect enough serious pathology to cover the costs of detection and follow-up of disease.April 6, 2009CTMDCT holds promise for advanced osteoporosis scanCT could become an important player in the emerging field of structural bone assessment, according to researchers from Berlin and San Francisco. They believe the modality is capable of evaluating trabecular structures from the extremities to the vertebrae, outperforming even high-resolution peripheral quantitative CT (HR-pQCT) in some conditions.April 5, 2009CTVirtual colonoscopy CAD finds most cancersA computer-aided detection (CAD) algorithm designed to find polypoid lesions of the colon also does fairly well at finding frank cancers, researchers from the U.K. concluded. But sensitivity varies depending on the system settings and the quality of the prep.April 2, 2009CTAuntMinnie.com CT InsiderApril 1, 2009Nuclear MedicineCT for brain metastasis unnecessary after PET/CTA CT scan is often ordered to find brain metastases in lung cancer patients. But if a whole-body PET/CT scan is already available from the original workup, there's no need for a dedicated CT scan, according to researchers from Belgium, who found that the CT portion of the PET/CT scan is enough for the initial diagnosis.April 1, 2009Image ProcessingAutomated CT volumetry of lymph nodes gauges treatment responseCancer patients who respond to neoadjuvant therapy have a better prognosis than nonresponders, of course, but with the exception of FDG-PET, reductions in the size of tumors treated with chemotherapy or radiation have been difficult to gauge using imaging modalities that are capable of delineating the anatomy.March 26, 2009CTVC/AAA screening combo cost-effective in older adultsA new analytic model has found that virtual colonoscopy is a highly cost-effective colon cancer screening method for older adults in the Medicare population, especially when combined with screening for abdominal aortic aneurysm (AAA), a test performed using the same CT dataset at little additional cost.March 25, 2009CTCT dose reductions don't impede detection of large renal calculiFor detecting renal calculi with CT, even dose reductions as high as 75% didn't reduce sensitivity for stones 3 mm and larger, according to a new study from Ohio's Cleveland Clinic. And because smaller stones are more likely to pass, significant dose reductions may be possible without missing the larger and more problematic calculi.March 17, 2009CTHyperplastic polyps flatten out with VC insufflationWhen patients are scanned prone and supine for virtual colonoscopy, adenomatous polyps don't change much in size or shape. But a new study found that hyperplastic polyps tend to flatten out in VC compared to optical colonoscopy, to the point where they're harder to detect.March 10, 2009Previous PagePage 148 of 258Next PageTop StoriesDigital X-RayChest x-rays reveal atherosclerosis in patients undergoing amputationsLower limb amputation is an increasingly common major complication of advanced peripheral arterial disease and diabetes mellitus.MRI3D MRI technique helps plan treatment for pediatric heart conditionsWomens ImagingCould AI scoring help with managing DCIS?CTClinicians, beware: CT diagnostic accuracy varies by adnexal lesion typePractice ManagementRadiology coding update for 2026
