Eric Barnes[email protected]CTCT doesn't hurt when evaluating emergency chest painCan CT pinpoint the cause of acute chest pain in the emergency room? Researchers from the University of Maryland School of Medicine in Baltimore sought to answer the question by scanning patients who presented to their emergency department with acute chest pain.August 14, 2005CTEven in pregnancy, CT rules for ruling out PEThere's no cause for misgivings when CT pulmonary angiography is needed to rule out pulmonary embolism in a pregnant woman. CTPA not only provides the most definitive diagnosis available in such patients, it does so with less radiation than scintigraphy.August 7, 2005CTColon CAD: VC's extra eyes face new challengesPrototype colon CAD systems are proliferating, and thanks to years of painstaking development work they're doing a pretty good job, outperforming all but the best radiologists in the detection of colonic lesions. VC CAD expert Dr. Hiro Yoshida from Harvard Medical School in Boston discusses the major innovations that have produced today's complex CAD systems, and the moving target CAD developers face in keeping up with new performance standards.August 4, 2005CTAuntMinnie.com Virtual Colonoscopy Radiology InsiderJuly 31, 2005CTVC shows extracolonic findings in most patientsMost people -- even those at average risk for colorectal cancer -- have extracolonic findings at virtual colonoscopy, including significant numbers with clinically important conditions, according to a new study from the Veterans Affairs Medical Center in San Francisco.July 27, 2005CTVC earns high marks in symptomatic kidsIn what may be the first peer-reviewed study of virtual colonoscopy in children, researchers from Diagnóstico Maipu in Buenos Aires have produced high sensitivity and specificity with a low-dose VC protocol, compared to optical colonoscopy.July 26, 2005CTPart II: Free scans, general practitioners key to CTA successIn the second and final installment of our series on CT angiography practice-building, radiologist Dr. David Dowe of Atlantic Medical Imaging in New Jersey discusses the nuts and bolts of performing CT angiography (CTA) in the community setting.July 25, 2005Image-Guided SurgeryModel saves time, radiation by simulating anatomic changes during radiotherapyOrgans and tumors can twist, turn, and deform substantially during radiotherapy, creating a moving target for treatment planners seeking to avoid irradiating normal tissue. One solution, a full CT scan before each treatment, is both time- and radiation-intensive. But what if doctors could simply "update" the pretreatment scan with a few newly acquired planar projection images? Researchers from Virginia built and tested a model to do just that.July 24, 2005CTVC holds up against back-to-back colonoscopiesVirtual colonoscopy's accuracy is hard to verify because it is usually compared against the imperfect gold standard of optical colonoscopy. But in a new study, researchers in Italy compared the results of VC to those of back-to-back colonoscopies and may have achieved the best reference standard so far for VC.July 18, 2005CTReduced prep, low-residue diet, and mild tagging suffice for accurate VCHigh barium doses aren't necessary for reduced-prep virtual colonoscopy when a low-residue diet is part of the protocol. In the American Journal of Roentgenology, researchers from Belgium reported high sensitivity and specificity for colorectal polyps using such a protocol.July 12, 2005Previous PagePage 205 of 258Next PageTop StoriesMolecular ImagingPET predicts faster cognitive decline in women than menWomen initially outperformed men at low brain tau levels, but the advantage diminished as tau levels increased over time.MRIUnclear explanations of contrast MRI exams heighten patient anxietyWomens ImagingMammography screening improves survival for late-stage cancersUltrasoundUltrasound MinnieCast, Episode 2: Body imaging with RUS-PATSponsor ContentHow Agentic AI Is Transforming Radiology Ops
