http://www.appliedradiology.com RSS Feed on Applied Radiologyhttp://www.appliedradiology.com//Issues/2004/07/Supplements/CT-angiography-establishes-leading-role-in-pulmonary-imaging.aspxPulmonary CT angiography (CTA), with its ability to visualize disease in the smallest pulmonary vessels, is poised to become the gold standard for imaging the pulmonary circulation. This article will review both the technical details and clinical indications for pulmonary CTA. Included in the technical discussion will be: information on scanner settings for thin-slice imaging; the selection of contrast media and contrast injection protocols; the optimal display of data for various applications of pulmonary CTA; and several ongoing challenges, including motion artifact, patient radiation exposure, and the management of data from the hundreds of individual axial sections acquired with each multidetector-row CT scan. This article will also review specific indications for CTA and CT venography (CTV), including neoplastic and congenital disease, pulmonary hypertension, and acute pulmonary embolism, as well as future indications, such as measurement of right heart strain.Thursday, 29 Jul 2004 11:09:24 GMT