Journal of cardiovascular computed tomography
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J Cardiovasc Comput Tomogr · Mar 2008
Comparative StudyPrognosis by coronary computed tomographic angiography: matched comparison with myocardial perfusion single-photon emission computed tomography.
The diagnostic accuracy of coronary computed tomographic angiography (CTA) is high with few reports noting its ability to stratify risk. The quantity and quality of prognostic evidence with myocardial perfusion single-photon emission computed tomography (SPECT) (MPS) is diverse, with little comparative evidence between methods. The aim of this report was to compare all-cause death rates for 7 CTA subsets, using the Duke prognostic index, compared with percentage of ischemic myocardium by MPS. ⋯ A directly proportional relation was observed between the extent and severity of MPS ischemia and angiographic CAD. High-risk ischemia is more often associated with extensive CAD and high mortality risk. The results from this matched, observational study require additional validation for longer-term predictive models that include major adverse cardiovascular events and diverse patient subsets.