Diagnostic optimization of coronary CT angiography.

m c Combined evaluation of coronary anatomy and myocardial ischemia has become the holy grail of noninvasive diagnostic imaging. Several approaches, such as hybrid imaging combining coronary computed tomography angiography (CTA) for anatomy and stress-rest nuclear imaging for perfusion, are adding to the complexity, cost, and radiation burden of both techniques. In theory, a single imaging device that could provide both anatomic