Dual-source CT cardiac imaging: initial experience.

摘要: The relation of heart rate and image quality in the depiction coronary arteries, valves myocardium was assessed on a dual-source computed tomography system (DSCT). Coronary CT angiography performed DSCT (Somatom Definition, Siemens) with high concentration contrast media (Iopromide, Ultravist 370, Schering) 24 patients rates between 44 92 beats per minute. Images were reconstructed over whole cardiac cycle 10% steps. Two readers independently regard to diagnostic evaluation right left artery, ventricular for assessment vessel wall changes, stenoses, valve morphology function three point grading scale. ratings at optimal reconstruction interval 1.24±0.42 1.09±0.27 artery. A systolic diastolic images is possible wide range rates, allowing also functional myocardium. Dual-source offers very robust rates. temporal resolution now makes possible.