High-pitch dual-source aortoiliac CTA: systolic data acquisition for measuring Aortic Annulus Dimensions before TAVR; comparison with multiphasic retrospectively ECG-triggered car…

Zielsetzung: To evaluate feasibility of a systolic high-pitch aortoiliac Dual-Source CTA (DSCTA) examination for measuring Aortic Annulus Dimensions before transcatheter aortic valve replacement (TAVR) as compared with multiphasic retrospectively ECG-triggered cardiac CTA. Material und Methodik: Twenty-one consecutive patients with severe aortic stenosis (9 women, mean age 83 ± 6 years) underwent pre-TAVR combined single dose contrast-enhanced multiphasic retrospective ECG-gated cardiac and ECG-gated high-pitch aortoiliac DSCTA with cardiac data acquisition initiated at 10% of the R-R-interval. Heart rate (HR) a…