Coronary CT angiography (CCTA) is an accurate non-invasive tool for the evaluation of coronary artery bypass graft (CABG). However, inability to sustain a long breath-hold, high heart rate (HR) and atrial fibrillation may affect image quality. Moreover, radiation exposure is still a matter of some concern. A scanner combining 0.23-mm spatial resolution, new iterative reconstruction and fast gantry rotation time has been recently introduced in the clinical field. The aims of our study were to evaluate interpretability, radiation exposure and diagnostic accuracy of CCTA performed with the latest generation of cardiac-CT scanners compared to invasive coronary angiography (ICA) in the assessment of bypass grafts, and non-grafted and post-anastomotic native coronary arteries.
Mushtaq S, Conte E, Pontone G, Pompilio G, Guglielmo M, Annoni A, Baggiano A, Formenti A, Mancini ME, Muscogiuri G, Nicoli F, Giannitto C, Magatelli M, Tanzilli A, Consiglio E, Fiorentini C, Bartorelli AL, Pirillo SP, Pepi M, Andreini D. Interpretability of coronary CT angiography performed with a novel whole-heart coverage high-definition CT scanner in 300 consecutive patients with coronary artery bypass grafts. J Cardiovasc Comput Tomogr 2019 Aug 7. pii: S1934-5925(19)30030-9. doi: 10.1016/j.jcct.2019.08.004