A novel mesh regularized image block matching method with 4D-CTA provided reliable left atrial motion and strain data in ex-vivo phantom and in-vivo tests.
A novel mesh regularized image block matching method enables reliable 3D left atrial surface strain and motion estimation using 4D-CTA.
Atrial strain and motion play important roles in evaluation of stroke risks for patients with atrial fibrillation. While cardiac computed tomographic angiography (CTA) provides detailed left atrial morphology with unparallel image resolution, finding a suitable strain measurement method for CTA remains a considerable challenge. In this paper, for the first time, we introduced a mesh regularized image block matching method to estimate 3D left atrial (LA) surface strain with 4D CTA. A series of performance tests with ex-vivo phantom and in-vivo 4D-CTA data were deployed. In conclusion, our proposed method could provide reliable LA motion and strain data within limited time.
Yu et al. (Fri,) conducted a other in Atrial fibrillation. Mesh regularized image block matching method with 4D-CTA was evaluated on Left atrial motion and strain measurement performance. A novel mesh regularized image block matching method with 4D-CTA provided reliable left atrial motion and strain data in ex-vivo phantom and in-vivo tests.