1. Transmission line model as a digital twin for abdominal aortic aneurysm patients
- Author
-
Donghyeon Kim, Divyesh Narayanan, Shih-Hsien Sung, Hao-Min Cheng, Chen-Huan Chen, Chang-Sei Kim, Ramakrishna Mukkamala, and Jin-Oh Hahn
- Subjects
Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Abstract We investigated the potential of the transmission line model as a digital twin of aneurysmal aorta by comparatively analyzing how a uniform lossless tube-load model were fitted to the carotid and femoral artery tonometry waveforms pertaining to (i) 79 abdominal aortic aneurysm (AAA) patients vs their matched controls (CON) and (ii) 35 AAA patients before vs after endovascular aneurysm repair (EVAR). The uniform lossless tube-load model fitted the tonometry waveforms pertaining to AAA as well as CON and EVAR. In addition, the parameters in the tube-load model exhibited physiologically explainable changes: when normalized, both pulse transit time and reflection coefficient increased with AAA and decreased after EVAR, which can be explained by the increase in arterial compliance and the decrease in arterial inertance due to the aortic expansion associated with AAA. In sum, the tube-load model may have the potential as a digital twin to enable personalized AAA monitoring.
- Published
- 2024
- Full Text
- View/download PDF