The influence of different implantation depths on the hemodynamics in the treatment of stenosis in the starting segment of vertebral arteries

Yilin Zheng, Haiquan Feng, Qingsong Han, Yonggang Wang and Juan Su

Computer Methods in Biomechanics and Biomedical Engineering, 2025, vol. 28, issue 6, 841-854

Abstract: Stent implantation depth significantly influences the hemodynamics of the vertebral and subclavian arteries in treating vertebral artery stenosis. This study utilized computational fluid dynamics (CFD) to analyze key hemodynamic parameters in a vertebral artery model with a stent implanted at different depths. Results showed that excessive stent extension into the subclavian artery alters local blood flow, increasing the risk of thrombosis and plaque formation. An optimal implantation depth of 1–2 mm minimizes these risks. These findings provide a theoretical basis for optimizing stent placement, improving the efficacy and safety of interventional treatments for vertebral artery stenosis.

Date: 2025
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DOI: 10.1080/10255842.2025.2480269

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