Abstract
The purpose of this study was to evaluate the feasibility of the conductance catheter (CC) method in measuring cross-sectional area (CSA) of small vessels like human coronary arteries. Lumen CSA (A) of phantom tubes (2–10 mm in diameter) and excised canine arteries (n = 10, 2.3–4.5 mm in diameter) were measured with 3-F CC (A cc) and intravascular ultrasound (A us). To investigate the influence of parallel conductance in accuracy of A cc, solution with various resistivities was applied to the surrounding of the arteries (n = 4). A cc showed an excellent agreement with phantom model CSA. In the excised arteries, A cc and A us highly correlated (R 2 = 0.906) with each other. When the resistivities of the solution surrounding the vessels was changed, A cc–Aus regression lines were similar regardless of different resistivities. The conductance method is feasible to measure CSA of small vessels like human coronary arteries.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call