Catheter obstruction effect on pulsatile flow rate - pressure drop during coronary angioplasty

摘要

Quantitative methods to measure the hemodynamic consequences of various endovascular intervention including balloon angioplasty are limited. catheters measuring translesional pressure drops during balloon angioplasty procedures can cause flow blockage and thus inaccurate estimates of pre-and post-intervention flow rates. The purpose of this investigation is to examine the influence of the presence and size of an angioplasty catheter on measured pulse pressure gradients across human coronary artery stenoses.