Percutaneous myocardial revascularization marking and therapeutic or diagnostic agent delivery system

摘要

A system (10) and method for marking percutaneous myocardial revascularization channels in a human heart and introducing into the channels a therapeutic or diagnostic agent (53) by inserting a catheter system (14) into the left ventricle of a heart (44), applying tissue ablative energy through the catheter (26) to create a channel into the heart wall (48), introducing an imaging medium to the heart wall proximate the channel (50) for marking the position of that channel for imaging, and introducing in or proximate the channel a therapeutic or diagnostic agent (53).