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