In the new technique, called percutaneous transmyocardial laser revascularization (PTMR), the laser is delivered via a catheter, which is threaded through an artery until it reaches the heart.

• 新技术被称为经皮跨心肌激光血管再造术(percutaneous transmyocardial laser revascularization ，PTMR)，激光由导管传送的，导管则由动脉进入直达心脏。