论文部分内容阅读
血管内超声显像能够检出并定量显示血管内治疗的机械效果。本文报告,应用血管内超声导管系统评定经皮冠脉腔内成形术(PTCA)的形态学效果。方法 20MHz的机械探头轴在外径4.8F的导管内转动,转速为600～900rpm。超声晶体的最佳焦距在1.5mm范围,最大穿透深度为 1cm。
Intravascular ultrasound imaging can detect and quantify the mechanical effects of endovascular therapy. This paper reports the use of intravascular ultrasound catheter system to assess the morphological effects of percutaneous transluminal coronary angioplasty (PTCA). Method A 20 MHz mechanical probe shaft was rotated within a 4.8-F OD catheter at a speed of 600-900 rpm. The best focal length of ultrasonic crystal in 1.5mm range, the maximum penetration depth of 1cm.