INTRAARTERIAL OCCLUSION BY RADIOFREQUENCY

Arterial occlusion using radiofrequency energy was performed. The leng th of the noninsulated part of the guidewire was 10 mm and the duratio n of radiofrequency supply was 20 s. Animal experiments were carried o ut in 17 canine arteries; 4 out of 6 arteries less than 2.3 mm in diam eter were completely occluded during the 20 s radiofrequency supply. A clinical application was also successfully performed without any comp lications. Arterial occlusion with radiofrequency can be applied to ve ssels less than about 2 mm in diameter.