Use of powerful infrared pulsed Nd-YAG laser for treating osteogenic sarcoma

摘要

Powerful infra-red laser radiation may induce necrosis of a malignant tumor located in a human bone without destructing skin cover. A superficial irradiation of the osteogenic sarcoma with an Nd-YAG laser (pulse power no less than 10 MW, average power 100 - 300 mW, time of exposure 10 - 90 min) has resulted in a severe damage of the tumor (more than 90% of the tumor mass) in 57% of cases. A combined laser/gamma irradiation showed a severe damage in 83% of cases. The results obtained suggest that laser radiation with the above parameters combined with gamma radiation may be used in treatment of osteogenic sarcoma.