[Angioroentgenologic response of rat M-1 sarcoma to low-energy infrared laser irradiation at varying frequency].
After rats with sarcoma M-1 inoculated in the femur area were exposed to low-energy (0.54 mT1) infra-red laser irradiation, 100Hz, for 10 min, the number of contrast-enhanced vessels of tumor fell sharply as compared with controls. That effect lasted for almost 24 hrs. At 1kHz, the total-sum of diameters of such vessels still increased 24 hrs after the exposure. When at 10kHz, that index decreased, and by day 3 vascular pattern and diameter came back to normal in all experiments.
Nikitina
R G
RG
Kaplan
M A
MA
D000818:Animals; D004307:Dose-Response Relationship, Radiation; D007259:Infrared Rays / Q000627:therapeutic use*; D028022:Low-Level Light Therapy; D011859:Radiography; D051381:Rats; D012513:Sarcoma, Experimental / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000532:radiotherapy*