ISSN:
1435-604X
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
,
Physik
,
Technik allgemein
Notizen:
Summary Response of rabbit ear blood vessels and defects on the pig skin to Argon and CO2 lasers, (1 to 4 Watts and 0,1 to 0,2 sec pulses), were analysed. Examining lesion depth and its diameter, it was seen, using both lasers, that when power and time exposure increased, lesion depth increased as well, At the same time, when power was increased and the time of irradiation was constant, the diameter of the lesion remained approximately the same. Histologically, by using Argon laser at 1'5 W, there is no evidence of skin lesion but vessel coagulation occurs. On the other hand, more power (3 to 4 W) produces skin destruction. CO2 laser at 1'5 W causes skin destruction while 3 W penetrates deeper, cutting all tissues and producing vessel-wall fragmentation and haemorrhage. In contrast to CO2 laser, which definitly stops blood circulation by cutting the vessels, Argon laser entails many recurrences and vessels re-start circulation; a fact which is not desirable in cutaneous vascular disorders treatment.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02276673
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