アルゴンレーザーによる単純性血管腫の治療法

Abstract

Argon laser was effective in treating some but not for all portwine stain.According to the histologic examination portwine stain are classified in four groups. 18% in 1264 portwine stain belongs to constricted type, 25% to intermediate type, 29% to dilated type and 5% to deeply located type.During past 6 years, 1264 cases (1348 sites) of portwine stain were treated with Argon laser and constricted type responded well in 48%, intermediate type in 55%, dilated type in 79% and deeply located type with partial effectiveness.Recently, a spectrophotocolorimeter, CMS-1000, was introduced to estimate the effectiveness of Argon laser to portwine stain before the treatment. So far, 2 elements were used in the measurement. R515 represents the spectro-reflectance of portwine stain to Argon laser, d515 represents the difference of spectro-reflectances between portwine stain lesion and normal skin.The smaller the R515 or the larger the d515 the better the result by Argon laser can be expected.