Levine V J, Geronemus R G
New York University Medical Center, New York, USA.
Cutis. 1995 May;55(5):291-6.
The Q-switched ruby and the Q-switched neodymium YAG lasers are both widely used in the treatment of amateur and professional tattoos. Comparative evaluation of these two laser systems has not previously been performed; thus, the advantages of each laser have not been delineated. Forty-eight amateur and professional tattoos were treated with both the Q-switched ruby and Q-switched Nd:YAG lasers. The tattoos were divided in half and one side of the tattoo was treated with each laser. After one treatment, the patients returned for evaluation to assess the degree of lightening achieved by each laser. The Q-switched ruby laser was found to be superior in lightening black dye in both professional and amateur tattoos. A significant advantage was noted for the ruby laser in the removal of green tattoo pigment. The differences with the Q-switched ruby laser and the 1064 nm option of the Q-switched YAG laser were not clinically significant in the lightening or removal of other colors. The 532 nm option of the Q-switched YAG laser was superior to the Q-switched ruby and the 1064 nm option of the YAG laser in the removal of red tattoo colors in professional tattoos. Hypopigmentation was found more commonly with the Q-switched ruby laser, while textural change was noted more commonly with the Q-switched Nd:YAG laser. One of the patients treated with the Nd:YAG laser at 1064 nm showed a hypertrophic scar.
调Q红宝石激光和调Q钕钇铝石榴石激光都广泛应用于业余和专业纹身的治疗。此前尚未对这两种激光系统进行比较评估；因此，每种激光的优势尚未明确。48例业余和专业纹身患者分别接受了调Q红宝石激光和调Q钕钇铝石榴石激光治疗。将纹身分成两半，每一半分别用一种激光治疗。一次治疗后，患者返回进行评估，以评估每种激光实现的褪色程度。发现调Q红宝石激光在减轻专业和业余纹身中的黑色染料方面更具优势。红宝石激光在去除绿色纹身色素方面具有显著优势。调Q红宝石激光与调Q钕钇铝石榴石激光1064nm波长选项在减轻或去除其他颜色方面的差异在临床上不显著。调Q钕钇铝石榴石激光532nm波长选项在去除专业纹身中的红色纹身颜色方面优于调Q红宝石激光和钕钇铝石榴石激光1064nm波长选项。调Q红宝石激光更常出现色素减退，而调Q钕钇铝石榴石激光更常出现质地改变。1例接受1064nm钕钇铝石榴石激光治疗的患者出现了增生性瘢痕。
