Yamamoto Mao, Mori Hiroki, Akiyama Masako, Okazaki Mutsumi
Department of Plastic and Reconstructive Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Department of Plastic Surgery, Tsuchiura Kyodo General Hospital, Ibaraki, Japan.
Arch Plast Surg. 2024 Jun 19;51(4):356-362. doi: 10.1055/a-2309-2731. eCollection 2024 Jul.
The purpose of this study was to clarify fading, red, green, and blue values (RGB) change, and color reproducibility for nipple-areola complex (NAC) tattoos. NAC tattooing was performed on 60 sites in 59 Japanese patients prospectively. The evaluation was assessed using digital photo, Casmatch standardization, and RGB and luminance values preoperatively, immediately after, 1 week, 1, 3, 6, and 12 months after tattooing. RGB and luminance values changes over time, time-adjusted fading rate, and the rate of luminance at 12 months were calculated. In color reproducibility study ( = 34), RGB values after 12 months were compared with the color sample about dark/reddish and light/less reddish pigments. RGB varied widely from immediately after to 1 month after tattooing. For RGB and luminance, significant differences were seen between pre and immediate after, 1 and 3 months, 3 and 6 months, and 6 and 12 months. In G values, significant differences were seen between all neighboring points. The fading rate tended to decrease as time progresses, but was not significant, that is, fading continued even between 6 and 12 months. Luminance was 9% brighter than contralateral NAC at 12 months. Color reproducibility tended to be higher with dark/reddish pigments, despite no significant differences. The fading rate of tattooed NACs tended to decrease as time progresses, but fading still occurs between 6 and 12 months. Luminance was 9% brighter than contralateral NAC at 12 months after.
本研究的目的是阐明乳头乳晕复合体（NAC）纹身的褪色、红色、绿色和蓝色值（RGB）变化以及颜色再现性。前瞻性地对59例日本患者的60个部位进行了NAC纹身。术前、术后即刻、术后1周、1个月、3个月、6个月和12个月使用数码照片、Casmatch标准化以及RGB和亮度值进行评估。计算RGB和亮度值随时间的变化、时间调整后的褪色率以及12个月时的亮度率。在颜色再现性研究中（n = 34），将12个月后的RGB值与深色/微红和浅色/微红色素的颜色样本进行比较。
RGB从纹身后即刻到1个月变化很大。对于RGB和亮度，术前与术后即刻、1个月与3个月、3个月与6个月以及6个月与12个月之间存在显著差异。在G值方面，所有相邻点之间均存在显著差异。褪色率倾向于随着时间的推移而降低，但不显著，也就是说，即使在6个月至12个月之间仍在褪色。12个月时，亮度比同侧NAC亮9%。尽管没有显著差异，但深色/微红颜料的颜色再现性往往更高。
纹身NAC的褪色率倾向于随着时间的推移而降低，但在6个月至12个月之间仍会褪色。12个月后，亮度比同侧NAC亮9%。
