Quantitative study of temporal soft tissue loss in facial aging
10.3760/cma.j.cn114453-20220415-00116
- VernacularTitle:面部老化中颞部软组织损失的量化研究
- Author:
Pengfei CHEN
1
;
Hengshu ZHANG
;
E YANG
;
Sen CHEN
Author Information
1. 重庆医科大学附属第一医院烧伤医疗美容科，重庆 400016
- Keywords:
Magnetic resonance imaging;
Temporal soft tissue;
Temporal depression;
Temporal filling;
Facial aging
- From:
Chinese Journal of Plastic Surgery
2023;39(2):141-148
- CountryChina
- Language:Chinese
-
Abstract:
Objective:Magnetic resonance imaging (MRI) was used to perform multi-plane quantitative analysis of temporal soft tissue thickness, and the measurement data set of temporal soft tissue thickness was initially established to provide clinical reference for the diagnosis and treatment of temporal rejuvenation.Methods:High definition images of Han population in Southwest China who underwent head MRI in the First Affiliated Hospital of Chongqing Medical University from December 2016 to December 2021 were randomly collected in this study. A total of 12 measuring points were set, which were evenly distributed in the upper, middle, lower, anterior and posterior regions of the temporal, including the thickness of the whole temporal soft tissue (NA, Na, MA, Ma, GA, Ga) and the thickness of the temporal muscle (NB, Nb, MB, Mb, GB, Gb). They were divided into different groups according to sex, age (≤30 years old, 31-40 years old, 41-50 years old, 51-60 years old, >60 years old) and body mass index (BMI < 21 kg/m 2, 21-26 kg/m 2, > 26 kg/m 2). The differences of temporal soft tissue thickness under different gender, age and BMI were compared. Independent sample t-test was used for comparison of normal distribution measurement data between two groups, and one-way analysis of variance was used for comparison between multiple groups. Results:(1) A total of 278 patients were included, including 140 males and 138 females, ranging in age from 12 to 82 years, with an average age of 44.5 years, and BMI of 18.4 to 33.4 kg/m 2. According to age group: ≤30 years old, 56 cases; 31-40 years old, 64 cases; 41-50 years old, 56 cases; 51- 60 years old, 56 cases; >60 years old, 46 cases. According to BMI, males (< 21 kg/m 2, 38 cases; 21-26 kg/m 2, 56 cases; > 26 kg/m 2, 46 cases) and females(< 21 kg/m 2, 48 cases; 21-26 kg/m 2, 50 cases; >26 kg/m 2, 40 cases) were grouped. (2) Male temporal soft tissue was thicker than female, especially temporalis muscle, and the difference in 6 temporal muscle thickness measurements were statistically significant ( P<0.05). (3) In general, the temporalis muscle in males at 31-40 years old and in females at ≤30 years old tend to be thicker than that in other age groups. In both sexes, the temporalis muscle became thinner with age after reaching the peak. (4) The whole layer of soft tissue in the temporal region thickened with the increase of BMI in both sexes, and the whole layer of soft tissue in the lower temporal region was thicker than that in the middle and upper temporal region. Conclusion:Temporal soft tissue thickness is associated with gender, age and BMI. The temporal muscle thickness of both sexes was gradually thinning with age, while the whole temporal soft tissue was thickening with the increase of BMI.
