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目的：利用计算机断层扫描分析日本女性面部表浅肌肉腱膜系统的年龄相关变化。

Objective Analysis of Age-Related Changes in the Superficial Musculoaponeurotic System in Japanese Females Using Computed Tomography.

作者信息

Okuda Itsuko, Abe Katsuhiro, Yoshioka Naoki, Komemushi Takayoshi, Jinzaki Masahiro, Ohjimi Hiroyuki

出版信息

Aesthet Surg J Open Forum. 2023 May 18;5:ojad043. doi: 10.1093/asjof/ojad043. eCollection 2023.

DOI:10.1093/asjof/ojad043
PMID:37333712
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10270653/
Abstract

BACKGROUND

The superficial musculoaponeurotic system (SMAS) is an anatomical structure involved in facial aging.

OBJECTIVES

This study focused on SMAS thickness and aimed to establish age-related changes in SMAS thickness.

METHODS

A total of 100 adult Japanese female participants (aged 20-79 years) were enrolled in the study. The participants were divided into 3 age groups: Y, M, and E, comprising 20 to 39, 40 to 59, and 60 to 79 years, respectively. Anatomical structures were used as landmarks to standardize the SMAS analysis sites. The SMAS in a fixed analysis area (FAA) was quantified using multi-detector computed tomography (MDCT), and the relationship between SMAS thickness and age, as well as BMI, was analyzed.

RESULTS

In 96 participants (four were excluded due to imaging artifacts), a moderate yet significant negative correlation was found between the average (A)-SMAS thickness within the FAA and age. The A-SMAS thickness in groups M and E was significantly lower than that of group Y, and the mean value of group E was significantly lower than that of group M. SMAS thickness was greater in the young population. The SMAS gradually became thinner with aging. A statistically significant correlation was not found between SMAS thickness and BMI.

CONCLUSIONS

Using MDCT technology, age-related changes in SMAS were successfully analyzed. This highly objective analysis method corroborated the aesthetic surgical knowledge of the SMAS features related to facial aging. In clinical applications, our findings may help elucidate the mechanisms involved in facial aging.

摘要

背景

表浅肌肉腱膜系统（SMAS）是一种与面部衰老相关的解剖结构。

目的

本研究聚焦于SMAS厚度，旨在确定与年龄相关的SMAS厚度变化。

方法

共有100名成年日本女性参与者（年龄20 - 79岁）纳入本研究。参与者被分为3个年龄组：Y组、M组和E组，分别为20至39岁、40至59岁和60至79岁。使用解剖结构作为地标来标准化SMAS分析部位。使用多排螺旋计算机断层扫描（MDCT）对固定分析区域（FAA）内的SMAS进行量化，并分析SMAS厚度与年龄以及体重指数（BMI）之间的关系。

结果

在96名参与者中（4名因成像伪影被排除），发现FAA内平均（A）-SMAS厚度与年龄之间存在中等程度但显著的负相关。M组和E组的A-SMAS厚度显著低于Y组，E组的平均值显著低于M组。年轻人群的SMAS厚度更大。随着年龄增长，SMAS逐渐变薄。未发现SMAS厚度与BMI之间存在统计学显著相关性。

结论

使用MDCT技术，成功分析了与年龄相关的SMAS变化。这种高度客观的分析方法证实了与面部衰老相关的SMAS特征的美容外科学知识。在临床应用中，我们的发现可能有助于阐明面部衰老所涉及的机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/e552487f8dd6/ojad043f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/bbc030ed7008/ojad043f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/2974ba21dfc0/ojad043f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/1db60b3758af/ojad043f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/3afc569f443a/ojad043f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/e552487f8dd6/ojad043f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/bbc030ed7008/ojad043f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/2974ba21dfc0/ojad043f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/1db60b3758af/ojad043f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/3afc569f443a/ojad043f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1070/10270653/e552487f8dd6/ojad043f5.jpg

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