NGHIÊN CỨU CÁC PHƯƠNG PHÁP ĐO KÍCH THƯỚC NHÂN TRẮC VÙNG MŨI MẶT, ỨNG DỤNG TRONG PHẪU THUẬT TẠO HÌNH, THẨM MỸ

Abstract

Objective: Compare direct and indirect nasal anthropometric measurement methods through standardized photographs and determine the correlation between these two methods. Method: This is a cross-sectional study of students studying at Pham Ngoc Thach University of Medicine from May 2019 to January 2021. The anthropometric dimensions of the nasal radix were measured directly on students and indirectly through standardized photos using Image J software at Ho Chi Minh City University of Technical Education. Results: The study surveyed 182 students, with 55.5% female, ages 20 - 26 years old. Most dimensions have differences when measured directly and indirectly through standardized images, except for the distance of the kyphosis point - the point between bone and cartilage (k - r). There is a robust correlation between the two direct measurements (both > 0.9) and a moderate to robust correlation between the two measurement methods. The multivariate regression equation between the two methods is Direct measurement = 1.0048 x indirect measurement + 0.0317, with R2 = 0.96. Conclusion: Although the direct measurement method brings results close to reality, it has many shortcomings and is difficult to deploy on a large scale. The indirect measurement method through standardized photos has many advantages and can overcome the weaknesses of direct measurement if possible deviations that may occur during the measurement process are limited.