■这项研究旨在通过配对先前和最近的三维重建计算机断层扫描(CT)图像,分析至少十年来个体衰老的鼻形态测量和变化程度的差异。
■总共选择了48名韩国成年患者,他们接受了至少两次鼻部CT扫描,间隔至少10年。患者分为年龄(20-39岁,40-49岁,和50岁或以上)以及初次成像时基于性别的六个亚组。在最初和最近的图像上测量了八个鼻腔参数,并根据数据对两幅图像进行配对比较。还分析了不同年龄变化程度的差异。
■平均图像间隔为12年,男性显示鼻额角增加(3.2±5.4,p=0.041),轮廓鼻长(1.7±1.7,p=0.002),鼻梁高度(1.2±1.6,p=0.002),同时显示鼻面部角度减小(-2.3±2.9,p=0.010)。女性显示鼻额角增加(2.5±5.2,p=0.010),轮廓鼻长(1.4±1.9,p<0.001),和鼻梁高度(1.3±1.6,p<0.001),随着鼻面部角度的减小(-2.0±2.1,p<0.001),glabella角度(-9.1±9.8,p<0.001),和梨形角(-8.5±10.1,p<0.001)。除鼻梁高度(p=0.036)和梨形角(p=0.022)外,大多数参数的变化程度在不同年龄段之间没有显着差异.
■我们的发现表明,衰老的鼻子表现出相对较长的鼻长度,鼻尖的角度较差,随着鼻额角的增加,轮廓鼻长,和鼻梁高度,随着鼻面部角度的减小。鼻腔形态变化的大多数程度在特定年龄段没有差异。
OBJECTIVE: This study investigated age-related differences in nasal morphometry and the degree of changes within an individual over at least a 10-year period by pairing previous and recent three-dimensional reconstructed computed tomography (CT) images.
METHODS: Forty-eight adult Korean patients who underwent at least two CT scans of the nasal region with an interval of at least 10 years were selected. Patients were categorized into six subgroups according to sex and age (20-39 years, 40-49 years, and ≥50 years) at the time of initial imaging. Eight nasal parameters were measured on the initial and recent images, and paired comparisons between the two images were performed based on the data. The differences in the degree of change by age were also analyzed.
RESULTS: Over an average image interval of 12 years, men exhibited an increase in the nasofrontal angle (3.2°±5.4°, P=0.041), profile nasal length (1.7±1.7 mm, P=0.002), and nasal bridge height (1.2±1.6 mm, P=0.002). Conversely, they showed a decrease in the nasofacial angle (-2.3°±2.9°, P=0.010). Women also demonstrated an increase in the nasofrontal angle (2.5°±5.2°, P=0.010), profile nasal length (1.4±1.9 mm, P<0.001), and nasal bridge height (1.3±1.6 mm, P<0.001). However, they exhibited a decrease in the nasofacial angle (-2.0°±2.1°, P<0.001), glabella angle (-9.1°±9.8°, P<0.001), and pyriform angle (-8.5°±10.1°, P<0.001). With the exception of the nasal bridge height (P=0.036) and pyriform angle (P=0.022), the degree of changes in most parameters did not show significant differences across age groups.
CONCLUSIONS: Our findings indicate that the aging nose exhibits a greater nasal length with inferior angulation of the nasal tip, with an increase in the nasofrontal angle, profile nasal length, and nasal bridge height, along with a decrease in the nasofacial angle. The degree of most nasal morphologic changes demonstrated no significant differences by specific age group.