在第三个腰椎 (L3) 以外:胸部计算机断层扫描衍生肌肉质量和质量评估作为身体组成分析的实用替代方案
Rongna Lian1, Tianjiao Tang1, Wenhua Jiang2
1Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China.
Nutrition (Burbank, Los Angeles County, Calif.)
|August 2, 2025
概括
T12CT扫描可靠地评估晚期非小细胞肺癌 (NSCLC) 患者的肌肉质量,作为L3扫描的实际替代品. 这种方法与双能X射线吸收度 (DXA) 和手握强度 (HGS) 相对应得很好.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 身体组成分析 身体成分分析
背景情况:
- 评估肌肉质量对于治疗晚期非小细胞肺癌 (NSCLC) 至关重要.
- L3 CT 扫描是标准的,但胸部CT 在临床实践中更为常见.
研究的目的:
- 评估T12CT衍生的肌肉测量作为L3.3的替代品.
- 将T12测量与双能X射线吸收度 (DXA) 和手握强度 (HGS) 相关联.
主要方法:
- 对332名IIIB/IV期NSCLC患者的横截面研究.
- 通过CT通过T12和L3测量骨肌面积 (SMA),指数 (SMI),辐射密度 (SMD) 和肌际脂肪组织 (IMAT).
- 用DXA评估瘦软组织 (LST) 和体脂质量;测量握力 (HGS).
主要成果:
- 在T12和L3 SMA和SMI之间发现了强烈的相关性 (r > 0.8).
- T12 SMA和SMI与L3措施相比,与主干LST的相关性更强.
- T12 SMA/SMI比L3参数更好地预测干部LST和HGS.
结论:
- T12CT衍生的SMA和SMI是L3的可靠替代品,用于在高级NSCLC中评估肌肉质量.
- T12 SMD是L3 SMD的合适替代品;T12 IMAT不是.
- 在临床研究中使用常见的胸部CT扫描来支持T12肌肉评估.
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