■肌少症的筛查工具是测量小腿周长,SARC-F或SPPB。然而,并非所有这些工具都具有高灵敏度,特异性,和低误差幅度。这项研究调查了下肢3D人体测量学在筛查肌肉减少症方面的潜力。
■从2022年10月至2023年2月,我们回顾性分析了45至85岁有肌肉减少症风险的患者的3D人体扫描仪和生物阻抗分析的结果。3D扫描仪测量大腿和小腿的表面和体积值。当骨骼肌指数(SMI)小于5.7时,将患者归入低SMI组,指示肌肉减少症。
■62例患者中有6例被归类为低SMI组,显示明显较低的右值,左,与其他患者相比,平均小腿体积和平均小腿表面(右小腿体积2.62Lvs.3.34L,p=0.033;左小腿体积2.62Lvs.3.25L,p=0.044;平均小腿体积2.62Lvs.3.29L,p=0.029;平均小腿表面积0.12m2vs.0.13m2,p=0.049)。大腿体积和表面无统计学差异。通过AUC-ROC分析,平均小腿体积是最显著的临界值(右小腿体积2.80L,AUC=0.768;左小腿体积2.75L,AUC=0.753;平均小腿体积3.06L,AUC=0.774;平均小腿表面0.12m2,AUC=0.747)。
■小腿体积和表面值与低SMI有显着关系,对于低SMI,平均小腿体积是最重要的截止筛选值。3D扫描仪证明了其作为筛查肌少症的新手段的价值。
UNASSIGNED: The screening tools for sarcopenia are measuring calf circumference, SARC-F or SPPB. However, not all of these tools have high sensitivity, specificity, and low margins of error. This research investigates potential of 3D anthropometry of the lower extremities on screening of sarcopenia.
UNASSIGNED: From October 2022 to February 2023, we retrospectively analyzed results of 3D body scanner and bio-impedance analysis for patients aged 45 to 85 at risk of sarcopenia. The 3D scanner measured the surface and volume values of both thighs and calves. When skeletal muscle index (SMI) is less than 5.7, patients were classified to Low SMI group, indicative of sarcopenia.
UNASSIGNED: A total six out of 62 patients were classified to Low SMI group, showing significantly lower values of right, left, mean calf volumes and mean calf surface than the other patients (right calf volume 2.62 L vs. 3.34 L, p = 0.033; left calf volume 2.62 L vs. 3.25 L, p = 0.044; mean calf volume 2.62 L vs. 3.29 L, p = 0.029; mean calf surface 0.12 m2 vs. 0.13 m2, p = 0.049). There was no statistical difference in thigh volume and surface. Through AUC-ROC analysis, mean calf volume was the most significant cut-off value (right calf volume 2.80 L, AUC = 0.768; left calf volume 2.75 L, AUC = 0.753; mean calf volume 3.06 L, AUC = 0.774; mean calf surface 0.12 m2, AUC = 0.747).
UNASSIGNED: The calf volume and surface values have significant relationship with low SMI, and the mean calf volume was the most significant cut-off screening value for Low SMI. The 3D scanner demonstrated its value as a new means for screening sarcopenia.