Area under ROC curve of VFT in the diagnosis of MS is 0.74 in men, and 0.79 in women, appropriate cut-offs of VFT for men is 43.5 mm,in women is 23.8 mm.

• 经超声测量的VFT诊断MS的ROC曲线下面积男性0·74,女性0·79,最佳切点值男性43·5mm,女性23·8mm。