Structural alterations of small resistance arteries, as evaluated by the tunica media to internal lumen ratio (M/L) of subcutaneous small resistance arteries, may also predict cardiovascular events.

• 采用皮下小动脉中膜与管腔内径的比值(M/L)可以评估小阻力动脉结构的改变，同时小阻力动脉结构的改变也可以预测心血管事件的发生。