The intima media thickness (IMT),diameter (D),flow velocity (V) and AIIc value of abdominal aorta were measured with high frequency ultrasound at the beginning,the 12th and 24th week of the experiment.

• 于实验开始、12周末、2 4周末测量腹主动脉内 -中膜厚度 (IMT)、动脉内径 (D)、血流速度 (V )和内中膜校正的声学密度值 (AIIc %25 )。