On VR images,the vocal process and muscular process were demostrated in a rate of 53.6% and 60.7%,and the symmetry of bilateral CAJ was revealed in 27 cases.

• VR图像上显示两侧环杓关节对称者 2 7例 (96.；4%25 )；声带突、肌突显示率分别为 5 3