Fourty-one patients(87.2%) were nonvasculogenic ED,the PSV of single cavernosum artery exceeding 25cm/s observed in 33 patients,and the total PSV of left and right cavernosum artery exceeding 50cm/s observed in 8 patients.

• 非血管性ED组41例(87.；2%25)；其中左、右海绵体动脉PSV分别>25 cm/s者33例；左右海绵体动脉PSV相加>50 cm/s者8例。