Hi.I am trying to understand a report of a carotitid ultrasound. Pulse waves are regular and there is no arrhythmia - I can understand.Not sure what the following mean,PS/ED Velocity,Distal CCA: 65/9 cm/sec,Max ICA: 84/24 cm/sec,ECA 87/13 cm/sec,ICA/CCA 1.29,Vertebral - antegrade flow