Ok, I won't make any comments about your physician undervaluing basic vascular understanding and using appropriate medical terminology. You can always default to " partial retrograde waveform" is seen in the vertbral artery. But the reality is a gallstone is a gallstone and a pre-steal waveform is a pre-steal waveform. Sent from Yahoo Mail on Android On Thu, Nov 1, 2018 at 10:04 PM, Mo<[log in to unmask]> wrote: How do you describe a pre-steal "bunny ear" vertebral waveform? Our physician doesn't approve of us using pre-steal to describe the waveform. She describes that term as being a diagnoses on preliminary reports. Is there a better descriptor for the waveform other than pre-steal? To unsubscribe or search other topics on UVM Flownet link to: http://list.uvm.edu/archives/uvmflownet.html To unsubscribe or search other topics on UVM Flownet link to: http://list.uvm.edu/archives/uvmflownet.html