Bill Johnson, Yakima WA.




I thank you for posting your question.  And, while the answers posted
vary on some of the finer points, I believe you can see there is a
consensus, as well as room for discussion.  There are dozens of reasons
none of the tests or protocols we use are "definitive in every
instance", and the advice you received regarding correlating your
findings with the clinical picture is probably the best advice you could
ever get, especially from the motley crew that responded.


The interest from cardiology circles is that more and more studies are
showing the usefulness of ABIs as a marker for cardiovascular disease,
and the fact that interventionalists have found a new "territory" to
mine in peripheral stenting.


I encourage you to continue to ask questions.  And I hope you realize
the multiple digressions in the responses are not a result of gel
exposure or years of Doppler noises.  


I am going now, to find out if I can get my fries in a bowl.


Thanks for your curiosity.


-----Original Message-----
From: UVM Flownet [mailto:[log in to unmask]] On Behalf Of Laura
Sent: Wednesday, October 12, 2005 9:39 PM
To: [log in to unmask]
Subject: ABI questions from curious student


Hello, I am a vascular ultrasound student. Our class is having a
discussion about ABIs and segmental waveforms/pressures. We understand
that many labs start with just ABIs and stop if they are normal. If they
are abnormal, they will continue on to complete segmental waveforms and

I am wondering what the consensus is among professionals, about these
questions: Is there an advantage, for the patient (or the lab,) to
perform the segmental pressures if the ABIs are normal? Or, what is the
rationale/justification for only using ABIs when they are normal? Are
normal ABIs going to be definitive in every instance?

Thank you for your consideration,

Laura Sikkenga
Jackson Community College
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