>Just the person from whom I had hoped I would hear !
>
>Thank you for the information.
>
>>In our lab based on an analysis of 352 carotid artery duplex scans and angios
>>and calculating angiographic stenosis according to the NASCET method an ICA to
>>CCA PSV ratio of 2.7 predicts a >50% to 99% ICA stenosis with sens, spec,
>>etc of
>>about 90%.  These numbers were derived using Acuson and ATL machines and a
>>population with a high prevalence of disease.  As everyone is likely aware,
>>different machines and different populations may have slightly different, or
>>even dramatically different, cut points.  These criteria, currently not
>>published, and others soon to be derived I'm sure, must be evaluated in
>>individual labs for accuracy with your machines and your patient population.
>
>David Fox, MD
>
>**************************
>David Fox, MD
>Division of Vascular Surgery
>St. Luke's - Roosevelt Hospital Center
>425 West 59th Street
>New York, New York 10019
>
>[log in to unmask]
>[log in to unmask]
>***************************
>Please remove me from E-mail list.
>