In a message dated 08/04/2000 10:42:47 PM Eastern Daylight Time,
[log in to unmask] writes:

<< Hi all-

 I have a question regarding Doppler interrogation of parenchymal renal
 arteries during an RA duplex exam. Is angle correction necessary while
 sampling flow from upper, middle, and lower poles to measure acceleration
 time? We are having some differences of opinion in our lab.

  >>
Angle correction is not needed when evaluating the segmental and interlobar
arteries. The acceleration slope does not change with correcting the
insonation angle, this goes also for pulsatility and resistive indices. Only
the velocity is affected with angle correction.

Kelly Estes RDMS, RDCS, RVT
The Sanger Clinic