ABSTRACTS PRESENTADOS AL 11th INTERNATIONAL SYMPOSIUM "RADIONUCLIDES IN NEPHRO-UROLOGY", REALIZADO EN MONTEREY, CALIFORNIA, 13-17 MAYO 2001.
19. RENOVASCULAR
ANALYSIS IN NONFUNCTIONING TRANPLANTS.
M.D.
Rutland, L Que and I M Hassan.
Auckland Hospital Nuclear Medicine
Department, New Zealand
The vascular phase of Renal DTPA scans was analyzed to produce three measurements, namely the blood flow index (BFI); the renovascular transit time (VTT) which is produced by a form of deconvolution, and second measurement of vascular transit time (TTFS) which is calculated by dividing the renovascular volume by the BFI.
The results presented below (mean +/- 1sd) for the following groups are NORMAL transplants on days 0-1 after surgery: INFARTED transplants; acute tubular necrosis (ATN) according to the time since surgery, plus the last study before recovery: and acute rejection (AR) according to the time from onset of the rejection episode, plus the last study before either recovery from the rejection episode or the kidney being abandoned.
These results show that AR is associated with a reduction in renal blood flow and slowing or renovascular transit, which is evident within the first 40 hours of the episode. The TTFS method of measuring renovascular transit times shows greater changes during the first 4 days of rejection. Poor and deteriorating vascular indices are associated with a poor outcome of rejection episodes.
|
|
 |
