ABSTRACTS PRESENTADOS AL 11th INTERNATIONAL SYMPOSIUM "RADIONUCLIDES IN NEPHRO-UROLOGY", REALIZADO EN MONTEREY, CALIFORNIA, 13-17 MAYO 2001.
26. TIMING OF FUROSEMIDE IN DIURETIC RENOGRAPHY COMPARATIVE EVALUATION OF A NEW f+0 TECHNIQUE.
Burke
D, Adeyoju B, Pollard AJ, Atkinson C, McKie C, O'Reilly
PH
Department of Urology, Stepping Hill Hospital, Stockport UK.
INTRODUCTION: Diuretic renography is recognized as a useful test for the diagnosis of obstruction. One of the most critical points in the technique is the timing of the diuretic. It is known that some pediatric urologists give the radiopharmaceutical and diuretic in the same syringe for convenience, but there is no evidence that it is accurate as the F+20 or F-15 techniques and no data from adult practice.
MATERIALS
AND METHODS: 29 patients with dilated upper tracts underwent a
double renogram within 24 hours of each other, 17 having F+20 and
studies, and
12 F-15 and
studies.
RESULTS:
There was agreement between the F+20 and
technique in 15/17 cases, and agreement between the F-15 and
in 11/12 cases. Split renal function was identical (within 5% error
margin) in 27/29 cases. The cases where there was disagreement were
either hugely dilated or complex systems (e.g. urinary diversion,
neuropathic bladder with gross megaureter and compromised renal function).
CONCLUSION:
diuresis
renography is an acceptable technique with an accuracy comparable
to F+20 and F-15 studies. In widely dilated, equivocal or complex
cases, an F-15 study should be preferred.
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