Radionuclide imaging of ureteric peristalsis.
Dynamic renal scintigraphy is a successful and minimally invasive technique for evaluating renal function. An extension to the basic technique involving fast-frame acquisition and a modified analysis is described which enables ureteric function to be examined. Ureteric peristalsis was assessed in 32 patients using this technique. The results from 5 representative studies are described in detail. Normally functioning ureters exhibit peristaltic contractions at a frequency of up to 3/min. Hyperperistalsis that exceeds 4 contractions/min is associated with obstruction. Peristaltic behaviour in 9 patients examined before and after ESWL was not altered.
Lewis
C A
CA
Department of Medical Physics, Institute of Urology, London.
Coptcoat
M J
MJ
Carter
S S
SS
Hilson
A J
AJ
Wickham
J E
JE
Shah
P J
PJ
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D011866:Radioisotope Renography; D014513:Ureter / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014515:Ureteral Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014563:Urodynamics