Radionuclide imaging of ureteric peristalsis. 1989

C A Lewis, and M J Coptcoat, and S S Carter, and A J Hilson, and J E Wickham, and P J Shah
Department of Medical Physics, Institute of Urology, London.

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.

UI MeSH Term Description Entries
D008297 Male Males
D009119 Muscle Contraction A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments. Inotropism,Muscular Contraction,Contraction, Muscle,Contraction, Muscular,Contractions, Muscle,Contractions, Muscular,Inotropisms,Muscle Contractions,Muscular Contractions
D011866 Radioisotope Renography Graphic tracing over a time period of radioactivity measured externally over the kidneys following intravenous injection of a radionuclide which is taken up and excreted by the kidneys. Renography,Radioisotope Renographies,Renographies,Renographies, Radioisotope,Renography, Radioisotope
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D014513 Ureter One of a pair of thick-walled tubes that transports urine from the KIDNEY PELVIS to the URINARY BLADDER. Ureters
D014515 Ureteral Diseases Pathological processes involving the URETERS. Disease, Ureteral,Diseases, Ureteral,Ureteral Disease
D014563 Urodynamics The mechanical laws of fluid dynamics as they apply to urine transport. Urodynamic

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