Renal morphology and function immediately after extracorporeal shock-wave lithotripsy
The acute effects of extracorporeal shock-wave lithotripsy (ESWL) on morphology and function of the kidney were evaluated by excretory urography, quantitative radionuclide renography (QRR), and magnetic resonance imaging (MRI) in 33 consecutive patients. Excretory urograms demonstrated an enlarged kidney in seven (18%) of 41 treatments and partial or complete obstruction of the ureter by stone fragments after 15 (37%) of 41 treatments. Total effective renal plasma flow (ERPF) was not changed after ESWL, but the percentage ERPF of the treated kidney was decreased by more than 5% in 10 (30%) of 33 cases. QRR images showed partial parenchymal obstruction in 10 (25%) of 41 teated kidneys and total parenchymal obstruction in 9 (22%). MRI disclosed one or more abnormalities in 24 (63%) of 38 treated kidneys. Treated kidneys were normal by all three imaging methods in 26% and abnormal by one or more tests in 74% of cases. The morphologic and functional changes are attributed to renal contusion resulting in edema and extravasation of urine and blood into the interstitial, subcapsular, and perirenal spaces.
- Research Organization:
- Univ. of Florida College of Medicine, Gainesville
- OSTI ID:
- 5219903
- Report Number(s):
- CONF-860416-; TRN: 85-023699
- Journal Information:
- AJR, Am. J. Roentgenol.; (United States), Vol. 145:2; Conference: ARRS meeting, Washington, DC, USA, 14 Apr 1986
- Country of Publication:
- United States
- Language:
- English
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