Renal morphology and function immediately after extracorporeal shock-wave lithotripsy
| Autor: | B Finlayson, M R Millner, Clyde M. Williams, J V Kaude, K N Scott |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Kidney
Magnetic Resonance Spectroscopy medicine.diagnostic_test business.industry Ultrasonic Therapy medicine.medical_treatment Radioisotope renography Urography General Medicine Effective renal plasma flow Lithotripsy Kidney Function Tests Extracorporeal shock wave lithotripsy Extracorporeal Kidney Calculi medicine.anatomical_structure Ureter medicine Humans Radiology Nuclear Medicine and imaging Nuclear medicine business Enlarged kidney Radioisotope Renography |
| Zdroj: | American Journal of Roentgenology. 145:305-313 |
| ISSN: | 1546-3141 0361-803X |
| DOI: | 10.2214/ajr.145.2.305 |
| Popis: | 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 treated kidneys and total parenchymal obstruction in 9 (22%). MRI disclosed one or more of the following abnormalities in 24 (63%) of 38 treated kidneys: (1) loss of corticomedullary differentiation, (2) perirenal fluid, (3) subcapsular hematoma, (4) hemorrhage into a renal cyst, and (5) unexplained abnormalities. 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|