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Actas Urol Esp (Engl Ed) ; 43(8): 419-424, 2019 Oct.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-31164308

RESUMO

OBJECTIVE: A cross-sectional study was carried out with the objective of evaluating the usefulness of Doppler ultrasound with resistive index (RI) measure compared with renal scintigraphy with 99mTc-DTPA in children with unilateral ureteropelvic junction obstruction. METHODS: The study included children under 15 years with a diagnosis of unilateral ureteropelvic junction obstruction, healthy contralateral kidney with or without an antecedent of ureteropyeloplasty. The selected patients were sent to the Nuclear Medicine Department to carry out a renal scintigraphy with 99mTc-DTPA and days later were sent to the Radiology Department for the performance of Renal Doppler Ultrasound with RI. RESULTS: A total of 21 patients were included in the study, 15 males and 6 females, representing 71.4% and 28.6%, respectively. Mean age was 5.3 years. Only 3 had an antecedent of ureteropyeloplasty in the affected kidney. The scintigraphy reported data of unilateral obstruction in 18 patients, including the 3 patients with previous surgery. The average glomerular filtration rate (GFR) obtained with the scintigraphy was 100.28ml/min. The average GFR in affected kidneys was 43.03ml/min and 57.24ml/min in healthy kidneys (p<.001). Doppler ultrasound with RI reported ectasia in 100% of the affected kidneys and one normal contralateral kidney. The average RI in affected kidneys was 0.69mm/s and 0.50mm/s in healthy kidneys (p<.001). CONCLUSIONS: With the results obtained, we can suggest that ultrasound Doppler with measurement of RI can be an alternative tool to renal scintigraphy with 99mTc-DTPA in some cases.


Assuntos
Pelve Renal/diagnóstico por imagem , Rim/diagnóstico por imagem , Compostos Radiofarmacêuticos , Pentetato de Tecnécio Tc 99m , Ultrassonografia Doppler , Obstrução Ureteral/diagnóstico por imagem , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Masculino , Cintilografia
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