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Renal parenchyma thickness: a rapid estimation of renal function on computed tomography
Kaplon, Daniel M; Lasser, Michael S; Sigman, Mark; Haleblian, George E; Pareek, Gyan.
Afiliação
  • Kaplon, Daniel M; The Warren Alpert School of Medicine of Brown University. Division of Urology. Department of Surgery. Section of Minimally Invasive Urologic Surgery. Rhode Island. US
  • Lasser, Michael S; The Warren Alpert School of Medicine of Brown University. Division of Urology. Department of Surgery. Section of Minimally Invasive Urologic Surgery. Rhode Island. US
  • Sigman, Mark; The Warren Alpert School of Medicine of Brown University. Division of Urology. Department of Surgery. Section of Minimally Invasive Urologic Surgery. Rhode Island. US
  • Haleblian, George E; The Warren Alpert School of Medicine of Brown University. Division of Urology. Department of Surgery. Section of Minimally Invasive Urologic Surgery. Rhode Island. US
  • Pareek, Gyan; The Warren Alpert School of Medicine of Brown University. Division of Urology. Department of Surgery. Section of Minimally Invasive Urologic Surgery. Rhode Island. US
Int. braz. j. urol ; 35(1): 3-8, Jan.-Feb. 2009. ilus, graf
Article em En | LILACS | ID: lil-510256
Biblioteca responsável: BR1.1
ABSTRACT

Purpose:

To define the relationship between renal parenchyma thickness (RPT) on computed tomography and renal function on nuclear renography in chronically obstructed renal units (ORUs) and to define a minimal thickness ratio associated with adequate function. Materials and

Methods:

Twenty-eight consecutive patients undergoing both nuclear renography and CT during a six-month period between 2004 and 2006 were included. All patients that had a diagnosis of unilateral obstruction were included for analysis. RPT was measured in the following manner The parenchyma thickness at three discrete levels of each kidney was measured using calipers on a CT workstation. The mean of these three measurements was defined as RPT. The renal parenchyma thickness ratio of the ORUs and non-obstructed renal unit (NORUs) was calculated and this was compared to the observed function on Mag-3 lasix Renogram.

Results:

A total of 28 patients were evaluated. Mean parenchyma thickness was 1.82 cm and 2.25 cm in the ORUs and NORUs, respectively. The mean relative renal function of ORUs was 39 percent. Linear regression analysis comparing renogram function to RPT ratio revealed a correlation coefficient of 0.48 (p < 0.001). The linear regression equation was computed as Renal Function = 0.48 + 0.80 * RPT ratio. A thickness ratio of 0.68 correlated with 20 percent renal function.

Conclusion:

RPT on computed tomography appears to be a powerful predictor of relative renal function in ORUs. Assessment of RPT is a useful and readily available clinical tool for surgical decision making (renal salvage therapy versus nephrectomy) in patients with ORUs.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Obstrução Ureteral / Furosemida / Rim Tipo de estudo: Prognostic_studies Limite: Adolescent / Adult / Aged / Aged80 / Humans Idioma: En Revista: Int. braz. j. urol Assunto da revista: UROLOGIA Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google
Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Obstrução Ureteral / Furosemida / Rim Tipo de estudo: Prognostic_studies Limite: Adolescent / Adult / Aged / Aged80 / Humans Idioma: En Revista: Int. braz. j. urol Assunto da revista: UROLOGIA Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Brasil