Differential Renal Function Estimation Using Computerized Tomography Based Renal Parenchymal Volume Measurement

Shelby N. Morrisroe, Ruthie R. Su, Kyongtae T. Bae, Brian H. Eisner, Cheng Hong, Susan Lahey, Onofrio A. Catalano, Dushyant V. Sahani, Stephen V. Jackman

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: Nuclear renal scan is currently the gold standard imaging study to determine differential renal function. We propose helical computerized tomography as a more efficient way to gain renal function information. Renal parenchymal volume is measured and percent total renal volume is used as a surrogate marker for differential renal function. Materials and Methods: Computerized tomography and diuretic enhanced nuclear renal scan were performed in 33 patients with chronic obstruction. Computerized tomography was contrast enhanced in 23 cases and nonenhanced in 10. Diagnoses included ureteropelvic junction obstruction, ureteral stricture and extrinsic compression. Using semiautomated boundary delineation with manual editing method the parenchymal volume of each kidney was measured and percent renal volume was calculated. Percent renal volume was compared with percent renal function, as determined by nuclear renal scan. Correlations between the 2 measures were evaluated using the Spearman or Pearson coefficient. Results: Strong correlations were observed between percent renal function and percent renal volume in all cases (r = 0.90, p

Original languageEnglish
Pages (from-to)2289-2293
Number of pages5
JournalJournal of Urology
Volume183
Issue number6
DOIs
Publication statusPublished - Jun 2010

Keywords

  • hydronephrosis
  • kidney
  • kidney function tests
  • technetium Tc 99m mertiatide
  • tomography

ASJC Scopus subject areas

  • Urology

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