Reproducibility of human kidney perfusion and volume determinations with electron beam computed tomography

Lilach O. Lerman, Allen L. Flickinger, Patrick F. Sheedy, Stephen T. Turner

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

RATIONALE AND OBJECTIVES. Alterations in whole kidney, cortical, and medullary perfusion and volume play a pivotal role in various physiologic and pathophysiologic processes. Electron-beam computed tomography (EBCT) provides accurate measurements of these traits in animals, but their reproducibility in humans has not been established. METHODS. Perfusion, volume, and flow measurements were obtained by EBCT in eight healthy human volunteers under controlled conditions on two consecutive days. RESULTS. Mean values for whole kidney, cortical, and medullary perfusion and volume obtained with EBCT were similar in scan 1 and scan 2 (P > 0.1), and correlated highly. Coefficients of variation for the repeated measurements usually were less than 10%. Values obtained for renal regional perfusion and volume agreed with previously reported values. CONCLUSIONS. Electron-beam computed tomography estimates of single whole kidney, cortical, and medullary perfusions and volumes are highly reproducible in normal humans, and may be useful to advance understanding of renal involvement in human disease.

Original languageEnglish (US)
Pages (from-to)204-210
Number of pages7
JournalInvestigative radiology
Volume31
Issue number4
DOIs
StatePublished - Apr 1 1996

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Keywords

  • Renal circulation
  • renal volume
  • x-ray CT

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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