This record was last updated August 15, 2024 (before its estimated December 2024 completion). Its status may not reflect the trial's current state.
Summary
This randomized crossover study aims to validate measurements of renal perfusion in healthy males with PET/CT, using 15-oxygen labeled water as tracer, against the validated multiparametric MRI technique.
The study will determine:
* Total renal blood flow and regional renal perfusion at baseline (rest) and during isometric muscle exercise of the upper arm, using PET/CT (with 15-oxygen labeled water as a tracer) and MRI.
* The coefficient of variation of renal blood flow and regional renal perfusion measurements at baseline and during isometric muscle exercise of the upper arm, using PET/CT (with 15-oxygen labeled water as a tracer) and MRI.
* Regional renal oxygenation and oxygen extraction at baseline and during isometric muscle exercise of the upper arm using MRI.
* The coefficient of variation on regional renal oxygenation and oxygen extraction measurements at baseline and during isometric muscle exercise of the upper arm using MRI.