Correlation between CT-based measured renal volumes and nuclear-renography-based split renal function in living kidney donors. Clinical diagnostic utility and practice patterns

Introduction Living donor evaluation involves imaging to determine the choice of kidney for nephrectomy. Our aim was to study the diagnostic accuracy and correlation between CT‐based volume measurements and split renal function (SRF) as measured by nuclear renography in potential living donors and its impact on kidney selection decision. Methods We analyzed 190 CT‐based volume measurements in healthy donors, of which 65 donors had a radionuclide study performed to determine SRF. Results There were no differences in demographics, anthropometric measurements, total volumes, eGFR, creatinine clearances between those who required a nuclear scan and those who did not. There was a significant correlation between CT‐volume‐measurement‐based SRF and nuclear‐scan‐based SRF (Pearson coefficient r 0.59; p