Table 3.

Accuracy of GFR Estimation Methods and Correlations with Reference GFR

Note.—Median difference and root mean square error (RMSE, difference between estimated and reference GFRs) are expressed in milliliters per minute per 1.73 square meters. MR-CM = MR corticomedullary, MR-WK = MR whole-kidney, R² = coefficient of determination.

^*Data are the percentages of estimated GFRs, derived by using the given methods, that were within plus or minus 10%, 30%, or 50% of the reference GFRs.

^†Numbers in parentheses are 95% confidence intervals.