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Bland–Altman analysis of different methods (ellipsoid, mid-slice, MIROS and Sheffield TKV Tool) to measure TKV compared to the reference manual method. Bland–Altman plots (bold line, mean; dashed lines, 95% confidence intervals) comparing the percentage (%) volume difference of each method to the reference manual method to measure TKV in 61 patients. The Sheffield TKV Tool demonstrates higher accuracy and precision compared to all other methods
