Table 3 Sample size implications of tumor blood flow repeatability from the present study. Calculations were performed to detect relative changes of − 20%, − 30%, and − 50% using a two-sided significance test for paired data with a significance level of 5% and a power of 95%. Log-transformed data were used for all calculations

From: Repeatability of tumor blood flow quantification with ⁸²Rubidium PET/CT in prostate cancer — a test-retest study