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. 2018 Jan 15;32(3):175–181. doi: 10.1007/s12149-018-1231-6

Table 1.

Normal standardized heart-to-mediastinum ratios and washout rates

Standardized HMR (early) Standardized HMR (late) WR, % (background and decay correction) WR, % (decay correction) WR, %  (calculated using standardized HMR)
Mean 3.10 3.29 13.0 16.0 − 6.5
SD 0.43 0.48 8.4 5.8 8.8
Quantile 2.5% 2.18 2.26 − 3.5 5.9 − 30.2
Quantile 97.5% 3.97 4.39 34.0 30.1 14.2

SD standard deviation, HMR heart-to-mediastinum ratio