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Table 2 Recovered activity in the tumor insert before and after compensation for partial volume effect through recovery coefficients. Recovered activity concentrations are compared to measured values

From: Phantom validation of quantitative Y-90 PET/CT-based dosimetry in liver radioembolization

Day of scan True activity concentration (MBq mL−1) Average recovered concentration (MBq mL−1) [1st–3rd quartile] (no recovery coefficient applied) Average recovered concentration (MBq mL−1) [% deviation] (recovery coefficient applied) Homogeneity Index Reconstruction parameters Scan Time (min)
1 5.50 ± 0.16 4.30 [3.24–5.36] 5.3 [− 3.6%] 0.34 2i, 15s 15
4 2.52 ± 0.08 1.95 [1.4–2.51] 2.41 [− 4.4%] 0.42 2i, 15s 15
5 1.94 ± 0.06 1.51 [1.12–1.88] 1.86 [− 4.1%] 0.36 2i, 15s 30
6 1.49 ± 0.04 1.03 [0.72–1.34] 1.27 [− 14.7%] 0.42 2i, 15s 30
12 0.31 ± 0.01 0.22 [0.076–0.294] 0.27 [− 12.4%] 1.01 2i, 15s 30