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Table 3 Measured dose rates and calculated effective half-lives at different time points

From: External radiation exposure, excretion, and effective half-life in 177Lu-PSMA-targeted therapies

Time point 2 ± 0.3 h 3.9 ± 0.7 h 24.2 ± 0.7 h 45.7 ± 2.1 h 67.7 ± 2.3 ha
Dose rate [μSv/h] (measured at a distance of 2 m)
 Mean 3.6 2.8 1.6 1.1 0.7a
 Std. Dev. 0.7 0.6 0.6 0.5 0.4a
 Min 2.2 1.3 0.5 0.4 0.1a
 Max 5.0 3.8 1.4 2.3 2.1a
Calculated effective half-life T1/2eff
 Mean 26.0 40.5 38.4a
 Std. Dev. 12.4 15.8 9.6a
 Min 11.0 21.7 25.7a
 Max 73.5 85.7 74.5a
  1. aThese data are only available for 25 patients (cohort of Department 2)