EJNMMI Physics

Table 2 Median [1. and 3. quartile] organ- and time-specific effective half-lives (h) of ¹²⁴I-mIBG in 21 adult patients

From: Biodistribution and radiation dosimetry of ¹²⁴I-mIBG in adult patients with neural crest tumours and extrapolation to paediatric models

Organ	Effective half-life (h)
Organ	T_{eff, 2 h–4 h}	T_{eff1, 4 h–24 h}	T_{eff2, 24 h–48 h}	T_{eff3, 48–120 h}
Salivary glands	NA	19.6 [16.3, 43.0]	23.9 [21.7, 28.3]	24.9 [23.0, 28.3]
Heart wall	NA	16.7 [14.5, 19.2]	20.0 [12.0, 36.0]	28.4 [20.9, 37.5]
Liver	NA	16.9 [13.1, 28.9]	20.4 [14.0, 23.4]	42.8 [30.2, 49.6]
Spleen	NA	31.3 [21.1, 54.2]	25.1 [16.5, 31.6]	34.7 [28.5, 38.7]
Kidneys	NA	17.4 [15.6, 28.0]	26.3 [19.7, 31.9]	36.5 [25.5, 40,6]
Urinary bladder	NA	17.4 [10.7, 29.1]	12.4 [7.7, 20.7]	57.6 [49.2, 72.0]
Blood	7.7 [4.6, 14.2]	16.2 [9.8, 25.6]	27.1 [20.7, 32.0]	29.2 [27.5, 36.3]
Whole-body	9.4 [7.2, 17.9]	23.8 [21.0, 33.3]	25.6 [24.0, 27.3]	30.1 [27.6, 31.0]

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