Table 1.

Radiopharmaceuticals for parathyroid imaging. Characteristics, recommended activity range, and effective doses

Radiopharmaceutical	Administration route	Administered activity in adults (MBq)	Photopeak energy (keV)	Physical half-life	Effective dose per activity unit (mSv/MBq)	Effective dose for the upper administered activity (mSv)
Na[99mTc]TcO4	i.v.	74–150	140	6.04 h	0.0159*	2.4
[99mTc]Tc-MIBI	i.v.	400–900	140	6.04 h	0.00703*	6.3
[99mTc]Tc-tetrofosmin	i.v.	400–900	140	6.04 h	0.00629*	5.7
Na[123I]I	o.a. (or i.v.)	7.4–14.8	159	13.2 h	0.108* (thyroid uptake 15%)	1.6 (thyroid uptake 15%)
[18F]FCH	i.v.	100–300	511	110 min	0.020**	6.0
[11C]MET	i.v.	370–1100	511	20.3 min	0.00549*	6.0
[11C]CH	i.v.	200–650	511	20.3 min	0.0044***	2.9

i.v., intravenous; o.a.,oral administration,* [163],** [164],*** [165]