Procedure Guideline for Brain Death Scintigraphy

Article Figures & Data

Radiation Dosimetry—Adults

Radiopharmaceuticals	Administered activity MBq (mCi)	Organ receiving the largest radiation dose MGy/MBq (rad/mCi)	Effective dose MSv/MBq (rem/mCi)
^99mTc-DTPA*	555–740 i.v. (15–20)	0.065 bladder wall (0.24)	0.0063 (0.023)
^99mTc-HMPAO^†	370–1110 i.v. (10–30)	0.034 kidneys (0.0126)	0.0093 (0.034)
^99mTc-ECD^‡	370–1110 i.v. (10–30)	0.073 bladder wall (0.27)	0.011 (0.042)

↵* ICRP 53, page 188.
↵† ICRP 62, page 13.
↵‡ Radiation Dose Estimates for Radiopharmaceuticals; Radiation Internal Dose Information Center, Oak Ridge Institute for Science and Education, Oak Ridge, TN; http://www.orau.gov/ehsd/DOSETABLES.doc.
i.v. = intravenously.

Radiation Dosimetry—Children (5-Year-Old; Normal Renal Function)

Radiopharmaceuticals	Administered activity					Effective dose MSv/MBq (rem/mCi)
Radiopharmaceuticals		MBq/kg (mCi/kg)	Minimum dose MBq (mCi)	Maximum dose MBq (mCi)		Effective dose MSv/MBq (rem/mCi)
^99mTc-DTPA*	7.4 i.v. (0.2)	370 (10)	740 (20)	0.17 bladder wall (0.63)	0.017 (0.063)
^99mTc-HMPAO^†	11.1 i.v. (0.3)	185 (5)	740 (20)	0.14 thyroid (0.52)	0.026 (0.096)
^99mTc-ECD^‡	11.1 i.v. (0.3)	185 (5)	740 (20)	0.083 bladder wall (0.31)	0.023 (0.085)

↵* ICRP 53, page 188.
↵† ICRP 62, page 13.
↵‡ Radiation Dose Estimates for Radiopharmaceuticals; Radiation Internal Dose Information Center, Oak Ridge Institute for Science and Education, Oak Ridge, TN; http://www.orau.gov/ehsd/pedose.doc.
i.v. = intravenously.