Radiation Dose Estimates for Ga-68 Citrate

---

	Estimated Radiation Dose (mGy/MBq)
ORGAN	mGy/MBq	rad/mCi
Adrenals	3.2E-02	1.2E-01
Brain	1.1E-02	4.2E-02
Breasts	1.1E-02	4.1E-02
Gallbladder Wall	1.7E-02	6.2E-02
LLI Wall	2.1E-02	7.8E-02
Small Intestine	8.8E-02	3.3E-01
Stomach	1.4E-02	5.3E-02
ULI Wall	6.6E-02	2.5E-01
Heart Wall	1.3E-02	4.9E-02
Kidneys	2.7E-02	9.8E-02
Liver	2.7E-02	1.0E-01
Lungs	1.2E-02	4.6E-02
Muscle	1.3E-02	4.7E-02
Ovaries	1.8E-02	6.5E-02
Pancreas	1.5E-02	5.5E-02
Red Marrow	2.1E-02	7.9E-02
Bone Surfaces	1.7E-02	6.3E-02
Skin	1.1E-02	4.0E-02
Spleen	3.6E-02	1.3E-01
Testes	1.2E-02	4.5E-02
Thymus	1.2E-02	4.6E-02
Thyroid	1.2E-02	4.5E-02
Urinary Bladder Wall	2.0E-02	7.4E-02
Uterus	1.7E-02	6.2E-02
Effective Dose Equivalent	2.6E-02 mSv/MBq	9.6E-02 rem/mCi

Based on the model in MIRD Dose Estimate Report No. 2 (data gathered in human subjects), J Nucl Med 14:755-756, 1973. Dynamic bladder model with 4.8-hour voiding interval.

Estimate calculated using phantom of Cristy & Eckerman (Report ORNL/TM-8381/V1 & V7). Bone and marrow model of Eckerman (Aspects of dosimetry of radionuclides within the skeleton with particular emphasis on the active marrow, In Fourth International Radiopharmaceutical Dosimetry Symposium; A.T. Schlafke-Stelson and E. E. Watson eds. CONF-851113, Oak Ridge Associated Universities, Oak Ridge, TN 37831, 1986. pp 514-534.) used.