Radiation Dose Estimates for Tc-99m HEDP

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	Estimated Radiation Dose
ORGAN	mGy/MBq	rad/mCi
Adrenals	2.4E-03	8.8E-03
Brain	1.6E-03	6.0E-03
Breasts	1.0E-03	3.8E-03
Gallbladder Wall	2.1E-03	7.7E-03
LLI Wall	3.8E-03	1.4E-02
Small Intestine	2.7E-03	1.0E-02
Stomach	1.8E-03	6.5E-03
ULI Wall	2.4E-03	8.8E-03
Heart Wall	1.7E-03	6.4E-03
Kidneys	9.3E-03	3.5E-02
Liver	1.8E-03	6.6E-03
Lungs	1.6E-03	5.8E-03
Muscle	2.0E-03	7.4E-03
Ovaries	3.8E-03	1.4E-02
Pancreas	2.2E-03	8.1E-03
Red Marrow	3.7E-03	1.4E-02
Bone Surfaces	1.9E-02	7.1E-02
Skin	1.2E-03	4.4E-03
Spleen	2.0E-03	7.3E-03
Testes	2.6E-03	9.6E-03
Thymus	1.5E-03	5.5E-03
Thyroid	1.6E-03	6.0E-03
Urinary Bladder Wall	4.1E-02	1.5E-01
Uterus	6.1E-03	2.2E-02
Effective Dose Equivalent	6.1E-03 mSv/MBq	2.3E-02 rem/mCi

Based on model in MIRD Dose Estimate Report No. 13 (data gathered in human subjects), J Nucl Med 30:1117-1122, 1989. Bladder voiding interval 4.8 hr.

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.