Radiation Dose Estimates for Tc-99m DTPA (injection)

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	Estimated Radiation Dose
ORGAN	mGy/MBq	rad/mCi
Adrenals	2.0E-03	7.4E-03
Brain	1.3E-03	4.7E-03
Breasts	1.1E-03	4.0E-03
Gallbladder Wall	2.2E-03	8.1E-03
LLI Wall	5.6E-03	2.1E-02
Small Intestine	3.4E-03	1.3E-02
Stomach	1.9E-03	6.9E-03
ULI Wall	2.9E-03	1.1E-02
Heart Wall	1.7E-03	6.3E-03
Kidneys	5.7E-03	2.1E-02
Liver	1.8E-03	6.6E-03
Lungs	1.5E-03	5.5E-03
Muscle	2.2E-03	8.3E-03
Ovaries	5.5E-03	2.0E-02
Pancreas	2.1E-03	7.7E-03
Red Marrow	2.2E-03	8.0E-03
Bone Surfaces	3.3E-03	1.2E-02
Skin	1.2E-03	4.6E-03
Spleen	1.9E-03	6.8E-03
Testes	3.8E-03	1.4E-02
Thymus	1.5E-03	5.6E-03
Thyroid	1.5E-03	5.6E-03
Urinary Bladder Wall	7.7E-02	2.8E-01
Uterus	1.0E-02	3.7E-02
Effective Dose Equivalent	8.2E-03 mSv/MBq	3.0E-02 rem/mCi

Based on the model in MIRD Dose Estimate Report No. 12 (data gathered in human subjects), J Nucl Med 25:503-505, 1984.

Estimate calculated using phantom of Cristy & Eckerman (Report ORNL/TM-8381/V1 & V7)