Radiation Dose Estimates for In-111 DTPA

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	Estimated Radiation Dose (mGy/MBq)
ORGAN	mGy/MBq	rad/mCi
Adrenals	6.2E-03	2.3E-02
Brain	4.8E-03	1.8E-02
Breasts	3.8E-03	1.4E-02
Gallbladder Wall	7.2E-03	2.7E-02
LLI Wall	2.8E-02	1.0E-01
Small Intestine	1.4E-02	5.4E-02
Stomach	7.0E-03	2.6E-02
ULI Wall	1.2E-02	4.4E-02
Heart Wall	5.6E-03	2.1E-02
Kidneys	1.4E-02	5.3E-02
Liver	5.0E-03	1.9E-02
Lungs	4.6E-03	1.7E-02
Muscle	8.3E-03	3.1E-02
Ovaries	2.5E-02	9.4E-02
Pancreas	6.7E-03	2.5E-02
Red Marrow	8.2E-03	3.0E-02
Bone Surfaces	1.0E-02	3.8E-02
Skin	4.6E-03	1.7E-02
Spleen	4.8E-03	1.8E-02
Testes	1.9E-02	6.9E-02
Thymus	4.6E-03	1.7E-02
Thyroid	4.5E-03	1.7E-02
Urinary Bladder Wall	4.3E-01	1.6E+00
Uterus	5.4E-02	2.0E-01
Effective Dose Equivalent	4.1E-02 mSv/MBq	1.5E-01 rem/mCi

Based on data gathered in dogs by McAfee et al., J Nucl Med 20:1273,1278, 1979. Assumed distribution and retention:

Liver 2.68% Tb = 0.17 hr 0.28% Tb = 17.3 hr
Kidneys 4.18% Tb = 0.17 hr 0.39% Tb = 13.8 hr
Spleen 0.226% Tb = 0.40 hr 0.009% Tb = 38.5 hr
Small Intestine 3.57% Tb = 0.23 hr 0.06% Tb = 27.7 hr
Stomach 1.49% Tb = 0.87 hr 0.013% Tb = 31.5 hr
Muscle 21.2% Tb = 0.54 hr 0.6% Tb = 7.7 hr
Total Body 79.7% Tb = 0.51 hr 20.3% Tb = 7.86 hr
Clearance through urinary bladder. Bladder voiding interval 4.8 hours.

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