Radiation Dose Estimates for I-123 IMP

---

	Estimated Radiation Dose (mGy/MBq)
ORGAN	mGy/MBq	rad/mCi
Adrenals	1.3E-02	4.6E-02
Brain	1.9E-02	7.1E-02
Breasts	8.9E-03	3.3E-02
Gallbladder Wall	1.2E-02	4.4E-02
LLI Wall	1.4E-02	5.0E-02
Small Intestine	1.3E-02	4.7E-02
Stomach	1.2E-02	4.3E-02
ULI Wall	1.2E-02	4.4E-02
Heart Wall	1.4E-02	5.1E-02
Kidneys	1.1E-02	4.0E-02
Liver	9.0E-03	3.3E-02
Lungs	4.2E-02	1.6E-01
Muscle	1.0E-02	3.8E-02
Ovaries	1.4E-02	5.1E-02
Pancreas	1.3E-02	4.8E-02
Red Marrow	1.1E-02	4.1E-02
Bone Surfaces	1.9E-02	7.0E-02
Skin	7.1E-03	2.6E-02
Spleen	1.2E-02	4.4E-02
Testes	1.0E-02	3.8E-02
Thymus	1.2E-02	4.3E-02
Thyroid	1.1E-02	4.1E-02
Urinary Bladder Wall	5.7E-02	2.1E-01
Uterus	1.6E-02	6.0E-02
Effective Dose Equivalent	1.9E-02 mSv/MBq	7.1E-02 rem/mCi

Based on data gathered in six human volunteers. Average residence times:
Brain 0.60 hr
Liver 0.165 hr
Lungs 1.46 hr
Remainder 11.5 hr

Urinary bladder: 100%, Tb = 34.1 hr. Bladder voiding interval 4.8 hours.
Dynamic bladder model with 4.8-hour voiding interval
Estimate calculated using phantom of Cristy & Eckerman (Report ORNL/TM-8381/V1 & V7)