TABLE 3

Kidney Dose Estimates

	γ-Camera dose estimate (mGy/MBq)		Pharmacokinetics model dose estimate (mGy/MBq)
Patient no.	Administration 1	Administration 2	Administration 1	Administration 2
02	0.299	ND	0.069	0.073
03	0.277	0.337^*	0.049	0.122
04	0.207	0.154	0.036	0.034
05	0.259^*	0.208	0.041	0.041
06	0.277	0.462^*	0.053	0.057
07	0.291	0.216	0.054	0.056
08	0.216	0.199	0.039	0.040
09	0.221	0.154	0.058	0.059
10	ND	0.232	0.041	0.041
11	0.296	0.585	0.036	0.038
12	0.237	0.286^*	0.031	0.031
14	0.294^†	0.315	0.072	0.064
Average	0.261	0.283	0.048	0.048
SD	0.027	0.018	0.012	0.014

↵* Late residence time used physical decay because, inconsistent with imaging and physical half-life, scatter-corrected data showed increasing counts beyond 4 h.
↵† Negative counts in photopeak after scatter subtraction in 1 kidney.
ND = no data available, technical problems with camera.
In several of these patients, data from only 1 kidney were used for kidney dose estimates.