Table 2.

Ratio of the measured to the expected dose per catheter and dose rate per dwell position for different PSD positions in the urethra and rectum. Data shown here represent the average accuracies over the different catheters and different dwell positions along with their associated standard deviations.

PSD position	Measured∕planned per catheter	Measured∕planned per dwell position
Urethra—pos. 1	0.993 ± 0.021	0.994 ± 0.030
Urethra—pos. 4	1.000 ± 0.015	0.995 ± 0.023
Urethra—pos. 8	1.013 ± 0.014	1.011 ± 0.025
Urethra—pos. 9	1.015 ± 0.019	1.014 ± 0.020
Urethra—pos. 10	1.013 ± 0.018	1.007 ± 0.016
Rectum—pos. 7	1.059 ± 0.045	1.025 ± 0.028