Table 2.

Descriptions of measured parameters

Index parameter	Definition	Units
Prostate D90-PI	the minimum dose received by 90% of the PI using TRUS-based prostate volume	%
Prostate D90-post	the minimum dose received by 90% of the postimplant CT-based prostate volume	%
Prostate V100-PI	the percent of the PI TRUS-based prostate volume receiving at least 100% of the prescription dose	%
Prostate V100-post	the percent of the postimplant CT-based prostate volume receiving at least 100% of the prescription dose	%
Prostate V150-PI	the percent of the PI TRUS-based prostate volume receiving at least 150% of the prescription dose	%
Prostate V150-post	the percent of the postimplant CT-based prostate volume receiving at least 150% of the prescription dose	%
Urethral D90-PI	the urinary catheter dose of the minimum dose received by 90% of the PI using TRUS-based urethral volume	Gy
Urethral D90-post	the urinary catheter dose of the minimum dose received by 90% of the postimplant CT-based urethral volume	Gy
Urethral D10-PI	the urinary catheter dose of the minimum dose received by 10% of the PI using TRUS-based urethral volume	Gy
Urethral D10-post	the urinary catheter dose of the minimum dose received by 10% of the postimplant CT-based urethral volume	Gy
Urethral D5-PI	the urinary catheter dose of the minimum dose received by 5% of the PI using TRUS-based urethral volume	Gy
Urethral D5-post	the urinary catheter dose of the minimum dose received by 5% of the postimplant CT-based urethral volume	Gy
RV100-PI	the PI using TRUS-based rectal volume in cubic centimeters that received at least 100% of the prescribed dose	cm3
RV100-post	the postimplant CT-based rectal volume in cubic centimeters that received at least 100% of the prescribed dose	cm3
RD2-PI	the minimum dose received by 2% of the PI using TRUS-based rectal volume	Gy
RD2-post	the minimum dose received by 2% of the postimplant CT-based rectal volume	Gy

PI: prostate implantation

RV100: Rectal V100

RD2: Rectal D2