GE LOGIQ 500 Advanced Reference Manual page 162

Urology Calculations (Option)
PSA Measurement
4–116
The "PSA Calculation" preset, located on System Parameters
page 3, allows PSA to be calculated two ways. The two
selections are:
PSAD: Prostatic Specific Antigen (PSA) Density – defined as:
PPSA: Predicted Prostate Specific Antigen – defined as:
PPSA = Volume  PPSA Coefficient
PPSA Coefficient is entered in the "PPSA Coefficient
(1)" and "PPSA Coefficient (2)" presets, located on
Preset Program page 4.
PSAD and PPSA are calculated on the Urology Report Page.
PSAD = PSA/Volume
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0