Table 1. 3D-GS TRUS and 3D-PDS detection of prostate cancer by biopsy site in 112 patients.

TRUS result	Pathological finding
	Benign	Malignant
3D-GS TRUS
Negative result	791	40
Positive result	296	229
3D-PDS
Negative result	846	56
Positive result	241	213

3D-GS TRUS, three-dimensional greyscale transrectal ultrasound; 3D-PDS, three-dimensional power Doppler sonography.