Fig. 12
From: Transperineal ultrasound-guided prostate biopsy: what the radiologist needs to know
In A, the red arrow shows the biopsy needle within the mid-portion of the gland. By angling the head of the probe superiorly (operators hand towards the floor), the anterior gland may be accessed (blue arrow). By angling the probe inferiorly (operators hand towards the ceiling), the posterior gland may be accessed (yellow arrow). B shows the tip of the biopsy needle in the axial plane, which is done to confirm needle position, prior to biopsy