Appendix I: PI-RADS STANDARIZATION
APPENDIX I: Report Templates (this section is under construction)
Standard (FreeText) Report
APPENDIX II: SectorMap
The segmentation model used in ACR– PI-RADS v2 employs thirty-nine sectors/regions: thirty-six for the prostate, two for the seminal vesicles and one for the external urethral sphincter.
The prostate is divided into right/left on axial sections bya vertical line drawn through the center (indicated by the prostatic urethra), and into anterior/posterior bya horizontal line through the middle of the gland.
The right and left peripheral zones (PZ) at prostate base, midgland, and apex are each subdivided into three sections: anterior (a), medial posterior (mp), and lateral posterior (lp).
The right and left transition zones (TZ) at prostate base, midgland, and apex are each subdivided into two sections: anterior (a) and posterior (p).
The anterior fibromuscular stroma (AS) is divided into right/left at the prostate base, midgland, and apex. The seminal vesicles (SV) are divided into right/left.
The sector map illustrates an idealized “normal prostate”. In patients and their corresponding MRI images, many prostates have components that are enlarged or atrophied, and the PZ may obscured by an enlarged TZ. In such instances, in addition to the written report, a sector map which clearly indicates the location of the findings will be especially useful for localization.