An algorithm for prostate cancer early detection An algorithm for prostate cancer early detection. DRE, digital rectal examination; 5-ARI, 5-alpha-reductase inhibitor; PSAV, PSA velocity (ng/mL/year) calculated on at least three consecutive values over at least an 18- to 24-month. (Based on NCCN guidelines, data from the Baltimore Longitudinal Study on Aging, and Prostate Cancer Prevention Trial.) Source: Cancer, Current Medical Diagnosis & Treatment 2018 Citation: Papadakis MA, McPhee SJ, Rabow MW. Current Medical Diagnosis & Treatment 2018; 2017 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/2192/cmdt18_ch39_f002-1.png&sec=168004658&BookID=2192&ChapterSecID=168004201&imagename= Accessed: October 08, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved