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. Author manuscript; available in PMC: 2022 Mar 23.
Published in final edited form as: Abdom Radiol (NY). 2020 Dec;45(12):4252–4259. doi: 10.1007/s00261-020-02487-6

Fig. 4.

Fig. 4

Effect of bowel preparation on lesion detection. T2W (a, b), ADC (b, e) and b1500 DWI images (c, f) of a patient on active surveillance. The unprepped scan was scored as PI-RADS 1 in 2016 (a-c). However considerable artifact is present on the ADC (b) and high b value image (c). A hypointense nodular lesion 5 mm diameter was described as PI-RADS score 4 on the prep+ scan in 2017 (d–f), and a targeted biopsy revealed a Gleason 4 + 3 tumor. In comparison to the prep− scan, the rectum is collapsed, and the peripheral zone was more clearly depicted on the prep+ scan