Yes, I've had a PIRADS score that's decreased over the last 3 years, I think it depends on the radiologist.
PSA test in October 2018 was 3.2, sent for a MRI scan in Worcester which showed lesion with PI RADS score of 4. Fusion Target Biopsy took 17 cores which were all benign.
PSA increased to 4.2, MRI with contrast in a 3T scanner in London booked for 18th October 2019 - PI RADS score is now 3 (reduced from 4), new consultant wants 6 monthly PSA tests with the possibility of a template biopsy if there is a significant increase.
February 2020 - PSA decreased to 3.4
August 2020 - PSA back to 4.2
MRI with contrast in Birmingham in October 2020, PIRADS score now back to 3/4. Waiting on the next PSA test in February 2021.
December 2020 - started to experience gross hematuria in initial urine stream, suspected bladder cancer but after a cystoscopy in February 2021 bleeding was found to come from prostate. PSA now 4.4
August 2021 - PSA down to 4.2
September 2021 - MRI with contrast in a 3T scanner in London, results a week later - no sign of any lesion on my prostate (amazing after a PI RADS of 4 in 2018). Consultant has discharged me with a requirement for a yearly PSA test.