Drift Monitoring

Population Stability Index (PSI), Kolmogorov-Smirnov tests, and online accuracy proxies across all production models.

Models on watch

NeuroVision · CardioMR · AbdomenSeg

Avg PSI (30d)

0.14

Below 0.25 threshold

Auto-retrain runs

last 90 days · all green

PSI & KS · NeuroVision v5.1.0

drift watch

Online accuracy proxy

vs ground truth backfill

Feature drift breakdown · NeuroVision

Pixel intensity (mean)HIGH

0.31

PSI 30d

Slice thicknessMED

0.22

PSI 30d

Scanner mfgrMED

0.18

PSI 30d

Patient ageLOW

0.09

PSI 30d

Acquisition TRLOW

0.07

PSI 30d

Field strengthLOW

0.04

PSI 30d

Contrast useLOW

0.12

PSI 30d

Slice countMED

0.26

PSI 30d