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Table 2 HU ranges for automatic ROI marking for several materials

From: Validation of a measuring technique with computed tomography for cement penetration into trabecular bone underneath the tibial tray in total knee arthroplasty on a cadaver model

ROI of

Range in HU

Trabecular tibia bone

-192 to 516

Penetrated cement

1062 to 1706

Cortical bone

1386 to 1864

Prosthesis

> 2475