June 2011 · April 2025

2011 → 2025 ankle CT

Explore the aligned scans, with differences near screws and metal artifacts suppressed by default.

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What the colors mean · Delta

Orange = brighter in 2025. Blue = darker in 2025. These are scan-intensity differences; color alone does not establish bone gain or loss.

Slice — Talus anchored · delta

Plane

Registration anchor

Use this to inspect talar morphology without foot-position differences dominating.

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2011 contribution55% Delta threshold250 HU Suppress metal and MAR-uncertain voxels Limit talus-anchored delta to the talus ROI

Shaft fit: —
Talus fit: —
Grid: —

Interpretation boundary

This shows registered scan-intensity and threshold differences, not proven biological change. Slice thickness, reconstruction kernel, positioning, registration error, surgery, metal, and MAR processing can all create apparent delta. Confirm any finding in the original DICOM studies with a musculoskeletal radiologist.