Cone Beam CT (CBCT) Arthrogram of the Ankle in Assessement of Osteochondral or Cartilage Lesions

Weight-Bearing Cone Beam CT Arthrogram of the Ankle: a Lower Radiation Dose Technique to Evaluate Osteo-chondral Lesions or Cartilage Lesions: Is it the Future of the arthroCT?

This study aims to compare weight-bearing Cone Beam CT arthrogram and conventional CT arthrogram in assessement of patients with ankle osteo-chondral or cartilage lesions.

Weight-bearing Cone Beam CT (CBCT) arthrogram, a technique with less radiation dose than conventional CT, is hypothesized non-inferior to conventional CT arthrogram to diagnose osteo-chondral (OCL) or cartilage lesions of the ankle.

Inclusion Criteria:

• Patients aged ≥ 18 years;
• Patients require CT arthrogram of the ankle;
• Affiliated to a social security schema;
• Informed consent signed by patients.

Exclusion Criteria:

• Pregnant women;
• Impossibility of injection of intra-articular contrast product;
• Hypersensitivity reactions to iodinated contrast agent;
• Patient refusal;
• Patient under french AME scheme;
• Patient under guardianship by tutor or curator.