Quantitative evaluation of the effectiveness of metal artifact reduction using a dedicated phantom across cone-beam computed tomography devices

Key Points

• To propose and validate the residual ratio of the metal artifact area as a metric for evaluating metal artifact reduction effectiveness.
• Proposed a new metric called residual ratio of the metal artifact area (ResRaMAA).
• Validated the metric using a dedicated phantom.
• Performed quantitative evaluations across various cone-beam computed tomography devices.
• Demonstrated that ResRaMAA effectively quantifies the metal artifact reduction.
• Validated the metric across multiple CBCT devices, showing consistent results.