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Advances in Bone Joint Imaging-Metal Artifact Reduction.

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Reducing metal artifacts in orthopedic imaging is crucial for accurate diagnosis. This review explores advanced techniques in digital tomosynthesis, computed tomography, and magnetic resonance imaging to improve implant visualization.

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Area of Science:

  • Medical Imaging
  • Orthopedic Surgery
  • Radiology

Background:

  • Metal implants are common in orthopedic surgery, posing challenges for postoperative evaluation.
  • Artifacts from metal implants can obscure critical details, hindering diagnosis of infection or loosening.

Purpose of the Study:

  • To review technical advancements in metal artifact reduction (MAR) for orthopedic implants.
  • To discuss current and emerging imaging technologies for MAR.

Main Methods:

  • Review of technical advances in digital tomosynthesis (DT), computed tomography (CT), and magnetic resonance imaging (MRI).
  • Analysis of novel technologies and algorithms for MAR.

Main Results:

  • Current MAR techniques have not completely eliminated metal artifacts.
  • Algorithm selection depends on implant characteristics and anatomical location.
  • Future advancements may enable further MAR on existing images and through multi-modal imaging.

Conclusions:

  • Ongoing innovation in MAR algorithms and imaging sequences is necessary.
  • Combining different imaging modalities may enhance artifact reduction.
  • Close collaboration between clinicians and radiologists is vital for optimal imaging selection.