Overcoming MRI challenges with metallic implantsAdvanced techniques and technologies to minimize scan artifacts

MSK Imaging

From the white paper:

Opportunity
Total hip and knee arthroplasty procedures are projected to increase by 175% and 673%, respectively, from 2005 to 20301. Likewise, revision surgeries of total knee and total hip replacements are estimated to grow exponentially over the same period. These impressive growth projections require accurate and cost-effective imaging techniques for post-operative surveillance and diagnosis of implant-related complications. Because magnetic resonance (MR) imaging delivers high spatial and contrast resolution of bone and periprosthetic soft tissues, it is well suited for imaging of arthroplasty implants and has great potential for short- and long-term growth of MSK referrals and generation of revenue.

Challenge
MR imaging of arthroplasty implants can assist physicians in detecting loosening, periprosthetic fractures, tendon tears, nerve injuries, and adverse reactions to metallic implant products with high accuracy2,3,4. However, metal-induced accelerated dephasing and displacement of MRI signals cause spatial distortions and suboptimal fat suppression⁵. The ensuing artifacts can obscure abnormalities and cause diagnostic inaccuracies⁶, which then may lead to delays in diagnosis, appropriate care, and increased expenses.

Johns Hopkins is addressing this challenge using Advanced WARP with SEMAC. Download the white paper to learn how.


Overcoming the Challenge of MRI Metal Artifacts around Orthopedic Implants
Jan Fritz, MD, a board-certified and fellowship-trained MSK radiologist attending at Johns Hopkins and a world expert in metal artifact reduction technologies, discusses how he uses the SEMAC technique to reduce metal artifacts and dramatically improve MR image quality of patients with metallic orthopedic and arthroplasty implants.

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