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Post-surgery MRI of patient with metal fixation of L3-L4

Case Study
Casselman, Jan, M.D., Ph.D. AZ St-Jan AV Brugge • Belgium

MR examination

This post-surgery spine exam of a patient with metal fixation was performed on Ingenia 3.0T at AZ St.-Jan in Bruges, Belgium.

Images and findings

 T2W T2W

Metal screws can be seen in the pedicles of L3 and L4 and a metal cage is visible in the intervertebral space L3-L4 on the sagittal T2W image. Note that the roots inside the neuroforamina L3-L4 and L4-L5 are still visible despite the presence of metal screws.

The screws and cage are also visible on the transverse T2W image and do not disturb the visualization of the dural sac.

Clinical impact of using Ingenia 3.0T

Although artifacts produced by the metal fixation material may be expected to be higher on 3.0T than on 1.5T, the metal artifacts are limited in this Ingenia 3.0T case.

The Ingenia 3.0T system and its high SNR allow high spatial and contrast resolution imaging (thin slices) in a short time.

Related reading:


Metal implants are a contraindication for MRI, unless the MR compatibility for the implant is stated by the implant manufacturer. MR healthcare professionals are advised to contact the respective implant manufacturer in order to obtain the latest safety information to ensure patient safety relative to the use of an MR procedure.

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May 9, 2014

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Case Study
Ingenia 3.0T
Lumbar spine, metal artifact reduction, Musculoskeletal, Neuro, Spine

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