PARS DEFECTS: How to find them easily on MRI
PARS DEFECTS ON MRI
Pars defects can be difficult to see on MRI. Lets look at how best to find them
Bone that connects the superior and inferior articular process at each level.
A continuous piece of bone extending from the pedicle down to the inferior articular process.
- The best plane is Sagittal. More difficult to see on axial.
- The KEY is to see a continuous piece of bone between the superior and inferior articular processes.
- If you don't see a continuous bone, there is a pars defect.
- Sometimes need to follow on 2-3 slices as it may not be in a true sagittal plane.
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