Dynamic Changes in the Dural Sac Cross-Sectional Area on Axial Loaded MR Imaging: Is There a Difference between Degenerative Spondylolisthesis and Spinal Stenosis?

Abstract

Axial loaded MR imaging demonstrated significantly larger changes in the DCSA in patients with DS compared those with SpS. A significant change in the DCSA was more frequently observed in patients with DS. Axial loaded MR imaging may therefore be a more useful tool to decrease the risk of underestimating the spinal canal narrowing in patients with DS than in those with SpS.