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Abstract #3106

Magnetic resonance imaging provides comparable spinal curvature measurements to computerized tomography

James B Miller1, Kathryn R. Marusich2, Christopher F. Beaulieu2, Akshay S. Chaudhari2, and Garry E. Gold2
1Occidental College, Los Angeles, CA, United States, 2Stanford University, Stanford, CA, United States

Synopsis

Keywords: Bone/Skeletal, Skeletal, Musculoskeletal

Motivation: Spinal curvature measurements may be used to better understand scoliosis, lordosis, and low back anatomy. The unknown effect of the type of imaging modality on semi-automatically measured spinal curvature motivated this study, as well as the unknown relationship between image contrast and curvature measurements.

Goal(s): To quantify how spinal curvature measurements are impacted by changing imaging modalities, specifically between CT and T1-weighted MR images, and between T1-weighted and T2-weighted MR images.

Approach: We compared 20 patients’ spinal curvature, calculated four separate ways from their L5-L1 vertebral centroids in each imaging modality.

Results: We found no significant differences across modalities in calculating spinal curvature.

Impact: This study impacts research done between CT scans and MR images, supporting intra-modality spinal curvature calculations from vertebral centroids calculated semi-automatically. This study also supports the equivalency of spinal curvature calculations from CT scans, T1-weighted and T2-weighted MR images.

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Keywords