Evaluation of 2 Novel Ratio-Based Metrics for Lumbar Spinal Stenosis.

ABSTRACT:

Background and purpose

Quantitative metrics of the dural sac such as the cross-sectional area are commonly used to evaluate central canal stenosis. The aim of this study was to analyze 2 new metrics to measure spinal stenosis on the basis of the ratio between the dural sac and disc cross-sectional areas (DDRCA) and the dural sac and disc anterior-posterior diameters (DDRDIA) and compare them with established quantitative metrics of the dural sac.

Materials and methods

T2-weighted axial MR images (n = 260 patients) were retrospectively evaluated, graded for central canal stenosis as normal (no stenosis), mild, moderate, or severe from L1/L2 through L5/S1 with 1 grade per spinal level and annotated to measure the DDRCA and DDRDIA. Thresholds were obtained using a decisi

SUBMITTER: Bharadwaj UU 

PROVIDER: S-EPMC9575539 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature