Research Article
Computed Tomography-Based Prediction of Lumbar Pedicle Screw Loosening
Figure 2
ROC curve analysis on the predictive validity of HU value of different lumber vertebrae. ROC curve analysis revealed that the average HU value of L1-L5 has relatively larger area under the curve (AUC) of 0.689 (95% CI: 0.605-0.773).