did not reach statistical significancep = 0.6078
The area under the ROC curves for the standardized HUs was 0.899 (95% CI [0.875–0.919]) compared with 0.879 (95% CI [0.853–0.901]) for raw HU measurements although the difference did not reach statistical significance ( p = 0.6078) using DeLong's paired measurements ROC analysis [ 15 ].