Spectral quantitative parameter measurement
BEST
Quantitative parameters of spectral CT were measured on the best-displayed plane and the relative homogeneous area of lesions in 40-65 keV images of AP, VP, and conventional 120kVp in the dedicated post-processing workstation (IntelliSpace Portal 6.5, PhilipsHealthcare, Best, The Netherlands). The following quantitative measurements were performed twice, and the average value was calculated. Quantitative parameters were as follows: (I) IC of the lesion (IC