[Retracted] CAMPO Precision128 Max ENERGY Spectrum CT Combined with Multiple Parameters to Evaluate the Benign and Malignant Pleural Effusion

Table 6

Comparison of related parameters of energy spectrum CT in benign and malignant pleural effusion.

Nature of effusion	CT value of mixed energy image (HU)	Slope of energy spectrum curve	CT value of 40 keV single energy image (HU)	CT value of 100 keV single energy image (HU)
Benign	12.61  3.39	0.56  0.04	43.15  3.79	9.11  1.38
Malignant	14.71  5.03	0.59  0.04	39.42  2.60	6.52  2.04
T value	0.200	0.057	0.005	<0.001