[Retracted] Correlation with Spectral CT Imaging Parameters and Occult Lymph Nodes Metastases in Sufferers with Isolated Lung Adenocarcinoma

Table 1

Contrast by spectral CT parameters of arterial phase with two groups (mean ± SD).

Argument	Metastasis group (n = 1 72)	Nonmetastasis group (n = 180)	t
λHU	1.81 ± 0.12	2.06 ± 0.21	13.630	<0.001
IC	18.80 ± 0.80	20.38 ± 2.55	7.769	<0.001
WC	1030.85 ± 14.60	1032.54 ± 13.78	1.117	0.265
NIC	0.21 ± 0.01	0.24 ± 0.02	17.673	<0.001
NWC	1.02 ± 0.02	1.03 ± 0.07	1.804	0.072
Neff-Z	8.63 ± 0.08	8.73 ± 0.10	10.331	<0.001