Table 2.

Correlation coefficients according to Spearman in a analysis between the degree of venous stenosis and the analysed parameter for each modality (flowmeter, O2C and ICG-videoangiography).

Parameter	Estimate	p-value	Parameter	Estimate	p-value
FlowVenpre	−0.811	<0.001	ICGVenPre1Max	−0.636	<0.001
FlowVenPost	−0.792	<0.001	ICGVenPre2Max	−0.702	<0.001
FlowVenContra	−0.529	<0.001	ICGVenPreMaxincr	−0.549	1.169
			ICGVenPreMaxdecr	0.471	<0.001
			ICGVenPreAUC	−0.656	<0.001
			ICGVenPost1Max	−0.269	0.001
			ICGVenPost2Max	−0.443	<0.001
O2CVenSo2S	−0.151	0.033	ICGVenPostMaxincr	−0.129	0.109
O2CVenSo2D	0.115	0.104	ICGVenPostMaxdecr	−0.004	0.959
O2CVenHbS	−0.216	0.002	ICGVenPostAUC	−0.532	<0.001
O2CVenHbD	0.146	0.038	ICGContra1Max	0.383	<0.001
O2CVenVeloS	−0.068	0.336	ICGContra2Max	0.297	<0.001
O2CVenVeloD	−0.169	0.017	ICGContraMaxincr	0.466	<0.001
O2CVenFlowS	−0.074	0.301	ICGContraMaxdecr	−0.386	<0.001
O2CVenFlowD	−0.173	0.015	ICGContraAUC	0.134	0.062

Abbreviations: flow = flowmeter; O2C = laser-Doppler flowmetry and tissue spectrophotometry; ICG = indocyanine green; Coding key: Modality (flow, O2C or ICG) + vessel (artery) + localization (pre-, poststenotic or accompanying) + parameter