Table 5.

Pearson correlation coefficients between spirometric variables and thoracic, pulmonary, and heart blood volumes and CT quantitative indices for control and heart failure. Blood volumes were associated with obstructive changes in expiratory flows and EVLW with restrictive changes in lung volumes in the patients with HF, but not in the control subjects.

	Thoracic blood volume	Pulmonary blood volume	Heart blood volume	Mean	Skew	Kurtosis	FWHM
Control
FVC	.27	.48	−.05	−.13	.19	.31	−.15
FEV1	.51*	.47	.40	.25	−.09	.01	.17
FEV1/FVC	.31	.08	.46	.35	−.22	−.22	.28
FEF25–75	.20	.09	.25	.23	−.02	−.01	.10
PEF	.17	−.02	.33	.32	−.30	−.24	.32
Heart Failure
FVC	.39	.29	.42	−.55*	.51*	.49*	−.53*
FEV1	−.04	−.04	−.04	−.37	.49*	.47*	−.38
FEV1/FVC	−.64*	−.50*	−.67*	.16	.09	.10	.11
FEF25–75	−.33	−.25	−.35	−.19	.40	.40	−.31
PEF	−.46*	−.51*	−.38	.13	−.20	−.27	.03

^*P<0.05