The impact of cardiopulmonary hemodynamic factors in volumetry for pulmonary nodule management

BMC Medical Imaging

Table 4 Parameter estimates for the prediction of Volume

Variable	B	95% CI	t	p	Effect size
(Constant)	− 37.40	[− 48.82, − 25.98)	− 6.426	*** < 0.001	0.030
Appropriate segmentation	− 32.69	[− 37.17, − 28.20]	− 14.291	*** < 0.001	0.135
Average diameter	24.10	[22.66, 25.54]	32.824	*** < 0.001	0.451
Vascular distance	− 0.98	[− 1.42, − 0.54]	− 4.368	*** < 0.001	0.014
Difference of the MPA diameter between systole and diastole	2.26	[1.52, 2.99]	6.019	*** < 0.001	0.027
Lower third (coronal)	13.38	[9.84, 16.93]	7.410	*** < 0.001	0.040
Posterior third (axial)	7.87	[5.46, 10.29]	6.407	*** < 0.001	0.030
Sex (male as reference)	− 3.45	[− 5.79, − 1.11]	− 2.895	**0.004	0.006
Cardiomegaly	7.05	[2.59, 11.51]	3.103	**0.002	0.007
Excluded variables
Cardiac cycle phase				0.348
Reader				0.590
Software package for Volumetry				0.341
Middle third (axial)				0.978
Middle third (coronal)				0.505
Age				0.165

MPA main pulmonary artery, B parameter coefficient, CI confidence interval, t t test
^***p < 0.001; **p < 0.01; Effect size (partial eta square—ζ²)

ISSN: 1471-2342