Table 1. Comparisons of Change in Right Pulmonary Vascular Volume Percentage Measured with CT between Groups.

	Group 1A	Group 1B	Group 2
Change in right pulmonary vascular volume percentage between serial CT examinations	11.6 ± 5.6%	2.7 ± 1.6%	1.9 ± 1.4%
Statistical comparison with group 1A using unpaired t test	N/A	p < 0.003	p < 0.002

CT = computed tomography, N/A = not applicable