Table 2. Aortic lumen area at the root, ascending aorta, proximal arch and distal arch.

Aortic segment	Compartment (cm2)	Type I (n=71)	Extended type II (n=37)	P value
Root	Total	16.48±7.65	14.32±0.52	0.1
	True	11.65±4.57	11.62±5.06	0.9
	False	4.83±6.07	2.69±3.09	0.017
Ascending aorta	Total	18.38±6.64	20.95±7.11	0.065
	True	5.94±3.28	10.13±6.04	<0.001
	False	12.43±6.17	10.82±7.42	0.2
Proximal arch	Total	13.17±3.35	15.75±7.37	0.049
	True	5.21±2.39	9.20±4.88	<0.001
	False	7.96±2.88	6.55±4.83	0.1
Distal arch	Total	8.69±2.47	6.71±1.56	<0.001
	True	3.76±1.50	6.22±1.38	<0.001
	False	4.93±1.81	0.49±1.07	<0.001

Continuous data expressed as mean ± standard deviation with comparisons calculated with two-tailed Student’s t-test.