Table 1.

Systemic blood vessel phase contrast data

	Prone ± SD (mL/min/m2)	Supine ± SD (mL/min/m2)	Percentage change between prone and supine	Exercise ± SD (mL/min/m2)	Percentage change between exercise and supine at rest
AAO	3506 ± 580	3208 ± 500	−9.3 (p = 0.16)	6005 ± 773	85.7 (p < 0.0001)
SVC	1234 ± 279	1106 ± 189	−11.6 (p = 0.10)	1548 ± 336	39.6 (p < 0.0001)
DAO	2524 ± 403	2294 ± 443	−10.0 (p = 0.30)	5027 ± 805	117.7 (p < 0.0001)

Blood flow indexed to body surface area under the three conditions—supine at rest, prone at rest, and supine under exercise

AAO ascending aorta, SVC superior vena cava, DAO mid-thoracic descending aorta