To evaluate aortic remodeling of Fabulous thoracic aortic stent system in the treatment of acute and subacute Stanford type B aortic dissection (the changes of aortic diameter, cross-sectional area,and volume of true lumen, false lumen and total aorta in different aoritc levels, and false lumen thrombosis in different aoritc levels), and splanchnic artery perfusion.
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Change of diameter
Timeframe: 3 months, 6 months,12 months after operation
Changes of cross-sectional area
Timeframe: 3 months, 6 months,12 months after operation
Volumetric change
Timeframe: 3 months, 6 months,12 months after operation