Endovascular Graft Anchoring Different Regions of Ascending Aorta in the Treatment of Ascending Aortic Dissection

Inclusion Criteria: * Aortic dissection diagnosed by CTA; * With indications for endovascular treatment * The luminal graft anchor is required to be located in the ascending aorta. Exclusion Criteria: * Import difficult, such as external iliac artery diameter is less than 6 mm bilateral iliac, artery stenosis distortions; * Patients with severe comorbidities, such as severe myocardial insufficient blood supply, heart failure, arrhythmia, severe renal dysfunction, and severe blood coagulation dysfunction; * Patients with malignant tumor, or other serious illness, life expectancy of less than 1 year； * Puncture local infection and high fever;⑤ within 1 month of the large area; * Contrast media in patients with cerebrovascular accident or digestive tract hemorrhage patients with allergies; * Aortic ulcer or aortic wall hematoma and other atypical dissection.