11. In some cases, a human aortic valve can be implanted. 12. Ritter died from an aortic dissection on September 11, 2003. 13. Several different classification systems have been used to describe aortic dissections. 14. Less than 3 % of abdominal aortic aneurysms are mycotic aneurysms. 15. Medical examinations discovered serious aortic calcification and some coronary artery disease. 16. This sign can be used to differentiate HCM from aortic stenosis. 17. Aortic coarctation and aortic stenosis are both forms of aortic narrowing.18. Aortic coarctation and aortic stenosis are both forms of aortic narrowing. 19. Aortic coarctation and aortic stenosis are both forms of aortic narrowing. 20. KondM died of Aortic dissection alternately aneurysm in 1998.