Although patients with Loeys-Dietz syndrome are at risk of developing aneurysms in all arteries, the base of the aorta closest to the heart is the site at greatest risk, the researchers say.

ANEURYSMS of the thoracic aorta may be of diverse etiology ... a Grade 3/6 harsh ejection murmur heard best at the base, with transmission into the neck, a Grade 3/6 diastolic blowing murmur ...

There are two primary components of impedance: 1) base impedance ... caused by changing blood volume and velocity in the thoracic aorta (Figure 2). Biological tissues such as muscle, bone ...