The patient is a 60 year old male with a type III dissection of the aorta. The dissection starts posterior to the left subclavian artery. From the CT scan, one sees that the brachiocephalic trunk, left common carotid artery, left subclavian artery, and both renal arteries originate from the true lumen. Scanning with thick slices (10 mm) is usually necessary in cases of dissecting aneurysms because immediate diagnosis is crucial. Thus it is sometimes difficult to identify the origin of certain vessels. In this particular case, it was not really possible to identify from the CT scan whether the celiac artery originated from the true or false lumen. Furthermore it was difficult to ascertain whether the disection continued into the common iliac arteries due to absence of contrast from scanning delays.
The original trans axial section 47 slice EBCT data set of a patient with a dissecting aortic aneurysm. Omni 350 was the contrast used. The volumetric data acquisition of 10 mm thickness included the aortic arch and common iliac arteries accomplished in two scan runs.
Surface rendered movie of a spiraling dissecting aortic aneurysm. The movie also shows the left subclavian artery, left common carotid artery, brachiocephalic trunk, celiac artery, superior mesenteric artery, renal arteries, common iliac arteries, and the kidneys.
Surface rendered movie in color of a spiraling dissecting aortic aneurysm.The movie also shows the left subclavian artery, left common carotid artery, brachiocephalic trunk, celiac artery, superior mesenteric artery, renal arteries, common iliac arteries, and the kidneys.
