Author, Classification, Citation	Description
Inspection, palpation:
Landymore [Landymore 1981]
A	Single or multiple atherosclerotic plaques intersposed between areas of normal aorta
B	Generalized degenerative changes of the media
C	Aorta grossly thickened as a result of medical degeneration and calcification
Mills Everson [Mills 1991]
I	"Porcelain aorta", Circumferential calcification
II	"Ragged, friable", may be detected by irregularity of the normally smooth lining of the ascending aorta on the left ventricular angiogram
III	"Liquid intramural disease", Intraluminal liquid debris, pale appearance of the aorta, adherence of the adventita
Ultrasonic assessment
Epiaortic scanning:
Wareing [Wareing 1993]
Mild	Local thickening < 3mm
Moderate	Intimal thickening 3-5mm
Severe	Thickening > 5mm, presence of marked calcification, protruding, mobile atheroma, ulcerated plaque, thrombi, circumferential involvement of all the ascending aorta
Transesophageal Echo:
Ribakove [Ribakove 1992]
I	Minimal intimal thickening
II	Extensive intimal thickening
III	Sessile atheroma
IV	Protruding atheroma
V	Mobile Atheroma

Table 2.

Classifications of AAAS