Table 1:

Epiaortic ultrasound grading system used at Emory University

Epiaortic ultrasound grade of ascending aorta	Intimal thickness/severity of disease
1	Normal (<2 mm)
2	Mild (2–3 mm)
3	Moderate (3–5 mm)
4	Severe (>5 mm)
5	Mobile plaque, any thickness