Research Article

Semiautomatic Volumetry of Low Attenuation of Thoracic Aortic Plaques on Curved Planar Reformations Using MDCT Angiographic Data with 0.5 mm Collimation

Figure 2

Cross-section MPR image of the descending thoracic aorta in a 70-year-old man with AAA, severe CAD, and long-term hypertension. A 6 mm thick plaque (black arrow) with mixed codes of the light green (30~69 HU), dark green (70~150 HU), and orange (0~29 HU) inside the circle indicating the normal interior of the aorta. Note the orange code indication of the low attenuation in the wall (white arrows).