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Figure 4 Descending thoracic aorta in a male cadaver with diffuse aortic atherosclerosis. (A) transesophageal echocardiography (TEE) (7 MHz) and (B) transesophageal magnetic resonance imaging (12-cm field of view, TR 1600 ms, TE 25 ms, 3-mm-slice thickness, 1 NEX, ETL 24) and (C) histopathology. The TEE fails to image the entire aortic cross section as demonstrated by the arrows in the three panels. Small arrows indicate the same blood vessel as well as other morphologic landmarks, confirming accuracy of the cross-registration protocol. Es = esophagus, T = tip of vitamin E-filled balloon for registration purposes.