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Figure 8 Dual helical computed tomography in a patients with a protruding atheroma of the aortic arch with a mobile thrombus, visualized by suprasternal harmonic imaging (Fig. 4), but not by transesophageal echocardiography. (Left) The dashed line demonstrates that the posterior view of the complex plaque from the esophagus (E) (arrow) is obstructed by the origin of the left bronchus (LB) from the trachea (T). The solid line depicts the view from the esophagus after maximum anterior rotation of the transducer before interference with the left bronchus. The angle of freedom limited by the left bronchus does not allow visualization of the aorta at all at the level of the complex plaque. (Right) The sagittal view shows that the complex plaque is readily accessible anteriorly from the suprasternal window.
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