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Figure 2 (A–F) Transesophageal magnetic resonance images in humans. (A,B) Descending thoracic aortae. (A) normal 33-year-old man and (B) 57-year-old woman with recent transient ischemic attack demonstrating diffuse and homogeneous thickening. (C,D) Distal aortic arch, 77-year-old man with remote stroke, showing heterogeneous (arrows) atherosclerotic thickening consistent with intraplaque calcification or hemorrhage. (C) Transesophageal magnetic resonance imaging (TEMRI) (repetition time/echo delay time [TR/TE] 1690/15 ms) and (D) corresponding transesophageal echocardiography (TEE). (E) Normal 33-year-old man. 10-mm-thick sagittal slice through the arch and descending thoracic aorta illustrating the longitudinal imaging range of the device (scout images, fast gradient echo [FGRE] sequence). (F) Bland-Altman plot of difference between circumferential extent of abnormal wall thickening assessed by TEE (a) and TEMRI (b). Each point represents an individual study patient. The underestimation by TEE is significant by paired t test (p = 0.001). Ao = aorta; De = device.
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