Multimodality approach to thoracic aortic dissection.

The advantages and disadvantages of three imaging modalities--computed tomography, echocardiography, and magnetic resonance imaging--are reviewed in this chapter. All three modalities have the advantages of cross-sectional and/or multiplanar imaging and low or absent morbidity. Both ultrasonography and magnetic resonance imaging obviate the need for radiation. The ultimate value of magnetic resonance imaging still must await large, statistically significant, comparative studies.