“…15,28,[34][35][36] However, the specificity of CXR abnormalities is only 10-45% and the most common findings, mediastinal widening and loss of clarity in the contour of the aortic arch, are also commonly observed with aortic rather than aortic branch injuries. 19,34 Thus, patients with abnormal CXR and/or a suspicious mechanism of injury will require further investigation. The three most commonly used techniques, which can be used alone or in combination, are TOE, helical CT and arteriography.…”