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. Author manuscript; available in PMC: 2023 Dec 13.
Published in final edited form as: Circulation. 2022 Nov 2;146(24):e334–e482. doi: 10.1161/CIR.0000000000001106

Table 23.

Plain Chest X-Ray Suggestive of Aortic Dissection2

Signs of Aortic Dissection on Chest X-Ray Findings
Mediastinal widening
Disruption of the normally distinct contour of the aortic knob
”Calcium sign,” which appears as a separation of the intimal calcification from the aortic wall of >5 mm
Double density appearance within the aorta
Tracheal deviation to the right
Deviation of the nasogastric tube to the right

Reprinted with permission from Strayer et al.2