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DOI: 10.1148/radiol.2311021776
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Periaortic Hematoma at Diaphragmatic Crura at Helical CT: Sign of Blunt Aortic Injury in Patients with Mediastinal Hematoma1

Humberto Wong, MD, Michael B. Gotway, MD, A. Daniel Sasson, MD and R. Brooke Jeffrey, MD

1 From the Department of Radiology, Stanford University Medical Center, Stanford, Calif (H.W., A.D.S., R.B.J.); and Department of Radiology, San Francisco General Hospital, University of California, San Francisco, 1001 Potrero Ave, 1x55A Box 1325, San Francisco, CA 94110 (M.B.G.). From the 2002 RSNA scientific assembly. Received December 31, 2002; revision requested March 10, 2003; final revision received June 29; accepted August 18. Address correspondence to M.B.G. (e-mail: michael.gotway@radiology.ucsf.edu).



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  		Figure 1. Transverse contrast-enhanced CT scan (window width, 440 HU; level, 40 HU) obtained in 43-year-old man with ATAI after pedestrian versus motor vehicle collision. Image shows PH (arrow) at level of diaphragmatic crura as area of increased attenuation surrounding the aorta.

 


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  		Figure 2a. (a) Transverse contrast-enhanced CT scan (window width, 440 HU; level, 40 HU) obtained in 50-year-old woman with ATAI after motor vehicle collision. Image shows PH (arrow) near level of diaphragmatic crura as area of increased attenuation surrounding circumference of the aorta. (b) Left anterior oblique conventional angiographic image confirms the presence of traumatic aortic pseudoaneurysm (arrow) at aortic isthmus.

 


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  		Figure 2b. (a) Transverse contrast-enhanced CT scan (window width, 440 HU; level, 40 HU) obtained in 50-year-old woman with ATAI after motor vehicle collision. Image shows PH (arrow) near level of diaphragmatic crura as area of increased attenuation surrounding circumference of the aorta. (b) Left anterior oblique conventional angiographic image confirms the presence of traumatic aortic pseudoaneurysm (arrow) at aortic isthmus.

 




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