PMC10077976_01
Aortic root dissection. Sagittal (A), coronal (B), and transverse (C) computed tomography showing dissection flap in the aortic root (arrow). Three-dimensional reconstructed computed tomography is provided (D).
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F1
A well-defined dissection flap was noted in the aortic root with no extension into the coronary ostia (Figure 1).
Supra-aortic vessel dissection. Sagittal (A) and transverse (B) computed tomography showing brachiocephalic artery dissection (red arrow) and near complete occlusion of the right common carotid artery (blue arrow) due to thrombosis of the false lumen. Dissection of the right subclavian artery (green arrow) is also seen.
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F2
The dissection extended into the brachiocephalic artery (BCA), right subclavian artery (RSA), and right common carotid artery (RCCA) with high-grade stenosis and near occlusion due to thrombosis of the false lumen but with some residual flow through the true lumen (Figure 2).
Aortic arch dissection. Sagittal (A), coronal (B), and transverse (C) computed tomography showing complex dissection flap at the level of the aortic arch (arrow). Three-dimensional reconstructed computed tomography is provided (D).
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F3
Marked irregularity of the aortic arch was noted with central displacement, narrowed true lumen, and redundancy of the intima (Figure 3).