CTICasesAortic Pseudo-dissection
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Imaging findings
The non-gated CT scan demonstrated a linear filling defect at the level of the proximal ascending aorta, which raised initial concerns for an aortic dissection flap. Follow-up imaging using prospective ECG triggering revealed no such abnormality, confirming that the initial appearance was a pulsation artifact.
Key takeaways
Pulsation artifacts in the ascending aorta on non-gated studies can mimic an aortic dissection. If there is clinical doubt, using ECG-gated imaging or repeat imaging with better synchronization can help distinguish artifacts from true pathology.
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