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Insights into Imaging
Fig. 16 | Insights into Imaging

Fig. 16

From: Contrast opacification on thoracic CT angiography: challenges and solutions

Fig. 16

Mixing artifacts in the true lumen of the descending aortic aneurysm with Type B aortic dissection which resolve on delayed phase acquisition. Axial CECT (a) shows a type B dissection with mixing of contrast in the true lumen (arrow). Delayed phase CECT in the same patient (b) shows resolution of the mixing artifact. Note the complete nonopacification of false lumen. This phase allows more accurate estimation of the extent of the false lumen thrombus and slow flow

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