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Fig. 4 | Journal of Cardiovascular Magnetic Resonance

Fig. 4

From: The implications of magnetic resonance angiography artifacts caused by different types of intracranial flow diverters

Fig. 4

Patient with tandem petrocavernous and supraclinoid right internal carotid aneurysms who was treated with a Surpass (cobalt chromium) device for the petrocavernous aneurysm and a Pipeline (cobalt chromium) device for the supraclinoid aneurysm. The patient had 2 tandem, non-intersecting flow diverters placed for 2 tandem aneurysms and met the criteria for inclusion in group 1. The images uniquely demonstrated the difference in signal loss between two different types of adjacent flow diverters. a The native image shows both devices on the lateral view. The native b image of the right carotid angiogram shows small residual aneurysms at both locations. MPR reconstructions of noncontrast MRA C, D do not show either of the aneurysms, there is significant loss of signal in the petrocavernous segment; A loss of signal, to a lesser degree, is also evident in the supraclinoid segment

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