Diffusion-weighted imaging–detected ischemic lesions associated with flow-diverting stents in intracranial aneurysms: safety, potential mechanisms, clinical outcome, and concerns

Christina Iosif; Yann Camilleri; Suzana Saleme; François Caire; Catherine Yardin; Sanita Ponomarjova; Marie Paule Boncoeur-Martel; Charbel Mounayer

Diffusion-weighted imaging–detected ischemic lesions associated with flow-diverting stents in intracranial aneurysms: safety, potential mechanisms, clinical outcome, and concerns

Christina Iosif ¹ Yann Camilleri ² Suzana Saleme ² François Caire ³ Catherine Yardin ¹ Sanita Ponomarjova Marie Paule Boncoeur-Martel ^{2, 4} Charbel Mounayer ²

1 ERMA - Equipe de Recherche Médicale Appliquée

2 Service de Neuroradiologie interventionnelle [CHU Limoges]

3 Service de Neurochirurgie [CHU Limoges]

4 NET - Neuroépidémiologie Tropicale

Abstract : It was initially considered safe for flow-diverting stents to cover the ostia of branching vessels during endovascular procedures for the treatment of intracranial aneurysms. As more recent evidence suggests, however, their use is not always free of ischemic concerns in terms of covered arterial ostia. The authors sought to determine the frequency of silent and clinically evident diffusion-weighted imaging (DWI)-detected abnormalities related to stent placement as a means of elucidating potential clinical risks.

Keywords : ACA = anterior cerebral artery AChA = anterior choroidal artery ACoA = anterior communicating artery ARU = aspirin reaction unit DSA = digital subtraction angiography DWI = diffusion-weighted imaging ECA = external carotid artery MCA = middle cerebral artery OKM = O'Kelly and Marotta PCoA = posterior communicating artery PRU = P2Y12 reactivity unit SAH = subarachnoid hemorrhage VA = vertebral artery brain ischemia cICA = cavernous segment of the internal carotid artery diffusion-weighted imaging intracranial aneurysms mRS = modified Rankin Scale stent vascular disorders

Type de document :

Article dans une revue

Domaine :

Sciences du Vivant [q-bio] / Santé publique et épidémiologie

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https://hal-unilim.archives-ouvertes.fr/hal-01646668
Contributeur : Elisabeth Grelier <>
Soumis le : jeudi 23 novembre 2017 - 16:18:56
Dernière modification le : mercredi 28 février 2018 - 17:04:03

Diffusion-weighted imaging–detected ischemic lesions associated with flow-diverting stents in intracranial aneurysms: safety, potential mechanisms, clinical outcome, and concerns

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Diffusion-weighted imaging–detected ischemic lesions associated with flow-diverting stents in intracranial aneurysms: safety, potential mechanisms, clinical outcome, and concerns

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