Article Dans Une Revue Journal de Neuroradiologie / Journal of Neuroradiology Année : 2025

Imaging follow-up of unruptured intracranial aneurysms treated with flow diverter: Insights from a French collaborative survey

1 Service de Radiologie [CHU Rouen]
2 CHU de Poitiers [La Milétrie] - Centre hospitalier universitaire de Poitiers = Poitiers University Hospital
3 APHM, Department of diagnostic and interventional Neuroradiology, Timone 2
4 LIIE - Laboratoire d'Imagerie Interventionnelle Expérimentale
5 IADI - Imagerie Adaptative Diagnostique et Interventionnelle
6 Département de neuroradiologie diagnostique et thérapeutique [CHRU Nancy]
7 NEURO - Laboratoire de Neurosciences Intégratives et Cliniques - UFC (UR 481)
8 Service de neuroradiologie [CHRU Tours]
9 HIA - Hopital d'instruction des armées Sainte-Anne [Toulon]
10 Clinique des cèdres - Ramsay Santé
11 Hôpital Henri Mondor
12 iPLESP - Institut Pierre Louis d'Epidémiologie et de Santé Publique
13 Service de Neuroradiologie [CHU Lariboisière]
14 GHU AP-HP Nord - Université Paris Cité
15 CHU Angers - Centre Hospitalier Universitaire d'Angers
16 Hôpital Pellegrin
17 CHU Clermont-Ferrand
18 CHU Toulouse - Centre Hospitalier Universitaire de Toulouse
19 Service de Neuroradiologie [Rennes]
20 Département de Neuroradiologie [Strasbourg]
21 CHU Nantes - Centre Hospitalier Universitaire de Nantes = Nantes University Hospital
22 NuMeCan - Nutrition, Métabolismes et Cancer
23 CHU Charles Foix [AP-HP]
24 Departement de Neuroradiologie [Lille]
25 Service de Radiologie et Imagerie Médicale [CHU Limoges]
26 Service de Neuroradiologie interventionnelle [CHU Limoges]
27 XLIM-BIO-SANTÉ - BIO-SANTÉ
28 TIMONE - Hôpital de la Timone [CHU - APHM]
Jean Darcourt
Luca Scarcia
Gaultier Marnat
Géraud Forestier
Quentin Alias
Emmanuel Gerardin

Résumé

Purpose The absence of standardized guidelines for imaging follow-up of unruptured intracranial aneurysms treated with flow diverters (FD) results in significant variability across centers. This survey aims to provide a comprehensive overview of current imaging follow-up practices in French academic centers. Methods In April 2024, a 49-question survey was distributed to interventional neuroradiology centers in France through the trainee-led research collaborative network, Jeunes En Neuroradiologie Interventionnelle-Research Collaborative (JENI-RC). The survey covered follow-up protocols for digital subtraction angiography (DSA), magnetic resonance imaging (MRI), and computed tomography (CT), as well as potential modifications for specific cases. Results Twenty interventional neuroradiology centers responded to the survey. Most centers (n = 14, 70 %), conducted a single systematic DSA either at 6 or 12 months post-procedure. In most centers (n = 13, 65 %), a second DSA was scheduled only based on the results of the first, specifically in cases of non-occluded aneurysm, intimal hyperplasia, or in-stent stenosis. MRI follow-up varied, with most centers (n = 12, 60 %) performing three MRIs over five years. Only two centers included CT scans in their protocols. Conclusion This survey highlights the substantial heterogeneity in imaging follow-up protocols for FD-treated unruptured intracranial aneurysms among French academic centers. The findings underscore the urgent need for standardized guidelines to harmonize practices, optimize patient outcomes, and improve resource utilization. Additionally, innovations in FD technology, advancements in MRI sequences, and the advent of photon-counting CT will likely influence follow-up practices in the near future.

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hal-05043915 , version 1 (13-06-2025)

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Thomas Marque, Victor Dumas, Thibault Agripnidis, François Zhu, Guillaume Charbonnier, et al.. Imaging follow-up of unruptured intracranial aneurysms treated with flow diverter: Insights from a French collaborative survey. Journal de Neuroradiologie / Journal of Neuroradiology, 2025, 52 (3), pp.101338. ⟨10.1016/j.neurad.2025.101338⟩. ⟨hal-05043915⟩
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