Quantitative magnetic resonance angiography for early identification of in-stent stenosis post-flow diverter aneurysm embolization.

ABSTRACT: BackgroundIn-stentstenosis (ISS) is a recognized complication following flow-diverting stent placement for intracranial aneurysms. Although typically asymptomatic and self-resolving, severe cases may result in ischemic complications. Gold-standard detection relies on invasive digital subtraction angiography (DSA). This study sought to determine whether quantitative magnetic resonance angiography with non-invasive optimal vessel analysis (qMRA NOVA) can accurately identify patients with ISS following flowdiverter placement.MethodsThis retrospective study evaluated 373 patients treated with flow-diverting stents at a single institution between 2017 and 2023. Sixteen patients met the inclusion criteria for DSA-confirmed ISS with matched post-procedure and follow-up NOVA imaging and catheter a

SUBMITTER: Werner C 

PROVIDER: S-EPMC12540359 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature