Medizinische Universität Graz - Research portal

Go directly to the nagivation.
Go directly to the content.

Navigation/Search

Selected Publication:

SHR Neuro Cancer Cardio Lipid Metab Microb

Apfaltrer, P; Wenz, H; Böhme, J; Gawlitza, M; Groden, C; Alonso, A; Förster, A.
FLAIR Vascular Hyperintensities Indicate Slow Poststenotic Blood Flow in ICA Stenosis.
Clin Neuroradiol. 2021; 31(3): 827-831. Doi: 10.1007/s00062-020-00941-y
Web of Science PubMed FullText FullText_MUG

Leading authors Med Uni Graz: Apfaltrer Paul
Altmetrics:
Dimensions Citations:
Plum Analytics:
Scite (citation analytics):
Abstract:: PURPOSE: Occlusion or significant stenosis of the internal carotid artery (ICA) in the cervical segment is commonly associated with a poststenotic decrease in the downstream blood flow and perfusion. Fluid attenuated inversion recovery (FLAIR) vascular hyperintensities (FVH) are a phenomenon that represents slow arterial blood flow. In this study, we investigated the frequency and extent of FVH in the distal ICA in patients with proximal ICA stenosis. METHODS: We analyzed the magnetic resonance imaging (MRI) findings in 51 patients with a total of 60 cervical ICA stenoses with special focus on the frequency and extent of FVH in the area of the petrous segment of the ICA on FLAIR images and correlated these with Doppler/duplex sonography results. RESULTS: In 46 (76.7%) patients with ICA stenosis, FVH could be detected in the petrous segment of the ICA: in 19 (41.3%) patients a thin hyperintense rim near the vessel wall (grade 1), in 24 (52.2%) patients a strong hyperintense rim near the vessel wall (grade 2), and in 3 (6.5%) patients a hyperintense filling of the entire lumen (grade 3) was observed. The extent of FVH in the ICA in the petrous segment showed a high negative correlation with the poststenotic flow velocity (Spearman correlation, R = -0.75, p < 0.001), and moderate correlation with the degree of ICA stenosis (Spearman correlation, R = 0.51, p< 0.001). CONCLUSION: An FVH in the petrous ICA is commonly seen among patients with steno-occlusive disease in proximal ICA and could therefore be useful to recognize a proximal ICA stenosis even on FLAIR images.
Find related publications in this database (using NLM MeSH Indexing): Carotid Stenosis - diagnostic imaging; Constriction, Pathologic - administration & dosage; Hemodynamics - administration & dosage; Humans - administration & dosage; Magnetic Resonance Angiography - administration & dosage; Magnetic Resonance Imaging - administration & dosage
Find related publications in this database (Keywords): FLAIR vascular hyperintensities; Ischemic stroke; ICA; FVH; Hyperintese vessel sign