Portable, low-field magnetic resonance imaging enables highly accessible and dynamic bedside evaluation of ischemic stroke.
Journal
Science advances
ISSN: 2375-2548
Titre abrégé: Sci Adv
Pays: United States
ID NLM: 101653440
Informations de publication
Date de publication:
22 Apr 2022
22 Apr 2022
Historique:
entrez:
20
4
2022
pubmed:
21
4
2022
medline:
21
4
2022
Statut:
ppublish
Résumé
Brain imaging is essential to the clinical management of patients with ischemic stroke. Timely and accessible neuroimaging, however, can be limited in clinical stroke pathways. Here, portable magnetic resonance imaging (pMRI) acquired at very low magnetic field strength (0.064 T) is used to obtain actionable bedside neuroimaging for 50 confirmed patients with ischemic stroke. Low-field pMRI detected infarcts in 45 (90%) patients across cortical, subcortical, and cerebellar structures. Lesions as small as 4 mm were captured. Infarcts appeared as hyperintense regions on T2-weighted, fluid-attenuated inversion recovery and diffusion-weighted imaging sequences. Stroke volume measurements were consistent across pMRI sequences and between low-field pMRI and conventional high-field MRI studies. Low-field pMRI stroke volumes significantly correlated with stroke severity and functional outcome at discharge. These results validate the use of low-field pMRI to obtain clinically useful imaging of stroke, setting the stage for use in resource-limited environments.
Identifiants
pubmed: 35442729
doi: 10.1126/sciadv.abm3952
pmc: PMC9020661
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
eabm3952Subventions
Organisme : NINR NIH HHS
ID : R01 NR018335
Pays : United States
Organisme : NINDS NIH HHS
ID : U24 NS107136
Pays : United States
Organisme : NINDS NIH HHS
ID : R03 NS112859
Pays : United States
Organisme : NINDS NIH HHS
ID : U24 NS107215
Pays : United States
Organisme : NINDS NIH HHS
ID : U01 NS106513
Pays : United States
Organisme : NINDS NIH HHS
ID : R01 NS110721
Pays : United States
Organisme : NIBIB NIH HHS
ID : R01 EB031114
Pays : United States
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