Academic Journal
Chronic active lesions preferentially localize in watershed territories in multiple sclerosis
| العنوان: | Chronic active lesions preferentially localize in watershed territories in multiple sclerosis |
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| المؤلفون: | Ahmad A. Toubasi, Jarrod J. Eisma, Jiacheng Wang, Habeeb F. Kazimuddin, Bryan Hernandez, Taegan Vinarsky, Caroline Gheen, Zachary Rohm, Carynn Koch, Margareta A. Clarke, Rachael Cheek, John Kramer, James Eaton, Manus J. Donahue, Francesca Bagnato |
| المصدر: | Annals of Clinical and Translational Neurology, Vol 11, Iss 11, Pp 2912-2922 (2024) |
| بيانات النشر: | Wiley, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Neurosciences. Biological psychiatry. Neuropsychiatry LCC:Neurology. Diseases of the nervous system |
| مصطلحات موضوعية: | Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571, Neurology. Diseases of the nervous system, RC346-429 |
| الوصف: | Abstract Objective Paramagnetic rim lesions (PRLs) are a biomarker of chronic active lesions (CALs), and an important driver of neurological disability in multiple sclerosis (MS). The reason subtending some acute lesions evolvement into CALs is not known. Here we ask whether a relatively lower oxygen content is linked to CALs. Methods In this prospective cross‐sectional study, 64 people with multiple sclerosis (PwMS), clinically isolated syndrome and radiologically isolated syndrome underwent a 7.0 Tesla (7 T) brain magnetic resonance imaging (MRI). The scanning protocol included a T2‐w fluid‐attenuated inversion recovery (FLAIR), and a single echo gradient echo from which susceptibility‐weighted imaging (SWI) was derived. WM lesions were identified on the T2‐w‐FLAIR whilst PRLs were identified on the SWI sequence. T2‐lesions were classified as PRLs and rimless lesions (PRLs‐). We registered a universal vascular atlas to each subject's T2‐w‐FLAIR and classified each T2‐lesions according to its location into watershed‐ (ws), non‐watershed‐ (nws), and mixed‐lesion (m). Ws‐lesions were defined as lesions that were fully located in a region between the territories of two major arteries. Results Out of 1,975 T2‐lesions, 88 (4.5%) were PRLs. Ws‐regions had a higher number (p = 0.005) and proportion (p |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2328-9503 |
| Relation: | https://doaj.org/toc/2328-9503 |
| DOI: | 10.1002/acn3.52202 |
| URL الوصول: | https://doaj.org/article/9f56998f082644d2a6ba15a2aaea67eb |
| رقم الانضمام: | edsdoj.9f56998f082644d2a6ba15a2aaea67eb |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 23289503 |
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| DOI: | 10.1002/acn3.52202 |