Quantitative magnetic susceptibility imaging sequence for intracranial inflammation in patients with optic neuromyelitis
10.3760/cma.j.cn115455-20221205-01073
- VernacularTitle:定量磁化率成像序列对视神经脊髓炎患者颅内炎性反应的探索
- Author:
Xinli WANG
1
;
Ning FENG
;
Ningning WANG
;
Zhizheng ZHUO
;
Haoxiao CHANG
;
Ai GUO
;
Decai TIAN
;
Xiaodong ZHU
Author Information
1. 天津医科大学总医院影像科，天津 300041
- Keywords:
Neuromyelitis optica;
Intracranial inflammation;
Microglial cell;
Quantitative susceptibility imaging
- From:
Chinese Journal of Postgraduates of Medicine
2023;46(8):679-683
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To identify the potential intracranial inflammation in neuromyelitis optica spectrum disorders(NMOSD) patients without supratentorial MRI lesions using quantitative susceptibility mapping (QSM).Methods:Seventy NMOSD patients and 35 age- and gender-matched healthy controls (NC) underwent QSM, 3D-T 1, diffusion MRI from Beijing Tiantan Hospital during June 2019 to June 2021. Susceptibility was compared among NMOSD patients with acute attack (ANMOSD), NMOSD patients in chronic phase (CNMOSD) and NC. The correlation between susceptibility in several brain regions and the cerebrospinal fluid levels of inflammatory makers were analyzed. Results:NMOSD patients showed different susceptibility in several brain regions including bilateral hippocampus, precuneus, right cuneus, putamen, superior parietal and inferior temporal ( P<0.001) and the posr-hoc showed it is higher than normal. Compared to CNMOSD patients, the ANMOSD patients showed increased susceptibility in the cuneus (0.009 ± 0.004 vs. 0.005 ± 0.004, P<0.05). There was significant positive correlations between susceptibility and CSF levels of sTREM2 which reflect the active of microglial cells ( r = 0.494, P<0.05). Conclusions:Despite the absence of supratentorial lesions on MRI, increased susceptibility suggests underlying inflammation in the cerebral cortex in both patients with ANMOSD and CNMOSD, and some of them are obviously related to inflammatory markers in CSF. QSM sequence can be used to explore the potential inflammation in NMOSD patients without obvious supratentorial lesions.
