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Chen X, Roberts N, Zheng Q, Peng Y, Han Y, Luo Q, Feng J, Luo T, Li Y. Comparison of diffusion tensor imaging (DTI) tissue characterization parameters in white matter tracts of patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD). Eur Radiol 2024; 34:5263-5275. [PMID: 38175221 DOI: 10.1007/s00330-023-10550-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/25/2023] [Accepted: 11/11/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVE To investigate the microstructural properties of T2 lesion and normal-appearing white matter (NAWM) in 20 white matter tracts between multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) and correlations between the tissue damage and clinical variables. METHODS The white matter (WM) compartment of the brain was segmented for 56 healthy controls (HC), 48 patients with MS, and 38 patients with NMOSD, and for the patients further subdivided into T2 lesion and NAWM. Subsequently, the diffusion tensor imaging (DTI) tissue characterization parameters of fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were compared for 20 principal white matter tracts. The correlation between tissue damage and clinical variables was also investigated. RESULTS The higher T2 lesion volumes of 14 fibers were shown in MS compared to NMOSD. MS showed more microstructure damage in 13 fibers of T2 lesion, but similar microstructure in seven fibers compared to NMOSD. MS and NMOSD had microstructure damage of NAWM in 20 fibers compared to WM in HC, with more damage in 20 fibers in MS compared to NMOSD. MS patients showed higher correlation between the microstructure of T2 lesion areas and NAWM. The T2 lesion microstructure damage was correlated with duration and impaired cognition in MS. CONCLUSIONS Patients with MS and NMOSD show different patterns of microstructural damage in T2 lesion and NAWM areas. The prolonged disease course of MS may aggravate the microstructural damage, and the degree of microstructural damage is further related to cognitive impairment. CLINICAL RELEVANCE STATEMENT Microstructure differences between T2 lesion areas and normal-appearing white matter help distinguish multiple sclerosis and neuromyelitis optica spectrum disorder. In multiple sclerosis, lesions rather than normal-appearing white matter should be a concern, because the degree of lesion severity correlated both with normal-appearing white matter damage and cognitive impairment. KEY POINTS • Multiple sclerosis and neuromyelitis optica spectrum disorder have different damage patterns in T2 lesion and normal-appearing white matter areas. • The microstructure damage of normal-appearing white matter is correlated with the microstructure of T2 lesion in multiple sclerosis and neuromyelitis optica spectrum disorder. • The microstructure damage of T2 lesion in multiple sclerosis is correlated with duration and cognitive impairment.
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Affiliation(s)
- Xiaoya Chen
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Neil Roberts
- Edinburgh Imaging Facility QMRI, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Qiao Zheng
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yuling Peng
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yongliang Han
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Qi Luo
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Jinzhou Feng
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Tianyou Luo
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Yongmei Li
- Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Liu C, Shi M, Zhu M, Chu F, Jin T, Zhu J. Comparisons of clinical phenotype, radiological and laboratory features, and therapy of neuromyelitis optica spectrum disorder by regions: update and challenges. Autoimmun Rev 2021; 21:102921. [PMID: 34384938 DOI: 10.1016/j.autrev.2021.102921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/08/2021] [Indexed: 11/26/2022]
Abstract
Neuromyelitis optica spectrum disorder (NMOSD) is an inflammatory demyelinating disease of the central nervous system (CNS) associated with autoantibody (ab) to aquaporin-4 (AQP4). There is obvious variation between regions and countries in the epidemiology, clinical features and management in NMOSD. Based on published population-based observation and cohort studies, the different clinical pattern of NMOSD has been seen in several geographical regions and some of these patients with NMOSD-like features do not fully meet the current diagnostic criteria, which is needed to consider the value of recently revised diagnostic criteria. At present, all treatments applied in NMOSD have made great progress, however, these treatments failed in AQP4 ab negative and refractory patients. Therefore, it is necessary to turn into an innovative idea and to open a new era of NMOSD treatment to develop novel and diverse targets and effective therapeutic drugs in NMOSD and to conduct the trails in large clinical samples and case-control studies to confirm their therapeutic effects on NMOSD in the future, which still remain a challenge.
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Affiliation(s)
- Caiyun Liu
- Neuroscience Center, Department of Neurology, The First Hospital of Jilin University, Changchun, China.
| | - Mingchao Shi
- Neuroscience Center, Department of Neurology, The First Hospital of Jilin University, Changchun, China.
| | - Mingqin Zhu
- Neuroscience Center, Department of Neurology, The First Hospital of Jilin University, Changchun, China.
| | - Fengna Chu
- Neuroscience Center, Department of Neurology, The First Hospital of Jilin University, Changchun, China.
| | - Tao Jin
- Neuroscience Center, Department of Neurology, The First Hospital of Jilin University, Changchun, China.
| | - Jie Zhu
- Neuroscience Center, Department of Neurology, The First Hospital of Jilin University, Changchun, China; Department of Neurobiology, Care Sciences & Society, Division of Neurogeriatrcs, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden.
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Clarke L, Arnett S, Lilley K, Liao J, Bhuta S, Broadley SA. Magnetic resonance imaging in neuromyelitis optica spectrum disorder. Clin Exp Immunol 2021; 206:251-265. [PMID: 34080180 DOI: 10.1111/cei.13630] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 12/30/2022] Open
Abstract
Neuromyelitis optica spectrum disorder (NMOSD) is an inflammatory disease of the central nervous system (CNS) associated with antibodies to aquaporin-4 (AQP4), which has distinct clinical, radiological and pathological features, but also has some overlap with multiple sclerosis and myelin oligodendrocyte glycoprotein (MOG) antibody associated disease. Early recognition of NMOSD is important because of differing responses to both acute and preventive therapy. Magnetic resonance (MR) imaging has proved essential in this process. Key MR imaging clues to the diagnosis of NMOSD are longitudinally extensive lesions of the optic nerve (more than half the length) and spinal cord (three or more vertebral segments), bilateral optic nerve lesions and lesions of the optic chiasm, area postrema, floor of the IV ventricle, periaqueductal grey matter, hypothalamus and walls of the III ventricle. Other NMOSD-specific lesions are denoted by their unique morphology: heterogeneous lesions of the corpus callosum, 'cloud-like' gadolinium (Gd)-enhancing white matter lesions and 'bright spotty' lesions of the spinal cord. Other lesions described in NMOSD, including linear periventricular peri-ependymal lesions and patch subcortical white matter lesions, may be less specific. The use of advanced MR imaging techniques is yielding further useful information regarding focal degeneration of the thalamus and optic radiation in NMOSD and suggests that paramagnetic rim patterns and changes in normal appearing white matter are specific to MS. MR imaging is crucial in the early recognition of NMOSD and in directing testing for AQP4 antibodies and guiding immediate acute treatment decisions. Increasingly, MR imaging is playing a role in diagnosing seronegative cases of NMOSD.
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Affiliation(s)
- Laura Clarke
- Menzies Health Institute Queensland, Gold Coast Campus, Griffith University, Nathan, QLD, Australia.,Department of Neurology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Simon Arnett
- Menzies Health Institute Queensland, Gold Coast Campus, Griffith University, Nathan, QLD, Australia.,Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia
| | - Kate Lilley
- Menzies Health Institute Queensland, Gold Coast Campus, Griffith University, Nathan, QLD, Australia.,Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia
| | - Jacky Liao
- Menzies Health Institute Queensland, Gold Coast Campus, Griffith University, Nathan, QLD, Australia
| | - Sandeep Bhuta
- Menzies Health Institute Queensland, Gold Coast Campus, Griffith University, Nathan, QLD, Australia.,Department of Radiology, Gold Coast University Hospital, Southport, QLD, Australia
| | - Simon A Broadley
- Menzies Health Institute Queensland, Gold Coast Campus, Griffith University, Nathan, QLD, Australia.,Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia
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Murphy OC, Mukharesh L, Salazar-Camelo A, Pardo CA, Newsome SD. Early factors associated with later conversion to multiple sclerosis in patients presenting with isolated myelitis. J Neurol Neurosurg Psychiatry 2021; 92:jnnp-2020-325274. [PMID: 33687973 DOI: 10.1136/jnnp-2020-325274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To identify early clinical and paraclinical factors that may help predict later conversion to multiple sclerosis (MS) in patients presenting with isolated myelitis (ie, 'transverse myelitis' without clinical or radiological evidence of inflammation/demyelination elsewhere in the central nervous system). METHODS In this retrospective cohort study, we included patients with isolated myelitis who were followed clinically and radiologically at our specialised myelopathy clinic. We excluded patients with MS at the onset, aquaporin-4-IgG seropositivity, myelin oligodendrocyte glycoprotein-IgG seropositivity or other identified aetiology. Logistic regression was used to identify factors predictive of conversion to MS (defined by the 2017 McDonald criteria). RESULTS We included 100 patients, followed for a median of 4.3 years. Conversion to MS occurred in 25 of 77 patients (32%) with short-segment myelitis (longest lesion spanning <3 vertebral segments on MRI) as compared with 0 of 23 patients (0%) with longitudinally extensive myelitis (p=0.002). Among patients with short-segment myelitis, factors identified as highly predictive of conversion to MS using multivariate logistic regression included cerebrospinal fluid (CSF)-restricted oligoclonal bands (OCB) (OR (OR) 9.2, 95% CI 2.1 to 41.0, p=0.004), younger age (OR 1.1 for each year younger, 95% CI 1.0 to 1.1, p=0.04) and longer follow-up (OR 1.3 for each year longer, 95% CI 1.0 to 1.6, p=0.04). Conversion to MS occurred at a median of 2.8 years after myelitis onset. CONCLUSIONS Short-segment MRI cord lesion(s), CSF-restricted OCB, younger age and longer follow-up are all factors predictive of conversion to MS in patients presenting with isolated myelitis.
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Affiliation(s)
- Olwen C Murphy
- Johns Hopkins Myelitis and Myelopathy Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
- Johns Hopkins Multiple Sclerosis Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Loulwah Mukharesh
- Johns Hopkins Multiple Sclerosis Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Andrea Salazar-Camelo
- Johns Hopkins Myelitis and Myelopathy Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Carlos A Pardo
- Johns Hopkins Myelitis and Myelopathy Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
- Johns Hopkins Multiple Sclerosis Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Scott D Newsome
- Johns Hopkins Myelitis and Myelopathy Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
- Johns Hopkins Multiple Sclerosis Center, Department of Neurology, Johns Hopkins Hospital, Baltimore, MD, USA
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