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Role of Diffusional Kurtosis Imaging in Differentiating Neuromyelitis Optica-Related and Multiple Sclerosis-Related Acute Optic Neuritis: Comparison With Diffusion-Weighted Imaging.

弥散峰度成像在鉴别视神经脊髓炎相关和多发性硬化相关急性视神经炎中的作用: 与弥散加权成像的比较。

  • 影响因子:1.48
  • DOI:10.1097/RCT.0000000000000974
  • 作者列表:"Lu P","Yuan T","Liu X","Tian G","Zhang J","Sha Y
  • 发表时间:2020-01-01
Abstract

PURPOSE:The discrimination between neuromyelitis optica (NMO)- and multiple sclerosis (MS)-related acute optic neuritis (ON) after the first presentation is difficult in clinical practice. Through a comparison with diffusion-weighted imaging using readout-segmented echo-planar imaging (RESOLVE-DWI), our aim was to determine the feasibility of diffusional kurtosis imaging (DKI) for differential diagnosis. MATERIALS AND METHODS:Orbital DKI and RESOLVE-DWI in a 3.0-T scanner were performed on 37 patients with acute ON (15 NMO-related and 22 MS-related). The mean kurtosis (MK), axial kurtosis (AK), radial kurtosis (RK), mean diffusivity (MD), and apparent diffusion coefficient (ADC) were calculated for quantitative analyses, and receiver operating characteristic curve analyses were also performed to determine their abilities to differentiate the 2 conditions. RESULTS:The intraclass correlation coefficients among observers were 0.842, 0.885, 0.828, 0.871, and 0.942 for MK, RK, AK, MD, and ADC, respectively, in the affected nerve group and 0.890, 0.840, 0.832, 0.934, and 0.941 in the unaffected nerve group. Regarding the comparisons of the DKI and RESOLVE-DWI parameters among the groups, the mean MK, RK, AK, MD, and ADC values were significantly lower in the affected groups (all, P < 0.001). Furthermore, the MK, RK, MD, and ADC values were significantly lower in the NMO-ON group than in the MS-ON group (P = 0.001, 0.002, 0.013, and <0.001, respectively), and no significant differences were found in the AK values (P = 0.064). In addition, establishing MK ≤ 0.843 as the diagnostic criterion for NMO-related acute ON provided the highest sensitivity (90.5%), whereas the highest specificity (91.3%) was obtained using RK ≤ 0.784 as the diagnostic criterion. CONCLUSIONS:Diffusional kurtosis imaging is helpful for differentiating NMO-related acute ON from MS-related acute ON, and it can achieve more agreeable sensitivity and specificity than RESOLVE-DWI in differential diagnosis.

摘要

目的: 在临床实践中,首次出现视神经脊髓炎 (NMO) 和多发性硬化 (MS) 相关的急性视神经炎 (ON) 之间的鉴别是困难的。通过与使用读出分段回波平面成像 (RESOLVE-DWI) 的扩散加权成像进行比较,我们的目的是确定扩散峰度成像 (DKI) 用于鉴别诊断疾病的可行性。 材料和方法: 在 3.0 T扫描仪中对 37 例急性on患者 (15 例NMO相关和 22 例MS相关) 进行眼眶DKI和RESOLVE-DWI检查。计算平均峰度 (MK) 、轴向峰度 (AK) 、径向峰度 (RK) 、平均扩散系数 (MD) 和表观扩散系数 (ADC) 进行定量分析,并进行受试者工作特征曲线分析,以确定其区分 2 种条件的能力。 结果: 观察者间MK、RK、AK、MD和ADC的组内相关系数分别为 0.842 、 0.885 、 0.828 、 0.871 和 0.942,受累神经组和未受累神经组分别为 0.890 、 0.840 、 0.832 、 0.934 和 0.941。关于组间DKI和RESOLVE-DWI参数的比较,受累组的平均MK、RK、AK、MD和ADC值显著降低 (均,P <0.001)。此外,NMO-ON组的MK、RK、MD和ADC值显著低于MS-ON组 (P = 0.001 、 0.002 、 0.013,和 <0.001,分别),未发现AK值的显著差异 (P = 0.064)。此外,将MK ≤ 0.843 确定为NMO相关急性ON的诊断标准提供了最高的灵敏度 (90.5%),而最高的特异性 (91.3%) 采用RK ≤ 0.784 作为诊断标准。 结论: 扩散峰度成像有助于鉴别NMO相关的急性ON和MS相关的急性ON,在鉴别诊断疾病方面比RESOLVE-DWI具有更高的敏感性和特异性。

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影响因子:1.52
发表时间:2020-04-02
DOI:10.1080/09273948.2019.1597896
作者列表:["Apivatthakakul A","Kunavisarut P","Rothova A","Pathanapitoon K"]

METHODS::Purpose: To report on ocular Vogt-Koyanagi-Harada (VKH)-like syndrome under vemurafenib treatment for metastatic melanoma.Design: A case report.Method: Description of clinical and imaging manifestations including fundus photography, fluorescein, and indocyanine green angiography.Results: A 46-year-old Thai female was diagnosed with metastatic melanoma of the skin and had been treated with multiple surgical excisions, radiotherapy, and vemurafenib (initial dose 480 mg orally twice daily, subsequently increased to maximum dose of 960 mg twice daily). After 6 months of vemurafenib use, she complained of bilateral redness and photophobia and was diagnosed with bilateral anterior uveitis, which was topically treated. Two weeks later, her visual acuity (VA) sharply deteriorated to 20/80 and counting fingers. Ocular examination at that stage stronly resembled acute VKH disease. She exhibited intraocular inflammation, and her fundus examination revealed bilateral optic disc swelling and serous retinal detachment. Fluorescein angiogram showed disc leakage and multiple pinpoint hyperfluorescence leakage spots and indocyanine green demonstrated multiple hypofluorescent spots. Oral prednisolone 30 mg/day was commenced while vemurafenib medication was ceased. Three weeks later, her vision improved, and serous retinal detachment subsided. However, her cutaneous melanoma recurred.Conclusions: Vemurafenib, a potential adjunct treatment for metastatic melanoma, was complicated by the development of panuveitis, papillitis, and multiple serous detachments. These ocular symptoms were similar to the presentation of acute VKH syndrome.

翻译标题与摘要 下载文献
影响因子:2.19
发表时间:2020-01-01
DOI:10.1111/dmcn.14268
作者列表:["Crow YJ","Shetty J","Livingston JH"]

METHODS::Comprehensive reviews of the clinical characteristics and pathogenesis of Aicardi-Goutières syndrome (AGS), particularly its contextualization within a putative type I interferonopathy framework, already exist. However, recent reports of attempts at treatment suggest that an assessment of the field from a therapeutic perspective is warranted at this time. Here, we briefly summarize the neurological phenotypes associated with mutations in the seven genes so far associated with AGS, rehearse current knowledge of the pathology as it relates to possible treatment approaches, critically appraise the potential utility of therapies, and discuss the challenges in assessing clinical efficacy. WHAT THIS PAPER ADDS: Progress in understanding AGS disease pathogenesis has led to the first attempts at targeted treatment. Further rational therapies are expected to become available in the short- to medium-term.

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翻译标题与摘要 下载文献
影响因子:1.52
发表时间:2020-04-02
DOI:10.1080/09273948.2019.1603312
作者列表:["Takayama K","Obata H","Takeuchi M"]

METHODS::Purpose: To report the efficacy of adalimumab in a case of chronic Vogt-Koyanagi-Harada (VKH) disease refractory to conventional corticosteroids and immunosuppressive therapy and complicated by central serous chorioretinopathy (CSC).Case report: A 66-year-old woman diagnosed with VKH was treated with intravenous corticosteroids followed by oral corticosteroids and cyclosporine. However, systemic corticosteroids could not be tapered because of recurrent ocular inflammation and systemic complications (diabetes mellitus, moon face, bone weakness), while CSC appeared in both eyes. A diagnosis of chronic VKH resistant to medications complicated by corticosteroid-induced CSC was made. Systemic corticosteroids and cyclosporine were tapered and adalimumab initiated. Bilateral ocular inflammation and CSC were gradually reduced and visual acuity improved without any adverse effect. Twelve months after starting adalimumab monotherapy, no signs of active VKH and CSC were present.Conclusions: Adalimumab is one of the effective therapeutic options for refractory VKH disease complicated with corticosteroid-induced adverse effects.

神经系统自身免疫性疾病方向

神经系统自身免疫性疾病是以自身免疫细胞、免疫分子等攻击神经系统为主要致病机制的自身免疫性疾病。在免疫反应中,作用于神经系统自身抗原的致病抗体统称为神经系统自身抗体。

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