MR Biomarkers of Degenerative Brain Disorders Derived From Diffusion Imaging.

MR Biomarkers of Degenerative Brain Disorders Derived From Diffusion Imaging.
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DOI:
10.1002/jmri.27019
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发表时间:
2020-12
期刊:
Journal of magnetic resonance imaging : JMRI
影响因子:
--
通讯作者:
Aoki S
Aoki S
中科院分区:
其他
文献类型:
--
作者:
Andica C;Kamagata K;Hatano T;Saito Y;Ogaki K;Hattori N;Aoki S

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神经退行性疾病的发病率呈上升趋势。这些情况通常会导致进行性功能障碍。神经退行性疾病的生物标志物的鉴定是促进病理特征的早期鉴定和促进对个体疾病的发病机制的更好理解的关键。扩散张量成像(DTI)是最广泛使用的扩散MRI技术,用于评估神经退行性疾病。DTI参数是评价微结构变化的有前途的生物标志物,然而,DTI的一些局限性限制了其更广泛的临床应用。新的弥散MRI技术,如弥散峰度成像(DKI)、双张量DTI和神经突方向密度和弥散成像(NODDI)已被证明可为DTI提供额外价值,用于评价神经退行性疾病。在这篇综述文章中,我们总结了关键技术方面,并概述了DKI、双张量DTI和NODDI作为代表性神经退行性疾病(包括阿尔茨海默病、帕金森病、肌萎缩侧索硬化和亨廷顿病)微结构变化生物标志物的作用的当前知识水平。5 2 J. MAGN. RESON. Imaging 2020;52:1620-1636.
The incidence of neurodegenerative diseases has shown an increasing trend. These conditions typically cause progressive functional disability. Identification of robust biomarkers of neurodegenerative diseases is a key imperative to facilitate early identification of the pathological features and to foster a better understanding of the pathogenetic mechanisms of individual diseases. Diffusion tensor imaging (DTI) is the most widely used diffusion MRI technique for assessment of neurodegenerative diseases. The DTI parameters are promising biomarkers for evaluation of microstructural changes; however, some limitations of DTI restrict its wider clinical use. New diffusion MRI techniques, such as diffusion kurtosis imaging (DKI), bi‐tensor DTI, and neurite orientation density and dispersion imaging (NODDI) have been demonstrated to provide value addition to DTI for evaluation of neurodegenerative diseases. In this review article, we summarize the key technical aspects and provide an overview of the current state of knowledge regarding the role of DKI, bi‐tensor DTI, and NODDI as biomarkers of microstructural changes in representative neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and Huntington's disease. 5 2 J. MAGN. RESON. IMAGING 2020;52:1620–1636.
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