Neuroimaging in Lewy body dementia.

Neuroimaging in Lewy body dementia.
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DOI:
10.1007/s00415-018-8892-x
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发表时间:
2019-01
影响因子:
6
通讯作者:
Politis M
Politis M
中科院分区:
医学2区
文献类型:
--
作者:
Yousaf T;Dervenoulas G;Valkimadi PE;Politis M

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路易体痴呆(Lewy body dementia,DLB)是一种常见的认知障碍,占65岁以上痴呆病例的30%。DLB的早期诊断一直具有挑战性;特别是在与帕金森病痴呆和其他形式的痴呆(例如阿尔茨海默病和快速进行性痴呆)区分的背景下。目前的实践涉及使用[123 I]FP-CIT-SPECT、[18 F]FDG PET和[123 I]MIBG分子成像来支持诊断程序。结构成像技术对于排除结构性原因(可能导致DLB样表型)以及通过说明萎缩的疾病特异性模式来辅助鉴别诊断具有重要作用。新的PET分子成像模式,如淀粉样蛋白和tau成像,可以提供进一步的见解DLB的病理生理学,并可能有助于早期诊断。一个多模式的方法,通过结合各种既定的技术,并可能使用新的放射性配体,可能会进一步帮助深入了解这种高度致残性疾病。在这篇综述中,我们将提供一个概述神经影像学应用于DLB患者。
Lewy body dementia (DLB) is a common form of cognitive impairment, accounting for 30% of dementia cases in ages over 65 years. Early diagnosis of DLB has been challenging; particularly in the context of differentiation with Parkinson’s disease dementia and other forms of dementias, such as Alzheimer’s disease and rapidly progressive dementias. Current practice involves the use of [123I]FP-CIT-SPECT, [18F]FDG PET and [123I]MIBG molecular imaging to support diagnostic procedures. Structural imaging techniques have an essential role for excluding structural causes, which could lead to a DLB-like phenotype, as well as aiding differential diagnosis through illustrating disease-specific patterns of atrophy. Novel PET molecular imaging modalities, such as amyloid and tau imaging, may provide further insights into DLB pathophysiology and may aid in early diagnosis. A multimodal approach, through combining various established techniques and possibly using novel radioligands, might further aid towards an in-depth understanding of this highly disabling disease. In this review, we will provide an overview of neuroimaging applications in patients with DLB.
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