Atypical Parkinsonian Syndromes: Structural, Functional, and Molecular Imaging Features.

Autor:	Keir G; From the Neuroradiology Division (G.K., M.R.), Department of Radiology, Weill Cornell Medical College, NY-Presbyterian Hospital, New York, New York., Roytman M; From the Neuroradiology Division (G.K., M.R.), Department of Radiology, Weill Cornell Medical College, NY-Presbyterian Hospital, New York, New York., Mashriqi F; Neuroradiology Division (F.M., S.S., A.M.F.), Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, New York, New York., Shahsavarani S; Neuroradiology Division (F.M., S.S., A.M.F.), Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, New York, New York., Franceschi AM; Neuroradiology Division (F.M., S.S., A.M.F.), Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, New York, New York afranceschi@northwell.edu.
Jazyk:	angličtina
Zdroj:	AJNR. American journal of neuroradiology [AJNR Am J Neuroradiol] 2024 Aug 29. Date of Electronic Publication: 2024 Aug 29.
DOI:	10.3174/ajnr.A8313
Abstrakt:	Atypical parkinsonian syndromes, also known as Parkinson-plus syndromes, are a heterogeneous group of movement disorders, including dementia with Lewy bodies (DLB), progressive supranuclear palsy (PSP), multisystem atrophy (MSA), and corticobasal degeneration (CBD). This review highlights the characteristic structural, functional, and molecular imaging features of these complex disorders. DLB typically demonstrates parieto-occipital hypometabolism with involvement of the cuneus on FDG-PET, whereas dopaminergic imaging, such as [ 123 I]-FP-CIT SPECT (DaTscan) or fluorodopa (FDOPA)-PET, can be utilized as an adjunct for diagnosis. PSP typically shows midbrain atrophy on structural imaging, whereas FDG-PET may be useful to depict frontal lobe hypometabolism and tau-PET confirms underlying tauopathy. MSA typically demonstrates putaminal or cerebellar atrophy, whereas FDG-PET highlights characteristic nigrostriatal or olivopontocerebellar hypometabolism, respectively. Finally, CBD typically shows asymmetric atrophy in the superior parietal lobules and corpus callosum, whereas FDG and tau-PET demonstrate asymmetric hemispheric and subcortical involvement contralateral to the side of clinical deficits. Additional advanced neuroimaging modalities and techniques described may assist in the diagnostic work-up or are promising areas of emerging research. (© 2024 by American Journal of Neuroradiology.)
Databáze:	MEDLINE
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