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Free Content Multimodality Anatomic and Molecular Imaging of Parkinson Disease and Atypical Parkinson Syndromes with MRI, Iodine 123 N-ω-Fluoropropyl-2β-Carbomethoxy-3β-(4-Iodophenyl) Nortropane SPECT (Dopamine Transporter SPECT), Iodine 123 Metaiodobenzylguanidine Cardiac Scintigraphy, and [18F] FDG-PET

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Advances in molecular imaging techniques and the increasing availability of functional imaging are expanding the role of nuclear medicine in neuroradiology. Molecular imaging has a well-established role in the evaluation of extrapyramidal disorders. In this setting, functional assessment can be combined with structural imaging to make a more accurate diagnosis. This is particularly useful in a number of more clinically challenging pathologies. This review discusses the role and context of imaging in extrapyramidal disorders. Structural imaging with MR imaging in combination with iodine 123 N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane SPECT (dopamine transporter SPECT), iodine 123 metaiodobenzylguanidine cardiac scintigraphy, and [18F]FDG-PET can be used to differentiate various underlying disease processes including Parkinson disease, dementia with Lewy bodies, multiple system atrophy, progressive supranuclear palsy, and corticobasal degeneration.

Learning Objective: To assess dopamine transporter studies qualitatively and semiquantitatively and categorize them as having normal, abnormal, or indeterminate findings and to understand the role of MR imaging, iodine 123 metaiodobenzylguanidine cardiac scintigraphy, and [18F] FDG-PET in advancing the differential diagnoses of patients with Parkinson disease and atypical parkinsonian syndrome
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Keywords: 123I-FP-CIT SPECT = iodine 123 N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane SPECT; 123I-MIBG = iodine 123 metaiodobenzylguanidine; AD = Alzheimer disease; APS = atypical parkinsonian syndrome; CBD = corticobasal degeneration; DLB = dementia with Lewy bodies; DaT = dopamine transporter; MSA = multiple system atrophy; PD = Parkinson disease; PSP = progressive supranuclear palsy; SBR = striatal binding ratio

Document Type: Research Article

Publication date: December 1, 2021

More about this publication?
  • Neurographics is the peer-reviewed, bimonthly educational journal of the American Society of Neuroradiology. The journal comprises articles selected from material presented at the ASNR Annual Meeting. Neurographics also publishes other high-quality submissions that are primarily educational and have a high emphasis on a pictorial approach. Neurographics offers CME credit for reading review articles and completing quiz-based self-assessment activities.

    Visit the ASNR Education Connection to view all available CME courses.

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