Optimizing the Diagnosis of Parkinsonian Syndromes With <sup>123</sup>I-Ioflupane Brain SPECT.

Banks, Kevin P; Peacock, Justin G; Clemenshaw, Michael N; Kuo, Phillip H · AJR Am J Roentgenol · 2019

review · Level V

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Abstract

<b>OBJECTIVE.</b> The purpose of this article is to provide a review of <sup>123</sup>I-ioflupane SPECT in the evaluation of suspected parkinsonian syndromes (PSs). This collection of diseases presents frequent diagnostic challenges, even by movement disorder and dementia specialists. <b>CONCLUSION.</b> The <sup>123</sup>I-ioflupane scan serves as an imaging biomarker of the status of presynaptic dopamine transporters (DATs) in the striatum. As a result of neuronal death, DATs are greatly reduced in patients with PS neurodegenerative disorders, whereas clinical mimics generally do not show striatal DAT loss. This provides a tremendous opportunity for <sup>123</sup>I-ioflupane to aid in the accurate and timely diagnosis of these patients and optimize their management.

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