I‐123 DaTscan SPECT Brain Imaging in Parkinsonian Syndromes: Utility of the Putamen‐to‐Caudate Ratio
Journal of Neuroimaging2018Vol. 28(6), pp. 629–634
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Manuela C. Matesan, Santhosh Gaddikeri, Katelan Longfellow, Robert S. Miyaoka, Saeed Elojeimy, Shana Elman, Shu‐Ching Hu, Satoshi Minoshima, David H. Lewis
Abstract
Although PCR can intrinsically be a useful indication of disease, this ratio obtained in our analysis by using one of the clinically available automatic semiquantitative methods has large variability and might not be a reliable numeric marker in interpretation of [I-123]ioflupane studies. This may be due to difficulty in separating caudate from putamen on SPECT images, as well as the nonuniform decreased Ioflupane uptake in both putamen and caudate.
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