Sleep disturbance and excessive daytime somnolence (EDS) are features of Parkinson’s disease (PD) and dementia with Lewy bodies (DLB) that may be influenced by dopamine replacement therapy. The effect of levodopa on sleep and EDS in DLB is unknown and unclear in PD. The aim of this study is to determine if levodopa treatment alters […]
We examined (99m)Tc-exametazime brain blood flow single-photon emission computed tomography (SPECT) images using a spatial covariance analysis (SCA) approach to assess its diagnostic value in distinguishing dementia with Lewy bodies (DLB) from Alzheimer’s disease (AD). Voxel SCA was simultaneously applied to a set of preprocessed images (AD, n=40; DLB, n=26), generating a series of eigenimages […]