The current dataset aims to support and enhance the research reliability of neuromelanin regions in the brainstem, such as locus coeruleus (LC), by offering raw neuromelanin-sensitive images. The dataset includes raw neuromelanin-sensitive images from 157 healthy individuals (8-64 years old). In addition, leveraging individual neuromelanin-sensitive images, a non-linear neuromelanin-sensitive atlas, generated through an iterative warping process, is included to tackle the common challenge of a limited field of view in neuromelanin-sensitive images. Finally, the dataset encompasses a probabilistic LC atlas generated through a majority voting approach with pre-existing multiple atlas-based segmentations. This process entails warping pre-existing atlases onto individual spaces and identifying voxels with a majority consensus of over 50 % across the atlases. This LC probabilistic atlas can minimize uncertainty variance associated with choosing a specific single atlas.
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http://dx.doi.org/10.1016/j.dib.2024.110140 | DOI Listing |
CNS Neurosci Ther
January 2025
Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Objective: Our aim was to research the neuromelanin-sensitive magnetic resonance imaging (NM-MRI) features of the locus coeruleus (LC) in essential tremor (ET) patients of various cognitive states and to explore the relationships between these features and cognition.
Methods: We recruited three groups of participants, including 30 ET patients with mild cognitive impairment (ET-MCI), 57 ET patients with normal cognition (ET-NC), and 105 healthy controls (HCs). All participants underwent MRI scanning and clinical evaluation.
Eur J Neurol
January 2025
Institut du Cerveau-Paris Brain Institute ICM, Sorbonne Université, Inserm 1127, CNRS 7225, Hôpital de la Pitié Salpêtrière Paris, Paris, France.
Objective: Spinocerebellar ataxias (SCA) are neurodegenerative diseases with widespread lesions across the central nervous system. Ataxia and spasticity are usually predominant, but patients may also present with parkinsonism. We aimed to characterize substantia nigra pars compacta (SNc) degeneration in SCA2 and 7 using neuromelanin-sensitive imaging.
View Article and Find Full Text PDFMov Disord
November 2024
Applied Neuroscience Research Group, Central European Institute of Technology, CEITEC, Masaryk University, Brno, Czech Republic.
Background: Although neuromelanin-sensitive magnetic resonance imaging (NM-MRI) has been used to evaluate early neurodegeneration in Parkinson's disease, studies concentrating on the locus coeruleus (LC) in pre-dementia stages of dementia with Lewy bodies (DLB) are lacking.
Objectives: The aims were to evaluate NM-MRI signal changes in the LC in patients with mild cognitive impairment with Lewy bodies (MCI-LB) compared to healthy controls (HC) and to identify the cognitive correlates of the changes. We also aimed to test the hypothesis of a caudal-rostral α-synuclein pathology spread using NM-MRI of the different LC subparts.
Brain Imaging Behav
October 2024
Department of Radiology, Huashan Hospital, Fudan University, No.12 Wulumuqi Road (Middle), Shanghai, 200040, China.
Am J Psychiatry
November 2024
Renaissance School of Medicine (Perlman, Moeller, Kotov, Weinstein, Abi-Dargham) and Department of Psychology (Klein), Stony Brook University, Stony Brook, New York; Department of Psychiatry, Columbia University, New York (Wengler, Weinstein, Horga); and Division of Translational Imaging, New York State Psychiatric Institute, New York (Wengler, Horga).
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