T1ρ and T2ρ MRI in the evaluation of Parkinson’s disease
- 8 January 2010
- journal article
- research article
- Published by Springer Science and Business Media LLC in Zeitschrift für Neurologie
- Vol. 257 (6), 964-968
- https://doi.org/10.1007/s00415-009-5446-2
Abstract
Prior work has shown that adiabatic T1ρ and T2ρ relaxation time constants may have sensitivity to cellular changes and the presence of iron, respectively, in Parkinson’s disease (PD). Further understanding of these magnetic resonance imaging (MRI) methods and how they relate to measures of disease severity and progression in PD is needed. Using T1ρ and T2ρ on a 4T MRI scanner, we assessed the substantia nigra (SN) of nine non-demented moderately affected PD and ten gender- and age-matched control participants. When compared to controls, the SN of PD subjects had increased T1ρ and reduced T2ρ. We also found a significant correlation between asymmetric motor features and asymmetry based on T1ρ. This study provides additional validation of T1ρ and T2ρ as a means to separate PD from control subjects, and T1ρ may be a useful marker of asymmetry in PD.Keywords
This publication has 28 references indexed in Scilit:
- Glutathione depletion in immortalized midbrain-derived dopaminergic neurons results in increases in the labile iron pool: Implications for Parkinson's diseaseFree Radical Biology & Medicine, 2009
- Detection of neuronal loss using T1ρ MRI assessment of 1H2O spin dynamics in the aphakia mouseJournal of Neuroscience Methods, 2009
- Genetics of iron regulation and the possible role of iron in Parkinson's diseaseNeurobiology of Disease, 2008
- Divalent metal transporter 1 (DMT1) contributes to neurodegeneration in animal models of Parkinson's diseaseProceedings of the National Academy of Sciences of the United States of America, 2008
- Detection of Parkinson's disease by MRI: Spin‐lattice distribution imagingMovement Disorders, 2008
- Neuromelanin can protect against iron‐mediated oxidative damage in system modeling iron overload of brain aging and Parkinson’s diseaseJournal of Neurochemistry, 2008
- T1ρ MRI of Alzheimer's diseaseNeuroImage, 2008
- Motor asymmetry and substantia nigra volume are related to spatial delayed response performance in Parkinson diseaseBrain and Cognition, 2008
- Assessment of brain iron and neuronal integrity in patients with Parkinson's disease using novel MRI contrastsMovement Disorders, 2006
- Increased iron (III) and total iron content in post mortem substantia nigra of parkinsonian brainJournal of Neural Transmission, 1988