Meeting Banner
Abstract #2756

Quantitative Susceptibility Mapping MRI shows changes in dorsal striatum in patients with a first Episode of Psychosis compared to controls.

Marisleydis García1,2,3, Néstor Muñoz1,2,3, Manuel Chappa1,2,3, Carlos Milovic1,2,3, Cristian Montalba2,3,4, Julio Acosta-Carbonero5, Luz María Alliende6, Bárbara Iruretagoyena6, Juan Undurraga7, Alfonzo González7, Carmen Paz Castañeda7, Marcelo Andia2,3,4, Sergio Uribe2,3,4, Nicolas Crossley2,6, and Cristián Tejos1,2,3

1Departament Electrical Engineer, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile, 2Biomedical Imaging Center, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile, 3Millennium Nucleus for Cardiovascular Magnetic Resonance, Santiago de Chile, Chile, 4Radiology Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile, 5Wellcome Centre for Human Neuroimaging, University College London, London, United Kingdom, 6Pontificia Universidad Católica de Chile, Santiago de Chile, Chile, 7Instituto Psiquiátrico Horwitz, Santiago de Chile, Chile

Dopamine is a neurotransmitter that plays an important role in psychosis. Neuromelanin is a by-product of the synthesis of dopamine. In First Episode of Psychosis (FEP) is reported the effect that causes dopamine and its relationship with neuromelanin. However, it has not been reported signal change due to accumulation of heavy metal using magnetic resonance imaging techniques. We found susceptibility changes in two areas of brain using QSM, the left subthalamic nucleus and right caudate. This finding might help to discriminate between FEP patients and healthy subjects.

This abstract and the presentation materials are available to members only; a login is required.

Join Here