Three-dimensional functional magnetic resonance imaging of human brain on a clinical 1.5-T scanner.
AUTOR(ES)
van Gelderen, P
RESUMO
Functional magnetic resonance imaging (fMRI) is a tool for mapping brain function that utilizes neuronal activity-induced changes in blood oxygenation. An efficient three-dimensional fMRI method is presented for imaging brain activity on conventional, widely available, 1.5-T scanners, without additional hardware. This approach uses large magnetic susceptibility weighting based on the echo-shifting principle combined with multiple gradient echoes per excitation. Motor stimulation, induced by self-paced finger tapping, reliably produced significant signal increase in the hand region of the contralateral primary motor cortex in every subject tested.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=41439Documentos Relacionados
- Effects on media materials of storage in proximity to a magnetic resonance imaging scanner.
- Three-Dimensional Imaging In Surgery
- Prenatal diagnosis of sirenomelia in the second trimester of pregnancy using two-dimensional ultrasound, three-dimensional ultrasound and magnetic resonance imaging
- Quantitative magnetic resonance imaging of human brain perfusion at 1.5 T using steady-state inversion of arterial water.
- Server-based Approach to Web Visualization of Integrated Three-dimensional Brain Imaging Data
