Spatial resolution enhancement using sensitivity-encoded echo-planar imaging at 3T in a typical motor paradigm
| Autor: | Conny F. Schmidt, Peter Boesiger, Klaas P. Pruessmann |
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| Přispěvatelé: | University of Zurich, Boesiger, Peter |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male 1707 Computer Vision and Pattern Recognition Computer science Statistical sensitivity Health Informatics 610 Medicine & health Sensitivity and Specificity 1704 Computer Graphics and Computer-Aided Design 170 Ethics Humans 2741 Radiology Nuclear Medicine and Imaging Radiology Nuclear Medicine and imaging Computer vision 10237 Institute of Biomedical Engineering Sensitivity (control systems) Image resolution 3614 Radiological and Ultrasound Technology Sensitivity encoding 2718 Health Informatics Echo-planar imaging Radiological and Ultrasound Technology Echo-Planar Imaging business.industry Resolution (electron density) Computer Graphics and Computer-Aided Design Female Computer Vision and Pattern Recognition Artificial intelligence Parallel imaging business |
| DOI: | 10.5167/uzh-95585 |
| Popis: | We employ a single-shot sensitivity-encoded (SENSE) gradient-echo EPI acquisition in order to enhance spatial resolution in a typical motor fMRI experiment at 3T. Functional time series were acquired with an acquisition matrix size of 56x192 within a readout time of 82 ms, yielding an effective in-plane resolution of 0.94 mmx0.94 mm and compared to a conventional acquisition. Our data suggest that fMRI can readily be performed with a spatial resolution adapted to detailed cortical functional topography. However, in all potential applications the specific behavior of spatial specificity and statistical sensitivity needs to be taken into account. |
| Databáze: | OpenAIRE |
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