Sensitivity-enhanced echo-planar MRI at 1.5T using a 5 x 5 mesh dome resonator Journal Article
| Authors: | Meyer, K. L.; Kim, K.; Li, T.; Tulipano, P. K.; Lee, K. M.; DeLaPaz, R.; Hirsch, J.; Ballon, D. |
| Article Title: | Sensitivity-enhanced echo-planar MRI at 1.5T using a 5 x 5 mesh dome resonator |
| Abstract: | In this work a 5 x 5 mesh dome resonator that has been optimized for functional brain imaging is presented. The resonator was reduced in length and diameter compared with previous versions to reduce sample losses, thus enhancing the signal-to-noise ratio of the acquired data. In addition, a 5 x 5 mesh design was employed, which offered improved axial homogeneity over an earlier 3 x 3 mesh version. The new resonator exhibited high sensitivity and good homogeneity over the brain volume, permitting analysis of functional activation over large areas of the cerebral cortex. In a direct comparison with a standard clinical head-imaging resonator, the high sensitivity of the 5 x 5 mesh dome resonator resulted in greater statistical confidence in functional activation. |
| Keywords: | nuclear magnetic resonance imaging; diagnostic accuracy; sensitivity and specificity; models, theoretical; cerebral cortex; normal human; functional mri; human experiment; sensorimotor cortex; visual cortex; brain radiography; echo-planar imaging; humans; human; article; radiofrequency resonator; two- dimensional ladder network |
| Journal Title: | Magnetic Resonance in Medicine |
| Volume: | 36 |
| Issue: | 4 |
| ISSN: | 0740-3194 |
| Publisher: | John Wiley & Sons |
| Date Published: | 1996-10-01 |
| Start Page: | 606 |
| End Page: | 612 |
| Language: | English |
| PUBMED: | 8892214 |
| PROVIDER: | scopus |
| DOI: | 10.1002/mrm.1910360416 |
| DOI/URL: | |
| Notes: | Article -- Export Date: 22 November 2017 -- Source: Scopus |
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