Sensitivity-enhanced echo-planar MRI at 1.5T using a 5 x 5 mesh dome resonator.

Publication Type	Academic Article
Authors	Meyer K, Kim K, Li T, Tulipano P, Lee K, DeLaPaz R, Hirsch J, Ballon D
Journal	Magn Reson Med
Volume	36
Issue	4
Pagination	606-12
Date Published	10/01/1996
ISSN	0740-3194
Keywords	Echo-Planar Imaging
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.
DOI	10.1002/mrm.1910360416
PubMed ID	8892214