Premium
Sensitivity‐enhanced echo‐planar MRI at 1.5T using a 5 × 5 mesh dome resonator
Author(s) -
Meyer Kristen L.,
Kim Karl,
Li Tao,
Tulipano Paola K.,
Lee KyoungMin,
Delapaz Robert,
Hirsch Joy,
Ballon Douglas
Publication year - 1996
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910360416
Subject(s) - resonator , homogeneity (statistics) , sensitivity (control systems) , materials science , planar , nuclear magnetic resonance , dome (geology) , biomedical engineering , physics , computer science , optoelectronics , medicine , electronic engineering , geology , engineering , computer graphics (images) , machine learning , paleontology
In this work a 5 × 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 × 5 mesh design was employed, which offered improved axial homogeneity over an earlier 3 × 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 × 5 mesh dome resonator resulted in greater statistical confidence in functional activation.