Efficient high-frequency body coil for high-field MRI

The use of body coils is favored for homogeneous excitation, and such coils are often paired with surface coils or arrays for sensitive reception in many MRI applications. While the body coil's physical size and resultant electrical length make this circuit difficult to design for any field str...

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Bibliographic Details
Published in:Magnetic resonance in medicine 2004-10, Vol.52 (4), p.851-859
Main Authors: Vaughan, J.T., Adriany, G., Snyder, C.J., Tian, J., Thiel, T., Bolinger, L., Liu, H., DelaBarre, L., Ugurbil, K.
Format: Article
Language:English
Subjects:
body coil
body imaging
Equipment Design
high field
Humans
Image Enhancement - instrumentation
Magnetic Resonance Imaging - instrumentation
MRI
TEM
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Summary:The use of body coils is favored for homogeneous excitation, and such coils are often paired with surface coils or arrays for sensitive reception in many MRI applications. While the body coil's physical size and resultant electrical length make this circuit difficult to design for any field strength, recent efforts to build efficient body coils for applications at 3T and above have been especially challenging. To meet this challenge, we developed an efficient new transverse electromagnetic (TEM) body coil and demonstrated its use in human studies at field strengths up to 4T. Head, body, and breast images were acquired within peak power constraints of
ISSN:0740-3194
1522-2594
DOI:10.1002/mrm.20177