RF coil embedded with homogeneity enhancing material

Details RF coil embedded with homogeneity enhancing material RF coil embedded with homogeneity enhancing material

2007-01-30

2007-01-30

Casler, Brian L. (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S407000, C600S410000, C600S421000

Reexamination Certificate

active

10249208

ABSTRACT:
The present invention provides a system and method of improved homogeneity whereby at least a portion of an RF coil is filled with homogeneity enhancing material. Disposing the homogeneity enhancing material, such as perfluorocarbon, within the RF coil, implementation of thick saturation pads may be avoided altogether or thinner pads may be used to fill any voids between the patient and the coil. The present invention is particularly useful in a CTL coil assembly for acquiring diagnostic data of the neck region of a patient. However, the advantages achieved by the present invention may be incorporated into other surface coils for other anatomical regions where control of the susceptibility is desired. Additionally, the homogeneity enhancing material also acts as a heat sink for any hot spots on the coil.

REFERENCES:
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patent: 6794869 (2004-09-01), Brittain
patent: 2003/0216637 (2003-11-01), Ho et al.
Research Disclosure,RF Resonance Suppression by Dielectric Material, XP-002296775, Feb. 10, 2001, No. 442005, disclosed anonymously.
Th. K.F. Foo et al.,Reduction of RF Penetration Effects in High Field Imaging, Magnetic Resonance in Medicine, 23, 287-301 (1992).

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