Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1990-04-24
1992-07-14
Williams, Hezron E.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
1286531, G01R 3320, A61B 505
Patent
active
051306565
ABSTRACT:
A surface coil for a nuclear magnetic resonance apparatus has a number of conductor sections arranged relative to each other. These sections can be connected to one another and to a reception unit by employing switches to enclose a preferable conductor geometry to obtain a localized image. The outer contour formed by the conductor sections is geometrically configured such that the width of the surface coil changes over its length. Thus, the coil can be positioned to conform to both an area and position which allow every segment of the localized area of interest of the examination subject to be examined with optimal signal-to-noise ratio. Further, a transmission coil which encompasses the conductor section is capable of transmitting localized radio-frequency signals, thus, eliminating the need for the use of a whole-body resonator for imaging localized areas of interest.
REFERENCES:
patent: 4717881 (1988-01-01), Flugan
patent: 4793356 (1988-12-01), Misic et al.
patent: 4897604 (1990-01-01), Carlson et al.
patent: 4924868 (1990-05-01), Krause et al.
patent: 4973907 (1990-11-01), Bergman et al.
patent: 4975644 (1990-12-01), Fox
Krause Norbert
Requardt Hermann
Arana Louis M.
Siemens Aktiengesellschaft
Williams Hezron E.
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