Imaging systems
AssigneePicker International, Inc.
InventorsIan R. Young, Michael Burl, Graham J. Clarke
Life of this patent
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Abstract
The invention provides RF field coils and detector coils for an NMR machine. The two coils are specially designed for their respective purpose, the transmit coil (5, 6) being rectangular and the received coil (7-11) substantially elliptical with defined axis ratios and spacing in the z-direction being by projection of equi-spaced conductors on to the ellipse.
Claims21
For a nuclear magnetic resonance apparatus for imaging at least one planar section of the body of a patient, a combination of a transmitting coil arrangement, for transmitting radio frequency energy to excite nuclei in said body and a receiving coil arrangement, for receiving radio frequency signals emitted by nuclei excited to resonance, wherein the transmitting coil arrangement is of rectangular shape and the receiving coil arrangement is a saddle shaped coil having a plurality of conductors disposed perpendicularly to the plane of said section and distributed substantially uniformly about an ellipse parallel to said section and wherein the transmitting coil arrangement extends beyond the receiving coil arrangement in both directions perpendicular to the plane of said section.
In combination, a transmitting coil arrangement for transmitting radio frequency energy and a receiving coil arrangement for receiving radio frequency energy, wherein the transmitting coil arrangement is of rectangular shape including conductors substantially perpendicular to a plane and the receiving coil arrangement is a saddle shaped coil having a plurality of conductors perpendicular to said plane and distributed substantially uniformly about an ellipse in said plane and wherein the transmitting coil arrangement extends beyond the receiving coil arrangement in both directions perpendicular to said plane.
Dependencies are inferred from the claim text.