Nuclear magnetic resonance imaging apparatus
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United States of America Patent
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Apr 23, 2002
Grant Date -
N/A
app pub date -
Nov 21, 1997
filing date -
Nov 23, 1996
priority date (Note) -
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Abstract
A medical instrument, for use in relation to an MR scanner, comprising body portion having mounted thereon a plurality of positioning elements each of which comprises a reservoir containing a liquid and at least two spaced tuned MR auxiliary receiver coils positioned coaxially with respect to one another and carried by the reservoir, and means for electrically connecting the said auxiliary coils to separate receiver channels of the MR scanner. Flux enhancement is used to enable the positioning elements to be rapidly located without disturbing the magnetization of the patient and thereby permit the position of the medical instrument and the image of the patient to be rapidly cycled between.
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