The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2002
Filed:
Oct. 10, 2000
Ian Robert Young, Marlborough, GB;
Abstract
The image produced by a magnetic resonance imaging apparatus using a receive coil has inaccuracies due to external circumstances which affect the signal produced by the coil Thus, noise spikes affect the signal, although more usually extensive shielding is provided. Also, changes of loading of the coil produced by movement of the patient vary the Q of the coil and hence the signal output. In accordance with a first aspect of the invention, a second coil superimposed on the coil is tuned to a frequency offset compared to the MR center frequency and is used to monitor coil loading to enable the signal from coil to be corrected, and in accordance with a second aspect of the invention an additional coil or preferably both, is/are provided in order to detect broadband noise and enable its suppression on the output of the coil