published patent: System and method for MRI tagging using spatial modulation of magnetization

TitleSystem and method for MRI tagging using spatial modulation of magnetization
Priority Date2002-05-03 US 10/143316
Inventors
Issue Date2003
Citation
US Published patent application US 2003206013. Washington, DC: US Patent and Trademark Office (USPTO), 2003 How to Cite?
AbstractA method of inducing tag lines in an MRI image is provided which allows adjustment of tag line width and spacing. The method includes determining a desired tag line width and then selecting a parameter of a SINC modulating function, such as main lobe bandwidth, in accordance with the desired tag line width. The method also includes determining a desired tag line separation and selecting a parameter of an RF pulse train based upon the desired tag line separation. A gradient field is applied to the specimen being imaged. The RF pulse train is modulated in accordance with the SINC modulating function and the modulated RF pulse train is applied to the specimen being imaged prior to an image acquisition operation. In one embodiment of the invention, the gradient is activated between pulses of the RF pulse train and is deactivated during the RF pulses.
Persistent Identifierhttp://hdl.handle.net/10722/176851

 

DC FieldValueLanguage
dc.date.accessioned2012-11-30T08:38:35Z-
dc.date.available2012-11-30T08:38:35Z-
dc.date.issued2003-
dc.identifier.citationUS Published patent application US 2003206013. Washington, DC: US Patent and Trademark Office (USPTO), 2003en_HK
dc.identifier.urihttp://hdl.handle.net/10722/176851-
dc.description.abstractA method of inducing tag lines in an MRI image is provided which allows adjustment of tag line width and spacing. The method includes determining a desired tag line width and then selecting a parameter of a SINC modulating function, such as main lobe bandwidth, in accordance with the desired tag line width. The method also includes determining a desired tag line separation and selecting a parameter of an RF pulse train based upon the desired tag line separation. A gradient field is applied to the specimen being imaged. The RF pulse train is modulated in accordance with the SINC modulating function and the modulated RF pulse train is applied to the specimen being imaged prior to an image acquisition operation. In one embodiment of the invention, the gradient is activated between pulses of the RF pulse train and is deactivated during the RF pulses.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documentsen_US
dc.titleSystem and method for MRI tagging using spatial modulation of magnetizationen_HK
dc.typePatenten_US
dc.description.naturepublished_or_final_versionen_US
dc.contributor.inventorWu, EXen_HK
dc.contributor.inventorTang Haiyingen_HK
patents.identifier.applicationUS 10/143316en_HK
patents.description.assigneeUNIV COLUMBIA [US]en_HK
patents.description.countryUnited States of Americaen_HK
patents.date.publication2003-11-06en_HK
patents.date.application2002-05-03en_HK
patents.date.priority2002-05-03 US 10/143316en_HK
patents.description.ccUSen_HK
patents.identifier.publicationUS 2003206013en_HK
patents.relation.familyAU 2003237171 (A1) 2003-11-17en_HK
patents.relation.familyUS 2003206013 (A1) 2003-11-06en_HK
patents.relation.familyUS 6778847 (B2) 2004-08-17en_HK
patents.relation.familyUS 2005182314 (A1) 2005-08-18en_HK
patents.relation.familyWO 03093871 (A2) 2003-11-13en_HK
patents.description.kindA1en_HK
patents.typePatent_publisheden_HK

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