Method and apparatus for performing interventional medical procedures using MR imaging of interventional device superimposed with ghost patient image
Patent 5155435 Issued on October 13, 1992. Estimated Expiration Date: 
August 8, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 8, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and apparatus for obtaining three dimensional tomographic images by interpolation of a plurality of projection slice data bind for obtaining projection data for a chosen slice Method for reducing motion induced image artifacts in projection imaging Patent #: 4994965 InventorsApplicationNo. 741943 filed on 08/08/1991US Classes:324/309To obtain localized resonance within a sampleExaminersPrimary: Tokar, MichaelAttorney, Agent or FirmInternational ClassG01R 033/20AbstractPositioning of interventional devices within the patient image volume of an MRI system is performed while viewing real-time fluoroscopic MR images of such devices superimposed upon a saved prior image ("ghost") of patient anatomy that was earlier located within the same image volume. After such interventional medical procedure is thoroughly planned using the earlier acquired three-dimensional ghost image, the patient anatomy is relocated within the image volume and the final selected trajectory for the interventional device or medical procedure is then performed (preferably while real time MRI fluoroscopy is used to monitor the actual interventional procedure within the real patient anatomy).Field of SearchPARTICLE PRECESSION RESONANCEUsing a nuclear resonance spectrometer system Including a test sample and control sample To obtain localized resonance within a sample By scanning sample frequency spectrum With signal decoupling By spectrum storage and analysis Including polarizing magnetic field/radio frequency tuning With conditioning of transmitter signal Spectrometer components Electronic circuit elements | |
