Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Reexamination Certificate
2005-04-05
2005-04-05
Shrivastav, Brij B. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
C324S319000
Reexamination Certificate
active
06876201
ABSTRACT:
A magnetic resonance imaging apparatus includes a magnetic field generation means for applying gradient magnetic fields and a radio-frequency magnetic field to a patient placed in a static magnetic field in a predetermined pulse sequence; a multiple RF receiving coil comprising at least three RF receiving coils for receiving the nuclear magnetic resonance signals generated from the patient; and an image reconstruction means for reconstructing an image by processing the received nuclear magnetic resonance signals, wherein the image reconstruction means includes a coil selection means for selecting a plurality of RF receiving coil groups that are preset by combining the plurality of RF receiving coils according to imaging conditions, a synthesization means for synthesizing the measured data received by the respective RF receiving coils of each of the plurality of selected RF receiving coil groups, and a calculation means for eliminating aliasing artifacts by executing a matrix calculation as to the synthesized data.
REFERENCES:
patent: 5712567 (1998-01-01), Wang
patent: 5808467 (1998-09-01), Ochi et al.
patent: 6326786 (2001-12-01), Pruessmann et al.
patent: 6611143 (2003-08-01), Kuhara
patent: 6777934 (2004-08-01), Takahashi et al.
Ochi Hisaaki
Takahashi Tetsuhiko
Takizawa Masahiro
Taniguchi Yo
Cooper & Dunham LLP
Hitachi Medical Corporation
Shrivastav Brij B.
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