General Electric Company

Ge Medical Systems Global Technology Company, LLC

Mitsuhiro Bekku

Miho Nagasawa

Takeshi Kubota

Graeme Colin McKinnon

Yongchuan Lai

Shaorong Chang

Hongbin Wang

Yoshihiro Tomoda

Weiwei Zhang

Tongzhou Wang

Yusuke Asaba

Naotaka Adachi

Ken Arai

Janeiro Aguilar

Osamu Takayama

The present invention provides a magnetic resonance imaging method and system, the method comprising performing the following steps at least once: a composition step: performing image composition processing on raw images received by a receiving coil that is pre-determined as an artifact coil and a receiving coil that is pre-determined as a non-artifact coil to obtain a composite image; and a correction step: obtaining a product of the above composite image and space sensitivity of the above artifact coil to replace the raw image received by the above artifact coil, and performing the above composition step again.

Magnetic resonance imaging method and system

An apparatus and method for decoupling between a body coil and a surface coil. The method comprising a first acquiring step of acquiring magnetic resonance (MR) signals by concurrent reception by a body coil and a surface coil in a plurality of views; a second acquiring step of acquiring MR signals by independent reception by the body coil in some of the plurality of views; an identifying step of identifying a correspondence between the concurrently-received MR signal for the body coil, the concurrently-received MR signals for the surface coil, and the independently-received MR signal for the body coil based on the concurrently-received MR signals in the some views and the independently-received MR signals for the body coil; and a calculation step of determining the independently-received MR signals for the body coil in others of the plurality of views based on the correspondence and using the concurrently-received MR signals for the body coil and surface coil in the other views.

Magnetic resonance signal processing method, magnetic resonance signal processing apparatus and magnetic resonance apparatus, and program

A magnetic resonance apparatus configured to select a coil mode that includes a combination of coil elements to be used when a subject is scanned from within a plurality of coil elements and configured to execute a predetermined scan for acquiring data on the subject using the selected coil mode is provided. The magnetic resonance apparatus includes a coil device having n coil modes, a selecting unit configured to select, from within the n coil modes, a candidate for the selected coil mode, a scanning unit configured to execute a first scan for acquiring the data on the subject using the candidate, and a sensitivity map preparing unit configured to prepare a sensitivity map of the candidate based on data obtained by the first scan.

Magnetic resonance apparatus and method for preparing a sensitivity map

A magnetic resonance imaging apparatus executes a calibration scan for acquiring calibration data used to correct image data of a subject and an imaging scan for acquiring the image data of the subject and receives magnetic resonance signals using combinations of coil elements selected out of a plurality of coil elements. The magnetic resonance imaging apparatus includes a calibration scan condition determining device for determining a scan condition for the calibration scan, based on a first scan range of the subject taken when the imaging scan is executed and a first combination of coil elements used to receive magnetic resonance signals in the first scan range.

Magnetic resonance imaging apparatus

The invention is intended to obtain optimal shim values even if slice planes are slanted with respect to the system-inherent coordinate system. The section for setting a plane for calculating shim values sets planes perpendicular to and a plane parallel with a slice plane in a system of coordinates x', y&#x2032;, and z&#x2032; perpendicular to the slice plane. The section for calculating shim values obtains shim values with regard to this slice plane in this coordinate system, based on data acquired by the data acquiring section. The coordinates converting section converts the thus obtained shim values to shim values in the system-inherent x-y-z coordinate system of the MRI apparatus.

Magnetic resonance imaging apparatus and method for setting shim values

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Tokyo, Japan

Mitsuhiro Bekku