General Electric Company

Siemens Aktiengesellschaft

Ge Precision Healthcare LLC

Wang, Tongzhou

Zhang, Chuanyu

Wang, Yan

Li, Dong

Zhang, Meng

Tongzhou Wang

Yongchuan Lai

Hongbin Wang

Yan Wang

Dong Li

Meng Zhang

Graeme Colin McKinnon

XiaoBo Yang

Shaorong Chang

Tengfei Wang

Yoshihiro Tomoda

Weiwei Zhang

Chuan Yu Zhang

Mitsuhiro Bekku

Jia Guo

Chuanyu Zhang

Chinmoy Goswami

Lisha Nie

Jiaqi Li

Andrew Byshenk

Yaolei Kang

Jianyong Zhang

Disclosed is a redundant hot standby control system including K industrial personal computers, with a plurality of virtual control devices being established thereon respectively, at least one of the plurality of virtual control devices being established on each IPC as a main control device; and the other virtual control devices being standby control devices. Each of the standby control devices corresponds to a virtual control device, which serves as the main control device on another IPC, except for the IPC to which the standby control device itself belongs. A procedure, which is the same as that operated on the main control device corresponding thereto, is operated on the standby control device. A control bus of the system is used for connecting a plurality of the M IPCs; and a field bus is used for connecting the M IPCs and a plurality of field devices.

Redundant hot standby control system and control device, redundant hot standby method and computer-readable storage medium

Methods and apparatuses for processing MR signal are disclosed herein. An exemplary method comprises: when acquired K-space signals are amplified, assigning a first amplification gain to signals within a first signal region in the K space, and assigning a second amplification gain to signals within a second signal region in the K space.

Method and apparatus for processing MR signal, and computer program

Methods and apparatuses for calibrating a center frequency of MR and an MRI system are disclosed herein. An exemplary method comprises applying a first set of gradient fields, receiving data information acquired by an RF coil and generating a first image; applying a second set of gradient fields in directions different than those of the first set of gradient fields, receiving data information acquired by the RF coil and generating a second image; calculating a shift of the center frequency based on the first image and the second image; and correcting the center frequency based on the shift of the center frequency.

Method and apparatus for calibrating center frequency of MR and MRI system

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

A PET-MRI system for imaging an object is provided. The PET-MRI system includes a magnetic resonance imaging sub-system, a positron emission tomography sub-system, an optical sensor, and a data processing controller. The magnetic resonance imaging sub-system includes a surface coil that acquires magnetic resonance signals from the object. The positron emission tomography sub-system acquires PET emissions from the object. The optical sensor detects at least one of a spatial location and a shape of the surface coil. The data processing controller communicates with the magnetic resonance imaging sub-system, the positron emission tomography sub-system, and the optical sensor, and utilizes at least one of the detected spatial location and the detected shape of the surface coil to correct the acquired PET emissions for attenuation.

System and method for attenuation correction of a surface coil in a PET-MRI system

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Beijing, China

Tongzhou Wang