Chinese Academy of Sciences

Shenzhen Institutes of Advanced Technology

Shenzhen Rapoo Technology Co., Ltd.

Shanghai United Imaging Healthcare Co., Ltd.

Chao Zou

Xin Liu

Hairong Zheng

Chuanli Cheng

Chao Luo

Ye Li

Qiaoyan Chen

Jo Lee

Jianhong Wen

Qiang Zhang

Dong Liang

Guobin Li

Qiang He

Hui Cao

Wenshuai Lin

Disclosed are information transmission method, apparatus, device and medium for medical imaging application. The method includes: an imaging device corresponding to an application authorization request is determined according to the received application authorization request, and an application permission profile of the imaging device is acquired; and a medical imaging application corresponding to the imaging device is determined according to the application permission profile of the imaging device, and medical imaging application information corresponding to the medical imaging application is transmitted to the imaging device.

Information transmission method, apparatus, device and medium for medical imaging application

A shimming system for magnetic resonance imaging is provided, which includes: a multi-channel local shim coil unit configured to be installed on an inspection table of a magnetic resonance imaging system, where the multi-channel local shim coil unit includes a local multi-channel shim coil and a radio frequency receiving coil for receiving magnetic resonance signals, and the radio frequency receiving coil is placed inside the local multi-channel shim coil and separated by a distance from the local multi-channel shim coil; a computer control system configured to install and set software controlled by a DC power and calculate field maps and calculate optimization processes; a DC power system communicatively connected to the computer control system to control a value of current of each channel; and a housing having a semi-cylindrical configuration, where the local multi-channel shim coil is only distributed on a semi-cylindrical surface of the semi-cylindrical configuration of the housing.

Local shimming system for magnetic resonance imaging

An eddy-current correction method and apparatus, a mobile terminal and a readable storage medium are provided. The method includes: step Sreading gradient-recalled echo sequence by means of bipolarity, so as to acquire a multi-echo image; step Sestimating a first-order term coefficient of an extra phase term introduced by an eddy-current in the acquired multi-echo image; step Sremoving the estimated first-order term coefficient, and estimating a zero-order term coefficient of the extra phase term introduced by the eddy-current in the collected multi-echo image; step Sremoving, according to the estimated first-order term coefficient and the zero-order term coefficient, an error of the extra phase term introduced by the eddy-current. The eddy-current correction method removes the phase error caused by the eddy-current in the acquired image, thereby ensuring the correctness of the subsequent water-fat separation algorithm result.

Eddy-current correction method and apparatus, mobile terminal and readable storage medium

A local shimming system for magnetic resonance imaging and the method thereof, wherein the shimming method comprises the following steps: collecting B0 field map information using two-dimensional gradient echo (); calculating and evaluating the homogeneity of B0 (); optimizing the current of each channel shim coil (); determining whether the minimum standard deviation value of &#x394;f is obtained (); outputting an optimal current combination values and setting an optimum current value corresponding to each channel of the shim coil on the current control software (); and testing and evaluating the homogeneity of B0 to achieve the shimming goal ().

Local shimming system for magnetic resonance imaging and method thereof

A method, an apparatus, and a device for magnetic resonance chemical shift encoding imaging are provided. The method includes in a phasor-error spectrum established based on a simplified multi-point magnetic resonance signal model, determining a pixel point having a unique phase factor value and causing the phasor-error spectrum to reach a local minimum value as an initial seed point; estimating a phase factor value of a pixel point to be estimated according to the initial seed point to obtain a field map; mapping and merging the field maps at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain a phase factor value of a reconstructed pixel point to be estimated.

Method, apparatus, and device for magnetic resonance chemical shift encoding imaging

Provided are a magnetic resonance chemical-shift-encoded imaging method, apparatus, and device, belonging to the technical field of magnetic resonance imaging. The method comprises: in a phasor-error plot established on the basis of a two-point magnetic resonance signal model, determining to be an initial seed point a pixel having a unique phasor and causing said plot to reach a minimal local value; according to the initial seed point, estimating the phasor value of a to-be-estimated pixel to obtain a field map; mapping and merging the field map at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain the phasor value of the reconstructed to-be-estimated pixel; according to the reconstructed seed point and the phasor value of the reconstructed to-be-estimated pixel, obtaining two separate images having predetermined components. In the method, a region simultaneously containing two components is identified as a seed point, eliminating the deviation caused by phasor-value jump at high resolution and ensuring the correctness of the seed point ultimately selected.

Magnetic resonance chemical-shift-encoded imaging method, apparatus and device

Keyboard

The present invention relates to the wireless transmission technology. Disclosed is a one-to-many 2.4G wireless computer peripheral communication device, which includes a 2.4G wireless USB transmit-receive adapter connected with a USB interface of an intelligent appliance and more than one 2.4G wireless computer peripheral cooperated with the USB transmit-receive adapter. Also disclosed is a transmission method of one-to-many 2.4G wireless computer peripheral communication device, which includes the following steps: (1) presetting an occupied time period of each 2.4G wireless computer peripheral; (2) selecting a channel; (3) establishing a channel; and (4) transmitting data. The present invention enables a USB transmit-receive adapter to communicate with more than one peripheral, and has the advantages that the wireless signal is steady, all the peripherals work at the same time without interfering with each other and it is convenient to add computer peripherals.

Growing community of inventors

Guangdong, China

Chao Zou