Tsinghua University

Beijing Huarui Boshi Medical Imaging Technology Co., Ltd.

Yibing Wang

Xin Zhang

Ke Zhang

Yang Yu

Mingtao Guan

An electrical impedance tomography apparatus () and method. The electrical impedance tomography apparatus () consists of a sensing module (), a data acquisition module (), a communication module (), a data processing module (), an image display module () and a power supply module (). The electrical impedance tomography apparatus () is applicable to medical imaging, can employ an in vivo electrode to perform multi-frequency-one-time excitation and measurement on a biological tissue under test and use a measured complex voltage signal to perform three-dimensional image reconstruction, and can simultaneously display ventilation and perfusion images in real time, thereby increasing an amount of acquired data, increasing the speed of data acquisition, increasing the sensitivity of a measurement signal to the conductivity of an in vivo tissue, and facilitating image analysis and comparison, disease detection and diagnosis.

Electrical impedance tomography apparatus and method

An electrical impedance imaging method, a system, a storage medium and an electronic device. Said method comprises: acquiring electrical impedance measurement signals of a tested human body area at a plurality of measurement times; for the electrical impedance measurement signal at each measurement time, constructing a corresponding instantaneous differential image on the basis of the electrical impedance measurement signal; constructing an image matrix on the basis of the instantaneous differential images corresponding to the plurality of measurement times, each column in the image matrix being a vector corresponding to the instantaneous differential image; determining, on the basis of the image matrix, a covariance matrix corresponding to the image matrix; obtaining, according to the covariance matrix, a weight vector of the covariance matrix; and obtaining, on the basis of the covariance matrix and the weight vector, an electrical impedance state image of the tested human body area.

Growing community of inventors

Beijing, China

Yibing Wang