The University of Tokyo

Canon Medical Systems Corporation

Lily Medtech, Inc.

Naoki Tomii

Hirofumi Nakamura

Ichiro Sakuma

Masatoshi Yamazaki

Gakuto Aoyama

Minoru Ono

Hiroyuki Tsukihara

Haruo Yamauchi

Haruo Honjo

Shu Takagi

Asuka Hatano

Jiaming Jiao

Eriko Maeda

Hiroshi Seno

A method for estimating an arrangement of electrodes obtains detection signals when an initial electrode array having a sufficient number of electrodes for detection of excitation wave arranged and arrayed in a plane is attached to biological tissue. The method uses a plurality of input data based on detection signals obtained in a plurality of second electrode arrays generated by eliminating a predetermined number of electrodes at random from the initial electrode array, and uses an image of excitation wave in a process of obtaining the detection signals by using the initial electrode array, as teacher data, obtaining a learned model by deep learning. The method selects a second electrode array corresponding to an analysis image that is best matched with the image of the teacher data, among a plurality of analysis images obtained by applying the plurality of input data to the learned model, as a selective electrode array.

Method for estimating arrangement of electrodes on biological tissue

A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a medical image. The processing circuitry is configured to calculate a first blood flow direction on the basis of a structure of a region of interest rendered in the medical image. The processing circuitry is configured to calculate a second blood flow direction on the basis of a structure in the surroundings of the region of interest. The processing circuitry is configured to identify a condition of the region of interest, on the basis of the first blood flow direction and the second blood flow direction.

Medical image processing apparatus, medical image processing method, and storage medium

An aspect of the present disclosure calculates a phase variance value indicating a degree of variance of a phase in a surrounding of each position in a biological tissue, based on phase values of excitation wave at respective positions in the biological tissue that acts in response to excitation caused by propagation of the excitation wave in the tissue, and generates an analysis map, based on a time series of at least part of the phase variance values at the respective positions. Since the phase variance value indicates the degree of variance of the phase in the surrounding, a position having a large degree of variance of the phase in the surrounding may be specified as a rotation center of rotating excitation wave.

Analysis map generating device that analyzes a rotating excitation wave in biological tissue

Growing community of inventors

Tokyo, Japan

Naoki Tomii