Ehime University

Fujifilm Ri Pharma Co., Ltd.

National University Corporation Ehime University

Teruhito Kido

Yuki Tanabe

Hikaru Nishiyama

Teruhito Mochizuki

Kenya Murase

Tsutomu Souma

An object of the present invention is to provide an analysis method capable of analyzing time-series images by a method simpler than ever. A computer program that is an application example of the present invention is a computer program for an image processing device including a storage unit that stores therein image data including time-series computed tomography (CT) images in a plurality of frames, of an organ of a subject captured after a contrast medium has been administered causes the image processing device to execute: a first step of determining a change-over-time of a CT value on the basis of image data including CT images in the plurality of frames; a second step of determining a predetermined slope that is a slope of the CT value with respect to a predetermined time on the basis of a change-over-time of the CT value determined in the first step; and a third step of approximating a change-over-time of the CT value with a predetermined function on the basis of the predetermined slope determined in the second step.

Image processing device, and image processing method utilizing time-series computed tomography (CT) images

An analysis method is provided that ensures objective and quantitative analysis for analyzing time-series images. For implementing the method are provided an image data storage unit that stores therein image data on a plurality of time-series computed tomography (CT) images of an organ of a subject captured after a contrast medium has been administered; a target pixel extraction unit configured to extract an intra-organ pixel position, which is a position of a pixel in a region of the organ; a change-over-time determining unit configured to determine a change-over-time of a CT value of the pixel at the determined intra-organ pixel position, based on image data on the time series CT images in the plurality of frames; and a function approximation processing unit configured to determine an arrival time at which the contrast medium has arrived at an organ at the intra-organ pixel position and a base value, which is a CT value serving as a base of the pixel at the intra-organ pixel position, based on the determined change-over-time.

Computer program, and image processing device and method

Growing community of inventors

Toon, Japan

Teruhito Kido