Dynamic radiographic image obtaining method and apparatus

摘要

A method and apparatus for obtaining a dynamic radiographic image with enhanced resolution, in which an electrocardiogram of a subject is obtained, and five time phases are allocated to each cardiac beat period (1 second). The initial X-ray irradiation is performed at 1^st time phase of 1^st beat to obtain a radiographic image. Thereafter, X-ray irradiations are performed sequentially at 2^nd time phase of 2^nd beat, at 3^rd time phase of 3^rd beat, at 4^th time phase of 4^th beat, and at 5^th time phase of 5^th beat to obtain respective radiographic images. The five radiographic images obtained are combined at the time interval of 0.2 seconds to be displayed as a motion image. The time interval between the irradiations of the X-ray is 1.2 seconds, so that image signals corresponding to 1^st to 5^th time phases may be obtained with high resolution.