Development of low-cost stereographic DSA by used one-directional X-ray for improvement of difference between medical facilities

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We made a three-dimensional analysis of the blood vessel stream possible using only one-directional X-ray entrance for only blood vessel DSA images using iodine contrast agents. This method reforms the three-dimensional blood vessel stream by enhancing insufficient geometric information due to a one-direction X-ray entrance with contrast agent dilution and time data, analyzing the three-dimensional position of the blood vessel in the area of interest. To improve the accuracy of reformation, this method which reaches the true value by repeating sequential correction calculations, was adopted with the purpose of correcting the influence of X-ray consolidation in the objects. This resulted in extremely high accuracy of the reformation of the three-dimensional blood vessel stream.