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

我们使血管流的三维分析成为可能，仅使用单向X射线入口，仅用于使用碘造影剂的血管DSA图像。该方法通过利用造影剂稀释和时间数据增强由于单向X射线进入而导致的几何信息不足，分析感兴趣区域中血管的三维位置，来重建三维血管流。为了提高重建精度，采用了多次逐次校正计算达到真值的方法，目的是校正X射线在目标中的固结影响。这导致三维血管流的重构的极高精度。

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.