The dsa image processing system which the author have developed can be used as the image processing prototype model in the digital subtraction angiography system , according to the new arithmetic achieved by software it can be changed to hardware implement to the whole - one dsa system , on the other hand , it can be directly applied to the reconstruction of old x - ray machines to the new dsa system and based on this system , more applications on dsa can be developed 本研究的成果可以作为数字剪影血管造影系统中数字图象处理部分原型系统,一方面可以根据研究成果和算法转化为硬件实现方式应用于数字剪影血管造影dsa一体机中,另一方面可以直接应用于将现有x光机改造成为数字剪影血管造影系统,同时在此系统的基础上可以开发出更多的数字剪影血管造影的应用。