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数字减影血管造影（ＤｉｇｉｔａｌｓｕｂｔｒａｃｔｉｏｎＡｎｇｌｏｇｒａ－ｐｈｙ，ＤＳＡ）是利用计算机处理数字化的影像信息，消除骨骼和软组织影的减影技术，是新一代血管成像方法，Ｎｕｄｅｌｍｄｎ１９７７年获得第一张ＤＳＡ图像后逐渐应用于临床。国内８０年代中期
Digital subtraction angiography (Digitalsubtraction Angngogra-phy, DSA) is the use of computer processing of digital imaging information, the elimination of bone and soft tissue subtraction subtraction technology is a new generation of vascular imaging method, Nudelmdn 1977 DSA images obtained after the gradual application of clinical. The mid-1980s