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虽然早在1920年就已对心电向量图(VCG)有了初步认识,但其临床应用应以1956年Frank导联体系提出之后,此后在全球曾有一度辉煌阶段,因为在此阶段无创检查尚不发达。此阶段美国出版
Although a preliminary understanding of VCG has been established as early as 1920, its clinical application should be based on the Frank Lead System of 1956, followed by a once-in-a-lifetime glory in the world since at this stage noninvasive examination Not yet developed. This stage the United States published