摘要目的 初步观察心肌带(ventricular myocardial band,VMB)结构在常用心脏超声切面的分布情况.方法 成年猪心、牛心和羊心各5个,按照VMB的标准解剖方法将心脏解剖为完整的VMB结构,将VMB各段按标准分界后用油性染料着色,自然凉干后还原为未解剖前状态.将已染色的还原VMB按常用心脏超声切面切开,显示各个平面上VMB各段的分布情况.结果 清楚地显示了VMB各段在不同平面中的分布情况,其中左心室在不同平面中显示由2～3层心肌构成,而右心室则仅由1层心肌构成.结论 在不同的常用心脏超声切面中,心肌带各段的分布情况不尽相同,为今后使用心脏超声进一步深入研究心肌带结构和功能打下了一定基础.

abstractsObjective To observe the distribution of different ventricular myocardial band segment's in different echocardiogram sectiones. Methods 5 swine hearts, 5 ox hearts and 5 sheep hearts were dissect to the ventricular myocardial band structure by the standard anatomy method. After the demarcation line of each segment of ventricular myocardial band was defined, they were dyed with different colors and then were recovered into the state before dissecting. At last, they were cut open according to different echocardiogram sectiones. Results With relative stabile anatomy methods, all hearts presented to be a unique integrate myocardial band,with two loops, the basic loop and apical loop, and four segments. At different echocardiogram sectiones, the left ventricle is formed by three muscular strata, while the right ventricle is formed by only one muscular strata. Conclusion The distribution of different ventricular myocardial band segments in different echocanliogram sectiones is significantly different.