Conclusion Order fractionalanalysis methods for the diagnosis of fetal heart system, exact abnormal structure are of great value.
结论顺序节段分析思路对于系统、确切诊断胎儿心脏结构异常有重要价值。
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Methods Using order fractionalanalysis methods of guiding 253 cases of high-risk fetal echocardiography checks on fetal heart abnormal structure system, the exact diagnosis.
方法利用顺序节段分析思路指导253例高危胎儿的超声心动检查，对胎儿心脏结构异常系统、确切诊断。
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Characteristic finite difference method, characteristic finite element method, fractional step numerical method and its theoretical analysis are mainly dealed with.