CAJ | 학술논문

目的：研究正常胎儿MCA血流参数的参考值范围及其随孕龄的变化规律。方法采集93例正常胎儿的MCA血流频谱图,利用自动描迹或手动描迹得到MCA￣S、MCA￣D、MCA￣S/D、MCA￣PI、MCA￣RI,按照（18~23）孕周,（24~28）孕周,（29~33）孕周,（＞34）孕周分组计算上述参数的均值,以x±s表示；通过SPSS13.0统计软件绘制上述各参数与孕龄的关系散点图。结果 MCA￣S、MCA￣D随孕龄的增长而增高,散点图显示其分布与孕龄呈线性正相关；MCA￣S/D、MCA￣PI、MCA￣RI随孕龄的增长而降低,散点图显示其分布与孕龄呈线性负相关。结论 MCA做为供应大脑最重要的血管,掌握正常胎儿MCA血流变化规律为研究异常胎儿MCA变化奠定了基础。
목적：연구정상태인MCA혈류삼수적삼고치범위급기수잉령적변화규률。방법채집93례정상태인적MCA혈류빈보도,이용자동묘적혹수동묘적득도MCA￣S、MCA￣D、MCA￣S/D、MCA￣PI、MCA￣RI,안조（18~23）잉주,（24~28）잉주,（29~33）잉주,（＞34）잉주분조계산상술삼수적균치,이x±s표시；통과SPSS13.0통계연건회제상술각삼수여잉령적관계산점도。결과 MCA￣S、MCA￣D수잉령적증장이증고,산점도현시기분포여잉령정선성정상관；MCA￣S/D、MCA￣PI、MCA￣RI수잉령적증장이강저,산점도현시기분포여잉령정선성부상관。결론 MCA주위공응대뇌최중요적혈관,장악정상태인MCA혈류변화규률위연구이상태인MCA변화전정료기출。
Objective To study the refere nce range of MCA blood flow parameters of normal fetus and the way it changes with gestational age. Methods Collected 93 MCA blood flow spectrums of normal fetuses, obtained MCA￣S、MCA￣D、MCA￣S/D、MCA￣PI、MCA￣RI from automatic and manual tracing, calculated the mean values of the above parameters of fetuses grouped by age 18~23 weeks, 24~28weeks, 29~33 weeks and over respectively, denoting with x ±s; drew with statistical software SPSS13.0 scatter diagrams denoting relationships between the above parameters and gesta-tional age. Results MCA￣S、MCA￣D increase with gestational age, showing a positive linear corre-lation on scatter diagrams; MCA￣S/D、MCA￣PI、MCA￣RI decrease with gestational age, showing a negative linear correlation. Conclusions MCA is the most important vessel providing blood to the brain. Learning the way MCA blood flow changes with gestational age in normal fetus lay the foundation for the study of MCA variation in abnormal fetus.