时空关联成像-超声断层成像技术与二维超声进行产前胎儿心脏筛查的质量及效率比较  

Quality and efficiency of fetal heart screening by spatio-temporal image correlation with tomographic ultrasound imaging compared with two-dimensional ultrasonography

作　　者：潘锐柯[1] 周力学[1] 张莘[1] 贺丽荣[1] 

机构地区：[1]中山大学孙逸仙纪念医院妇产科,广州510120

出　　处：《中华围产医学杂志》2011年第10期577-582,共6页Chinese Journal of Perinatal Medicine

摘　　要：目的探讨如何提高产前胎儿心脏超声筛查的效率。方法以心尖四腔心为起始切面，使用时空关联成像（spatio—temporalimagecorrelation，STIC）技术采集83例正常胎儿心脏的容积数据，利用超声断层成像（tomographicultrasoundimaging，TUI）技术进行脱机分析，获取胎儿心脏筛查所需要的9个切面，并与二维（two—dimensional，2D）超声检查的图像进行质量及分析效率的比较。结果83例均获取满意的图像。（1）TUI对大动脉短轴的合格率显著高于2D（94．0％与84．3％，χ2=5．57，P=0．042），对其他8个切面，TuI合格率高于2D，差异无统计学意义。（2）TuI对于四腔心、五腔心、左室流出道、右室流出道和大动脉短轴切面的显示和2D达到了极好的一致性（Kappa分别为0．79、0．90、0．92、0．93和0．77）；对于主动脉弓、动脉导管弓腔静脉长轴和心室短轴切面的显示和2D的一致性较好（Kappa分别为0．72、0．67、0．74和0．70）。（3）STIC采集时间短于2D检查时间[（O．85±0．18）min与（5．80±1．58）min，t=3．500，P=0．000]，STIC采集＋TU1分析时间亦短于2D检查时间[（3．29±1．13）min与（5．80±1．58）rain，t=2．877，P=0．001]。结论STIC联合TUI能方便、快捷、清晰地显示胎儿心脏筛查的9个切面，有助于提高胎儿心脏超声筛查工作的质量及效率。Objective To explore how to elevate the efficiency of fetal heart screening. Methods Volume data of 83 normal fetuses ranging between 20 to 24 gestational weeks were acquired by spatiotemporal image correlation （STIC） with the apical four-chamber view（4CV）. Tomographic ultrasound imaging （TUI） was then used to present the different views of fetal hearts, and were compared with those aquired by 2-dimensional （2D） ultrasound. Results All the 83 volume datasets were obtained by STIC. （1） Qualification ratio of short axis view of the aorta （SAV） by TUI was higher than that of 2D （94. 0% vs 84. 3%,χ2== 5.57, P=0. 042）. While, in the other 8 planes, the qualification ration by STIC were higher than that of 2D, however no significant difference was found （P〉0.05）. （2） In 4CV, 5-chamber view （SCV）, left ventrieular outflow tract view （LVOT）, right ventricular outflow tract view （RVOT） and SAV, STIC showed excellent consistency with 2D （Kappa=0. 79, 0. 90, 0. 92, 0. 93 and 0. 77, respectively）. And in long axis view of the aortic arch （LAV-AoA）, long axis view of the duct （LAV-DA）, superior and inferior vena cava （SVC±IVC） and short axis view of the ventricle （SVV）, STIC showed good agreement with 2D （Kappa=0. 72, 0. 67, 0. 74 and 0.70, respectively）. （3） Image collecting time of T2D, TSTIC, TTut and TSTlC±TU1 were （5.80±1.58） min, （0..85±0.18） min, （2.57±1.32） min and （3.29± 1.13） min, respectively. There were significant difference between TsTic and T2D （t= 3. 500, P= 0. 000） and between Tsric＋Tui and TTuI （t=2. 877, P=0. 001）. Conclusion The technique of STIC-TUI used in this study can display the standard planes of fetal heart conveniently, clearly and in shorter time. It is helpful for improving the quality and efficiency of fetal heart screening.

关 键 词：胎儿心脏 超声检查 产前 超声心动描记术 二维 超声心动描记术 诊断显像 

分 类 号：R445.1[医药卫生—影像医学与核医学] R714.5[医药卫生—诊断学]