胎儿心脏时间空间关联成像联合多平面模式与二维超声的对比研究  

Comparision of STIC-Multiplanar mode and two-dimensional ultrasound in the routine scanning of fetal heart

作　　者：牟赛辉[1] 吴瑛[1] 

机构地区：[1]暨南大学第二临床医学院暨深圳市人民医院超声科,518020

出　　处：《中华医学超声杂志（电子版）》2013年第6期470-474,共5页Chinese Journal of Medical Ultrasound(Electronic Edition)

基　　金：深圳市重点科技项目(200701001)

摘　　要：目的探讨时间空间关联成像(STIC)联合多平面(MP)模式在正常胎儿心脏超声筛查中的应用价值,为STIC技术在中孕期胎儿心脏筛查中的应用提供依据。方法分别使用常规二维超声和STIC-MP成像模式对100名孕龄在20～27周的正常胎儿进行心脏筛查,记录二维超声与STIC-MP成像模式采集分析胎儿心脏筛查5个常规切面的时间,比较图像质量显示合格率、扫查及诊断分析时间的差异有无统计学意义。结果 100名正常胎儿心脏在取心尖四腔心切面的条件下,避开胎儿肢体运动,均获得满意的容积图像。二维超声显示的四腔心、左心室流出道、右心室流出道、三血管气管4个筛查切面的图像合格率分别为97.0%(97/100)、99.0%(99/100)、100.0%(100/100)、96.9%(95/98),STIC-MP成像模式重现的相应切面图像合格率分别为100.0%(100/100)、98.0%(98/100)、98.0%(98/100)、96.0%(95/99),2种方法显示相应切面合格率的差异均无统计学意义(χ2=3.030、0.337、2.010、0.000,P均>0.05)。胃泡切面二维超声(100.0%,100/100)与STIC-MP成像模式显示的图像合格率(90.6%,87/96)比较,差异有统计学意义(χ2=9.776,P=0.001)。STIC技术采集每名胎儿心脏5个切面的图像用时(1.17±0.52)min,明显短于传统二维超声的(4.20±1.35)min,差异有统计学意义(t=0.38,P=0.00)。STIC技术采集和MP分析每名胎儿心脏5个切面图像和采集分析每幅图像所用时间分别为(6.75±1.51)min、(1.35±0.30)min,长于二维超声的(4.20±1.35)min、(0.83±0.22)min,差异均有统计学意义(t=11.75、11.75,P均=0.00)。结论 STIC技术可简化图像采集过程,直接减少胎儿心脏受超声波照射的时间。除外胃泡切面,MP模式脱机重现筛查4个常规切面的用时较二维超声长,但重现切面合格率与二维超声相似,能够满足胎儿心脏超声筛查的需要。Objective To explore the clinical application of spatio -temporal image correlation combined with multiplanar mode (STIC-MP) in the routine scanning of normal fetal heart ,and to provide evidence for the application of STIC in the routine scanning of fetal heart in second trimester .Methods One hundred pregnant women at 20-27 weeks′gestation were enrolled.The routine five views of normal fetal heart were examined and recorded by two-dimensional ultrasound,and the volume datasets were acquired with STIC.The time of picture storing and the fetal cardiac structures were recorded respectively .The quality of pictures obtained by both methods were compared by the scoring system .The imaging method of STIC-MP was explored and analyzed.Results Satisfactory gray-scale volume acquisitions were accomplished in all 100 cases.The quality of the four views(four chamber view,left outflow tract,right outflow tract,three vessel-trachea views) derived from volume datasets were comparable to that directly obtained from two-dimensional scanning.No significant difference of visualization rate ( χ2 =3.030,0.337,2.010,0.000,all P>0.05)was found between the STIC-MP(100/100,98/100,98/100,95/99 as 100.0%,98.0%,98.0%,96.0%)and two-dimensional(97/100,99/100,100/100,95/98 as 97.0%,99.0%,100.0%,96.9%).However,the&nbsp;difference of visualization rate was found in the stomach transverse view ( χ2 =9.776,P=0.001).The mean time for the examination and picture saving of fetal cardiac structures by STIC ,mean acquisition time was (1.17 ±0.52) min,which was much shorter than that by two-dimensional scanning (4.20 ±1.35) min (t=0.38,P<0.05).The mean time for obtaining the routine five views of fetal heart and analyzing by STIC and MP were (6.75 ±1.51) min,(1.35 ±0.30)min respectively,which was longer than (4.20 ±1.35)min and (0.83 ±0.22)min by two-dimensional ultrasound(t=11.75,11.75,both P=0.00).Conclusions STIC-MP simplifies the picture-gathering process,decreases the ultrasound exposure upon fetal heart obviously .No significant differ

关 键 词：超声检查 产前 时间空间关联成像 多平面成像 

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]