| 吴红梅,蔡爱露,张颖,孙微,孙佳星.B-flow联合时间-空间相关成像技术在正常胎儿心血管系统中的应用[J].中国医学影像技术,2011,27(7):1439~1442 |
| B-flow联合时间-空间相关成像技术在正常胎儿心血管系统中的应用 |
| Application of B-flow spatio-temporal image correlation in normal fetal cardiovascular system |
| 投稿时间：2011-01-27 修订日期：2011-04-03 |
| DOI： |
| 中文关键词: 超声检查,产前 胎儿心脏 B-flow显像 时间-空间相关成像 |
| 英文关键词:Ultrasonography, prenatal Fetal heart B-flow imaging Spatio-temporal image correlation |
| 基金项目:国家"十一五"科技支撑计划课题项目(2006BAI05A04)。 |
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| 中文摘要: |
| 目的 评价四维B-flow联合时间-空间相关成像(STIC)技术在正常胎儿心血管系统中的临床应用价值。 方法 选择306胎孕20~39周正常胎儿,先在二维超声下进行常规扫查,然后进行B-flow显像及STIC数据采集。 结果 在306胎中,289胎在B-flow显像方式下STIC数据采集成功,采集成功率为94.44%(289/306);所采集的容积数据通过重建可获得下列心外血管:主动脉弓、动脉导管弓、降主动脉、下腔静脉、静脉导管、肝静脉及肺静脉。B-flow联合STIC技术对≥1条、≥2条、≥3条和4条肺静脉的显示率分别为100%(289/289)、97.23%(281/289)、81.31%(235/289)、46.37%(134/289),彩色多普勒超声的显示率分别为100%(289/289)、94.46%(273/289)、44.64%(129/289)、17.65%(51/289),二维灰阶超声显示率分别为100%(289/289)、93.08%(269/289)、40.83%(118/289)、15.92%(46/289)。采用B-flow联合STIC技术对于3条及以上肺静脉和4条肺静脉的显示率明显高于二维灰阶超声与彩色多普勒超声(P均＜0.05)。 结论 B-flow联合STIC技术能较好地显示血流速度较低的细小血管,如肺静脉。 |
| 英文摘要: |
| Objective To observe the application value of four-dimensional (4D) B-flow spatio-temporal image correlation (B-flow-STIC) in visualizing fetal cardiovascular system. Methods Three hundreds and six normal single fetuses from 20 to 39 weeks of gestation were examined with 2D transducer. Then fetal cardiac blood flow was acquired with B-flow-STIC images. The cardiac vascular system was analyzed off-line on multiplanar and reconstructed 4D rendered images. Results Complete B-flow-STIC collection was obtained in 289 fetuses (289/306, 94.44%). All extracardiac vessels of aortic arch, ductus arteriosus arch, descending aorta, inferior vena cava, ductus venosus, hepatic vein and pulmonary veins could be detected on reconstructed 3D and 4D images. The displaying rate of pulmonary veins ≥1, ≥2, ≥3 and 4 with B-flow-STIC on was 100% (289/289), 97.23% (281/289), 81.31% (235/289) and 46.37% (134/289), with color Doppler ultrasound was 100% (289/289), 94.46% (273/289), 44.64% (129/289) and 17.65% (51/289), with 2D ultrasound was 100% (289/289), 93.08% (269/289), 40.83% (118/289) and 15.92% (46/289), respectively. B-flow-STIC was better than color Doppler ultrasound and 2D ultrasound in display of pulmonary veins ≥3 and 4 (all P＜0.05). Conclusion B-flow-STIC allows visualization of cardiac blood vessel including fine small vessels with low velocity, such as pulmonary veins. |
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