| 孟璐,王冰,解丽梅,赵丹.自动容积导航技术获得胎儿颅脑切面及自动测量参数的可靠性和准确性[J].中国医学影像技术,2018,34(11):1672~1676 |
| 自动容积导航技术获得胎儿颅脑切面及自动测量参数的可靠性和准确性 |
| Reliability and accuracy of smart planes technique in obtaining fetal brain planes and measuring parameters |
| 投稿时间：2018-03-28 修订日期：2018-07-30 |
| DOI：10.13929/j.1003-3289.201803180 |
| 中文关键词: 自动容积导航 超声检查 成像,三维 胎儿 脑 |
| 英文关键词:Automatic volume navigation Ultrasonography Imaging, three-dimensional Fetus Brain |
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| 中文摘要: |
| 目的 评价自动容积导航（Smart planes）技术快速获得胎儿颅脑重要切面的可靠性及其自动测量颅脑参数的准确性。方法 将80胎正常胎儿（正常组）和16胎颅脑发育异常胎儿（异常组）纳入研究，先采用二维超声以传统方法获得胎儿颅脑基本切面，包括丘脑切面（TTP）、侧脑室切面（TVP）、小脑横切面（TCP）和正中矢状面（MSP），并手动测量双顶径（BPD）、头围（HC）、侧脑室宽度（LVW）、小脑横径（TCD）和小脑延髓池深度（CMD）；然后采用自动容积导航技术获取以上切面，并自动获得以上参数。对比两种方法测量各参数和用时的差异，分析两种方法测量的一致性。结果 正常组传统方法与自动容积导航技术获取TTP、TVP、TCP的成功率差异无统计学意义（P均=0.069），异常组传统方法的成功率高于自动容积导航技术（P<0.001）；对获取MSP，正常组和异常组中自动容积导航技术的成功率均高于传统方法（P均<0.05）。2组中自动容积导航技术用时均小于传统方法（P均<0.001）。正常组中两种方法测量BPD、HC、TCD、LVW、CMD结果的组内相关系数分别为0.931、0.818、0.641、0.704和0.503，异常组分别为0.947、0.892、0.908、0.824和0.571。结论 自动容积导航技术操作简便、省时，对操作者技术依赖性小，与传统方法测量结果的一致性较高，对快速评价胎儿颅脑发育具有一定应用价值。 |
| 英文摘要: |
| Objective To evaluate the reliability of automatic volume navigation technique (Smart Planes) in obtaining fetal brain planes and its accuracy in automatically measuring important brain parameters. Methods Totally 80 normal fetuses (normal group) and 16 fetuses with brain abnormalities (abnormal group) were enrolled. Two-dimensional ultrasound was used to obtain the basic sections of the fetal brains, including transverse thalamus plane (TTP), transverse ventrical plane (TVP), transverse cerebellar plane (TCP) and median sagittal plane (MSP), and the parameters of biparietal diameter (BPD), head circumference (HC), lateral ventricle width (LVW), cerebellar transverse diameter (TCD) and cerebellar medullary depth (CMD) were manually measured. Then the automatic volume navigation technique was used to obtain the basic sections, and the parameters were automatically obtained. The differences of each parameter and time were compared, and the consistency was analyzed between the two methods. Results The successful rate of traditional methods and automatic volume navigation technique for acquiring TTP, TVP and TCP had no statistical differences in normal group (all P=0.069), while in the abnormal group, the successful rates of the traditional method was higher than those of automatic volume navigation technique (P<0.001). For the successful rate of obtaining MSP, the automatic volume navigation technique in both normal and abnormal group were higher than that of traditional method (both P<0.05). The automatic volume navigation technique was in less time than the traditional method in the two groups (both P<0.001). The intraclass correlation coefficients (ICC) of the two methods in the normal group for measuring BPD, HC, TCD, LVW and CMD was 0.931, 0.818, 0.641, 0.704 and 0.503, and in the abnormal group was 0.947, 0.892, 0.908, 0.824 and 0.571, respectively. Conclusion Automatic volume navigation technique is easy to operate, which can save time and has little dependence on operator's skill. The measuring consistency between automatic volume navigation technique and traditional methods is good. Automatic volume navigation technique has certain application value for rapid evaluation of fetal brain development. |
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