探讨快速旋转扫查法在胎儿超声心动图标准切面获得方面的应用价值。

选择2019年陕西省胎儿心脏超声中长期培训班2期学员共59名，全部进行快速旋转扫查法的理论授课及操作培训，培训前后分别进行胎儿超声心动图标准切面操作双盲考核，采用配对Wilcoxon符号秩检验对比培训前后考核分数的变化，采用χ²检验比较培训前后胎儿超声心动图各标准切面获得人数的差异，评价快速旋转扫查法的应用效果。

培训后胎儿超声心动图标准切面的总体考核成绩、切面图像得分及完成时间得分较培训前有明显提高［81（57，89）分 vs 33（28，74）分；43（39，44）分 vs 33（28，43）分；41（16，46）分 vs 0（0，31）分］，差异具有统计学意义（Z=-6.688、-6.074、-5.988，P均＜0.001）。对于肺动脉长轴切面、主动脉弓长轴切面、动脉导管弓长轴切面、大动脉根部短轴切面及上下腔静脉长轴切面，培训后获得人数明显高于培训前（59 vs 49、59 vs 46、55 vs 21、51 vs 30、59 vs 43），差异具有统计学意义（χ²=10.926、14.610、42.734、17.363、18.510，P=0.001、＜0.001、＜0.001、＜0.001、＜0.001）。同时，培训后在考核规定时间内完整获取所有切面的人数也明显增加（完成时间≤3 min：17 vs 0；完成时间≤10 min：47 vs 21），差异具有统计学意义（χ²=19.861、23.461，P均＜0.001）。

快速旋转扫查法能够明显提高胎儿超声心动图标准切面的获得效率，对于胎儿心脏的超声检查具有重要意义。

To discuss the value of fast rotary scanning method in observing standard sections of fetal echocardiography.

Fifty-nine students attending the medium and long term training course of fetal echocardiography in Shaanxi Province in 2019 received theory and operation training of the fast rotary scanning method. Before and after the training, double-blind examination of standard section operation in fetal echocardiography was performed. The paired samples Wilcoxon signed rank test was performed to compare test scores, and the chi-square test was used to compare the number of people who obtained sections before and after training. Finally, the application effect of the fast rotary scanning method was evaluated.

After training, the score of overall assessment of fetal echocardiography standard section, section image score, and completion time score were significantly improved compared with those before training [81 (57, 89) vs 33 (28, 74); 43 (39, 44) vs 33 (28, 43); 41 (16, 46) vs 0 (0, 31); Z=-6.688, -6.074, and -5.988, respectively; P＜0.001 for all]. For the sections of the pulmonary artery, aortic arch, aortic axis, and long axis of the superior and inferior vena cava, the number of trainees who obtained all sections after the training was significantly more than that before training (59 vs 49, 59 vs 46, 55 vs 21, 51 vs 30, 59 vs 43, χ²=10.9926, 14.610, 42.734, 17.363, and 18.510, P=0.001, <0.001, <0.001, <0.001, and <0.001, respectively). After the training, the number of trainees who obtained all sections of the section within the specified time of the assessment also increased significantly (≤3 min: 17 vs 0; ≤10 min: 47 vs 21; χ²=19.861 and 23.461, respectively, P＜0.001 for both).

The fast rotary scanning method can obviously improve the efficiency of obtaining standard sections in fetal echocardiography, which has great significance for fetal heart ultrasound examination.