PDF(Pubmed)
Abstract：
OBJECTIVE: To analyze the learning curves of ultrasound novices in fetal echocardiography during structured simulation-based ultrasound training (SIM-UT) including a virtual, randomly moving fetus.
METHODS: 11 medical students with minimal (< 10 h) prior obstetric ultrasound experience underwent 12 h of structured fetal echocardiography SIM-UT in individual hands-on sessions during a 6-week training program. Their learning progress was assessed with standardized tests after 2, 4, and 6 weeks of SIM-UT. Participants were asked to obtain 11 fetal echocardiography standard planes (in accordance with ISUOG and AHA guidelines) as quickly as possible. All tests were carried out under real life, examination-like conditions on a healthy, randomly moving fetus. Subsequently, we analyzed the rate of correctly obtained images and the total time to completion (TTC). As reference groups, 10 Ob/Gyn physicians (median of 750 previously performed Ob/Gyn scans) and 10 fetal echocardiography experts (median of 15,000 previously performed Ob/Gyn scans) were examined with the same standardized tests.
RESULTS: The students showed a consistent and steady improvement of their ultrasound performance during the training program. After 2 weeks, they were able to obtain > 95% of the standard planes correctly. After 6 weeks, they were significantly faster than the physician group (p < 0.001) and no longer significantly slower than the expert group (p = 0.944).
CONCLUSIONS: SIM-UT is highly effective to learn fetal echocardiography. Regarding the acquisition of the AHA/ISUOG fetal echocardiography standard planes, the students were able to reach the same skill level as the expert group within 6 weeks.
METHODS: 11 medical students with minimal (< 10 h) prior obstetric ultrasound experience underwent 12 h of structured fetal echocardiography SIM-UT in individual hands-on sessions during a 6-week training program. Their learning progress was assessed with standardized tests after 2, 4, and 6 weeks of SIM-UT. Participants were asked to obtain 11 fetal echocardiography standard planes (in accordance with ISUOG and AHA guidelines) as quickly as possible. All tests were carried out under real life, examination-like conditions on a healthy, randomly moving fetus. Subsequently, we analyzed the rate of correctly obtained images and the total time to completion (TTC). As reference groups, 10 Ob/Gyn physicians (median of 750 previously performed Ob/Gyn scans) and 10 fetal echocardiography experts (median of 15,000 previously performed Ob/Gyn scans) were examined with the same standardized tests.
RESULTS: The students showed a consistent and steady improvement of their ultrasound performance during the training program. After 2 weeks, they were able to obtain > 95% of the standard planes correctly. After 6 weeks, they were significantly faster than the physician group (p < 0.001) and no longer significantly slower than the expert group (p = 0.944).
CONCLUSIONS: SIM-UT is highly effective to learn fetal echocardiography. Regarding the acquisition of the AHA/ISUOG fetal echocardiography standard planes, the students were able to reach the same skill level as the expert group within 6 weeks.
摘要：
目的：分析基于结构模拟的超声训练（SIM-UT）中超声新手在胎儿超声心动图中的学习曲线，随机移动的胎儿。
方法：在为期6周的培训计划中，11名具有最少（<10小时）产科超声检查经验的医学生在个人动手课程中接受了12小时的结构化胎儿超声心动图SIM-UT。在SIM-UT的2、4和6周后，通过标准化测试评估他们的学习进度。要求参与者尽快获得11个胎儿超声心动图标准平面（根据ISUOG和AHA指南）。所有测试都是在现实生活中进行的，类似于健康的检查条件，随机移动的胎儿。随后，我们分析了正确获得图像的比率和总完成时间(TTC).作为参考小组，使用相同的标准化测试检查了10名Ob/Gyn医师（先前进行了Ob/Gyn扫描的中位数为750）和10名胎儿超声心动图专家（先前进行了Ob/Gyn扫描的中位数为15,000）。
结果：学生在训练计划中表现出一致而稳定的超声表现。2周后,他们能够正确获得>95％的标准飞机。6周后,它们显著快于医师组(p<0.001),不再显著慢于专家组(p=0.944).
结论：SIM-UT对胎儿超声心动图学习非常有效。关于AHA/ISUOG胎儿超声心动图标准平面的获取，学生能够在6周内达到与专家组相同的技能水平。
方法：在为期6周的培训计划中，11名具有最少（<10小时）产科超声检查经验的医学生在个人动手课程中接受了12小时的结构化胎儿超声心动图SIM-UT。在SIM-UT的2、4和6周后，通过标准化测试评估他们的学习进度。要求参与者尽快获得11个胎儿超声心动图标准平面（根据ISUOG和AHA指南）。所有测试都是在现实生活中进行的，类似于健康的检查条件，随机移动的胎儿。随后，我们分析了正确获得图像的比率和总完成时间(TTC).作为参考小组，使用相同的标准化测试检查了10名Ob/Gyn医师（先前进行了Ob/Gyn扫描的中位数为750）和10名胎儿超声心动图专家（先前进行了Ob/Gyn扫描的中位数为15,000）。
结果：学生在训练计划中表现出一致而稳定的超声表现。2周后,他们能够正确获得>95％的标准飞机。6周后,它们显著快于医师组(p<0.001),不再显著慢于专家组(p=0.944).
结论：SIM-UT对胎儿超声心动图学习非常有效。关于AHA/ISUOG胎儿超声心动图标准平面的获取，学生能够在6周内达到与专家组相同的技能水平。
