| 摘要: |
| 目的 对比三种模拟穿刺模型（商业化的蓝胶模型、自制明胶模型以及自制豆腐模型）在超声引导穿刺技术教学中的应用，比较其可行性、教学效果，为教学工作中选择合适的教具提出参考。方法 招募南京医科大学不同年级在校学生30名，所有招募的学生经过超声引导下神经阻滞技术教学后，尝试在模型上实施超声引导下神经阻滞，以报数的顺序分配模拟模型，每名学员每种模型模拟练习15 min，最终完成三种模型的模拟训练。穿刺训练完成后，指导教师评估培训效果，学员需从仿真程度、耐用性、易清洁性、图像识别度及偏好程度五个方面，采用数字评分评价三种模型。结果 指导教师依据学生操作过程中针道显影的清晰程度，对培训效果进行评价，三组学生间的评分比较差异无统计学意义。模型的仿真程度、耐用性、易清洁性的评分方面比较，蓝胶模型优于明胶模型和豆腐，差异均有统计学意义（均P＜0.05）。三组模型图像识别度的评分差异无统计学意义。获知模型价格前，各有40%学员偏好蓝胶模型和明胶模型，仅20%学员偏好豆腐模型；获知模型价格后，73%学员偏好明胶模型。结论 超声引导下模拟穿刺教学用的教学模型选择需结合教学需求、费用预算及学员的偏好等多方面进行综合评估。在需要自主设计的穿刺模型中，明胶模型有较大的优势。 |
| 关键词: 超声引导 模拟教学 教学模型 |
| DOI： |
| 投稿时间：2018-10-22修订日期：2019-04-09 |
| 基金项目: |
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| Value of task trainer models for ultrasound guided blocks during procedural simulation |
| cheng hao |
| (Affiliated Nanjing Hospital of Nanjing Medical University, Nanjing First Hospital) |
| Abstract: |
| Objective To compare three simulated models（a commercially available model manufactured by Blue Phantom，a homemade gelatin model and a homemade tofu model） in the teaching of ultrasound-guided puncture technology，and the feasibility and teaching effect of the three models in the teaching programe were compared, so as to provide reference for the selection of appropriate teaching model. Methods 30 students from Nanjing medical university were enrolled into the study.All participants were recruited following an ultrasound guided regional nerve block tutorial.Following the tutorial，they attempted ultrasound guided nerve blocks using three different task trainers.Participants were assigned to each station in counting order but ultimately completed all three stations.After performing ultrasound guided nerve blocks using all three task trainers，the instructor evaluates the training effects，and the study participants were asked to give a numerical score for the following categories：realism，durability，cleanliness，image recognition degree and preference.Results The instructor evaluated the training effect according to the clarity of needle-track development in the process of students' operation, and there was no statistically significant difference among the three groups.The Blue Phantom model was favored in regard to realism，durability and cleanliness，respectively.There was no significant difference in image recognition scores among the three groups.Prior to revealing the cost of the task trainers，40% of the participants preferred the Blue Phantom model，while 40% preferred the homemade gelatin model and 20% preferred the homemade tofu model.After revealing the cost of each trainer，73% preferred the gelatin model.Conclusion The ultrasound-guided simulated puncture teaching needs to be evaluated according to the existing conditions of the unit，the actual cost and students' preferences，so as to select the most appropriate model.Among the puncture models that need to be designed independently, gelatin model has great advantages. |
| Key words: Ultrasound guided Procedural simulation Task trainer model |
