3D打印可拆卸垂体瘤切除模型的真实性评估

目的探究可拆卸经鼻垂体腺瘤切除操作模型的真实性,并初步探讨了模型的教学性。方法利用患者CT建模、精细优化及3D打印技术构建可拆卸垂体腺瘤切除模型。评估者为19名来自北京协和医院的本院及进修医师,其中年资<10分入"低年资组";年资≥10分入"高年资组"。每位医师分别对3D打印垂体腺瘤切除模型进行操作,并于操作前后分别填写调查问卷、评估量表。结果高年资组的探查经验均高于低年资组。真实度项目的得分均在4附近,各评分项间无明显差异;"切除垂体腺瘤"步骤的真实性评分相对较低;高年资组评分普遍低于低年资组。操作前低年资组信心评分显著低于高年资组,操作后两组评分趋于一致;低年资组的垂体腺瘤切除信心评分变化显著高于高年资组(P<0.05)。结论该模型具有较高的真实性,可用于教学试验进一步评估教学效果。

Evaluation of the simulation degree of 3D printed removable pituitary tumor resection model

Objective To explore the simulation degree of the 3D printed removable transnasal pituitary adenoma resection model,and to discuss the possibility of teaching operation with the model.Methods Using patient CT modeling,fine optimization and 3D printed technology,a removable pituitary adenoma resection model was constructed.Nineteen evaluators from Peking Union Medical College Hospital were selected,who were divided into“lower seniority group”(seniority<10 years)and“higher seniority group”(seniority≥10 years).Each physician operated on the 3D printed pituitary adenoma resection model.They filled out questionnaires and evaluation scales before and after the operation.Results The higher seniority group have more operation experience than the lower seniority group.The scores of the simulation degree items are all around 4,and there is no significant difference found in different scoring items.The simulation degree score of“pituitary adenoma removal”is relatively low.Thescores from the higher seniority group are generally lower than those of the lower seniority group.Before the operation,the scores in the lower seniority group were significantly lower than those of the higher seniority group,while the confidence scores of the two groups after the operation tended to be the same.The difference between scores before and after operation were significantly higher in lower seniority group(P<0.05).Conclusions The model has high simulation degree and can be used in teaching experiments.