Digital twin-based bronchoscopy simulator improves training performance and skill retention of novices: a randomised controlled study.

This study used a digital-twin bronchoscopy simulator with various CT-derived bronchial tree models to better train novices.

本研究使用了具有各种CT衍生支气管树模型的数字孪生支气管镜模拟器，以更好地培训新手。

Background

To explore training with various anatomically diverse bronchial tree models in novices' bronchoscopy performance.

探讨使用各种解剖结构不同的支气管树模型对初学者支气管镜操作性能的训练效果。

Methods

60 bronchoscopy-naive participants were randomly assigned to three groups (n=20 each): control (written instruction only), anatomic-uniformity (trained on one standard bronchial model) and anatomic-variety (trained on multiple patient-derived bronchial models).

60名未接受过支气管镜检查的参与者被随机分为三组（每组20人）：对照组（仅接受书面指导）、解剖结构一致性组（在一种标准支气管模型上接受训练）和解剖结构多样性组（在多个患者来源的支气管模型上接受训练）。

All participants performed two tests: test 1 on a standard model and test 2 on a new CT-derived model.

所有参与者进行了两项测试：在标准模型上进行测试1，在新的CT衍生模型上进行测试2。

Both tests were repeated 3 months later to assess skill retention.

这两项测试在3个月后重复进行，以评估技能保持情况。

The primary comparison was between the anatomic-variety and anatomic-uniformity groups.

主要比较是在解剖学多样性组和解剖学一致性组之间进行的。

measurements_and_main_results

60 participants completed tests 1 and 2. 55 returned at 3 months.

60名参与者完成了测试1和测试2。3个月后有55人返回。

In test 1, there were no significant differences between the anatomic-variety and anatomic-uniformity groups in diagnostic completeness (DC, 0 segments, p=0.576), structured progress (SP, 1 correct progression, p=0.091) and procedure time (31 s, p=0.831).

在测试1中，解剖多样性组与解剖一致性组在诊断完整性（DC，0段，p=0.576）、结构化进展（SP，1个正确进展，p=0.091）和手术时间（31秒，p=0.831）方面没有显著差异。

In test 2, the anatomic-variety group had significantly higher DC (2.5 segments, p<0.001) and SP (9 progression, p<0.001) than the anatomic-uniformity group.

在测试2中，解剖多样性组的诊断完整性（DC，2.5段，p<0.001）和结构化进展（SP，9个进展，p<0.001）显著高于解剖一致性组。

At 3 months, the anatomic-variety group retained superior DC and SP scores in both tests despite slight declines.

在3个月时，解剖多样性组在两项测试中仍保持了更高的诊断一致性（DC）和技能掌握（SP）评分，尽管有所下降。

Conclusions

Training with diverse anatomical models significantly enhanced bronchoscopy performance compared with repetitive practice on a single standardised model with partially maintained learning gains at 3 months.

与在单一标准化模型上进行重复练习相比，使用多样化的解剖模型进行训练显著提高了支气管镜操作表现，并在3个月后部分保持了学习成果。