Hong Dayeong, Kim HaeKang, Kim Taehun, Kim Yong-Hee, Kim Namkug
Department of Biomedical Engineering, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Department of Radiology and Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43 Gil, Songpa-gu, Seoul, 05505, Republic of Korea.
Sci Rep. 2021 Mar 18;11(1):6191. doi: 10.1038/s41598-021-85738-w.
Herein, realistic and reusable phantoms for simulation of pediatric lung video-assisted thoracoscopic surgery (VATS) were proposed and evaluated. 3D-printed phantoms for VATS were designed based on chest computed tomography (CT) data of a pediatric patient with esophageal atresia and tracheoesophageal fistula. Models reflecting the patient-specific structure were fabricated based on the CT images. Appropriate reusable design, realistic mechanical properties with various material types, and 3D printers (fused deposition modeling (FDM) and PolyJet printers) were used to represent the realistic anatomical structures. As a result, the phantom printed by PolyJet reflected closer mechanical properties than those of the FDM phantom. Accuracies (mean difference ± 95 confidence interval) of phantoms by FDM and PolyJet were 0.53 ± 0.46 and 0.98 ± 0.55 mm, respectively. Phantoms were used by surgeons for VATS training, which is considered more reflective of the clinical situation than the conventional simulation phantom. In conclusion, the patient-specific, realistic, and reusable VATS phantom provides a better understanding the complex anatomical structure of a patient and could be used as an educational phantom for esophageal structure replacement in VATS.
在此，我们提出并评估了用于模拟小儿肺电视辅助胸腔镜手术（VATS）的逼真且可重复使用的模型。基于一名患有食管闭锁和气管食管瘘的小儿患者的胸部计算机断层扫描（CT）数据，设计了用于VATS的3D打印模型。根据CT图像制作了反映患者特定结构的模型。采用适当的可重复使用设计、具有各种材料类型的逼真机械性能以及3D打印机（熔融沉积建模（FDM）和PolyJet打印机）来呈现逼真的解剖结构。结果，与FDM模型相比，PolyJet打印的模型反映出更接近的机械性能。FDM和PolyJet模型的精度（平均差值±95%置信区间）分别为0.53±0.46和0.98±0.55毫米。外科医生使用这些模型进行VATS训练，与传统模拟模型相比，它被认为更能反映临床情况。总之，患者特异性、逼真且可重复使用的VATS模型有助于更好地理解患者复杂的解剖结构，可作为VATS中食管结构置换的教学模型。
