Haffner Max, Quinn Austin, Hsieh Tsung-Yen, Strong E Bradley, Steele Toby
1 University of California, Davis, School of Medicine, Sacramento, California, USA.
2 Department of Otolaryngology-Head and Neck Surgery, University of California, Davis, Medical Center, Sacramento, California, USA.
Ann Otol Rhinol Laryngol. 2018 May;127(5):338-343. doi: 10.1177/0003489418764987.
Identify the 3D printed material that most accurately recreates the visual, tactile, and kinesthetic properties of human temporal bone Subjects and Methods: Fifteen study participants with an average of 3.6 years of postgraduate training and 56.5 temporal bone (TB) procedures participated. Each participant performed a mastoidectomy on human cadaveric TB and five 3D printed TBs of different materials. After drilling each unique material, participants completed surveys to assess each model's appearance and physical likeness on a Likert scale from 0 to 10 (0 = poorly representative, 10 = completely life-like). The 3D models were acquired by computed tomography (CT) imaging and segmented using 3D Slicer software.
Polyethylene terephthalate (PETG) had the highest average survey response for haptic feedback (HF) and appearance, scoring 8.3 (SD = 1.7) and 7.6 (SD = 1.5), respectively. The remaining plastics scored as follows for HF and appearance: polylactic acid (PLA) averaged 7.4 and 7.6, acrylonitrile butadiene styrene (ABS) 7.1 and 7.2, polycarbonate (PC) 7.4 and 3.9, and nylon 5.6 and 6.7.
A PETG 3D printed temporal bone models performed the best for realistic appearance and HF as compared with PLA, ABS, PC, and nylon. The PLA and ABS were reliable alternatives that also performed well with both measures.
确定最能精确重现人类颞骨视觉、触觉和动觉特性的3D打印材料。
15名研究参与者平均有3.6年的研究生培训经历，共参与了56.5例颞骨（TB）手术。每位参与者在人类尸体颞骨以及五种不同材料的3D打印颞骨上进行了乳突切除术。在对每种独特材料进行钻孔后，参与者完成了调查，以0至10的李克特量表评估每个模型的外观和物理相似度（0 = 代表性差，10 = 完全逼真）。3D模型通过计算机断层扫描（CT）成像获取，并使用3D Slicer软件进行分割。
聚对苯二甲酸乙二醇酯（PETG）在触觉反馈（HF）和外观方面的平均调查得分最高，分别为8.3（标准差 = 1.7）和7.6（标准差 = 1.5）。其余塑料在HF和外观方面的得分如下：聚乳酸（PLA）平均为7.4和7.6，丙烯腈-丁二烯-苯乙烯共聚物（ABS）为7.1和7.2，聚碳酸酯（PC）为7.4和3.9，尼龙为5.6和6.7。
与PLA、ABS、PC和尼龙相比，并PETG 3D打印颞骨模型在逼真外观和HF方面表现最佳。PLA和ABS是可靠的替代品，在这两项指标上也表现良好。
