与多切片CT扫描仪相比,光学白光桌面3D扫描仪和形光束CT扫描仪的准确性用于数字化解剖学3D模型:试点研究
Mauranne Lievens1, Lisa De Kock1, Matthias Ureel1
1Department of Oral & Craniomaxillofacial Surgery, Ghent University Hospital, 9000 Ghent, Belgium; mauranne.lievens@ugent.be (M.L.); matthias.ureel@uzgent.be (M.U.).
Craniomaxillofacial trauma & reconstruction
|May 26, 2025
概括
光学白光桌面扫描仪 (OWLDS) 与束CT (CBCT) 和多切片CT (MSCT) 扫描仪相比,为3D解剖模型提供了更高的精度. 这种具有成本效益的技术非常适合在手术规划中验证内部3D打印质量.
科学领域:
- 医学成像和3D建模3D建模
- 在医疗保健领域的增材制造.
- 手术规划技术 手术规划技术
背景情况:
- 增材制造 (3D打印) 与虚拟手术规划相结合,提高了复杂手术的可预测性.
- 确保和验证3D打印的质量对于临床工作流程中的患者安全至关重要.
- 准确的患者特定解剖模型的数字化是有效的医学3D打印的先决条件.
研究的目的:
- 为了比较光学白光桌面扫描仪 (OWLDS) 与束CT (CBCT) 和多切片CT (MSCT) 扫描仪的精度.
- 评估这些扫描方式是否适合数字化3D解剖模型用于增材制造.
- 确定最佳的扫描方法,以确保患者特定的外科应用中高质量的3D打印.
主要方法:
- 用MSCT,CBCT和OWLDS扫描了经过CE认证的解剖学头骨的22个可移除的部分.
- 从每个模式的扫描中生成立体石刻 (STL) 文件.
- 在STL文件上进行了部分比较分析,以量化表面匹配偏差.
主要成果:
- 与MSCT相比,OWLDS显示了最高的精度,与MSCT相比,整体表面匹配偏差最小 (0.04 mm).
- 与MSCT相比,CBCT显示出0.07毫米的偏差.
- 扫描模式之间的精度差异随着解剖模型体积的减少而增加,有利于较小模型的高分辨率光学扫描.
结论:
- OWLDS是一种安全,经济有效,用户友好和高精度的扫描模式,用于评估3D模型制造.
- 建议使用高分辨率的光学扫描,以便在较小的解剖模型中获得更高的精度.
- 准确的3D扫描对于增材制造的质量保证至关重要,用于针对患者的手术规划.
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