Universidade Federal de Santa Maria (UFSM), Centro de Ciências da Saúde (CCS), Programa de Pós-Graduação Mestrado Profissional em Ciências da Saúde, Santa Maria, RS, Brazil.
Universidade Federal de Santa Maria (UFSM), Departamento de Computação Aplicada, Santa Maria, RS, Brazil.
Braz J Otorhinolaryngol. 2023 Sep-Oct;89(5):101289. doi: 10.1016/j.bjorl.2023.101289. Epub 2023 Jul 5.
To present and execute a protocol for the capture of 3D facial images using photogrammetry through the open access software Blender and its add-on OrtogOnBlender (OOB) and to evaluate the compatibility of the 3D meshes generated with Computed tomography (CT) of the sinuses.
Individuals >18 years old, candidates for Rhinoseptoplasty in a tertiary hospital, were submitted to a photographic session to perform the standardized protocol. In the session, divided into 3 phases, sequential photos were taken for processing the photogrammetry in the OOB and producing 3D meshes of the face. The photogrammetry reconstructions were compared with the reference mesh of the soft tissue surface of the Sinus CT scan to assess compatibility between them.
21 patients were included, 67% female. 3 photogrammetry meshes and 1 CT reference mesh were generated, which demonstrated matching compatibility, as most of the mean distances between cloud points were <1.48 mm. Phase 3 of the session with the highest number of photos (54.36 ± 15.05) generated the most satisfactory mesh with the best resolution.
The proposed protocol is reproducible and feasible in clinical practice, generated satisfactory 3D meshes of the face, being a potential tool for surgical planning and comparison of results. For the implementation of photogrammetry for use in 3D anthropometry, it is necessary to validate this method.
3: OCEBM Levels of Evidence Working Group. "The Oxford 2011 Levels of Evidence". Oxford Centre for Evidence-Based Medicine. http://www.cebm.net/index.aspx?o=5653.
提出并执行一个使用摄影测量法通过开放获取软件 Blender 及其附加组件 OrtogOnBlender (OOB) 捕获 3D 面部图像的方案，并评估用鼻窦计算机断层扫描 (CT) 生成的 3D 网格的兼容性。
将年龄大于 18 岁、在三级医院接受 Rhinoseptoplasty 手术的患者纳入研究，对其进行拍照，以执行标准化方案。在分为 3 个阶段的拍照过程中，对连续的照片进行拍摄，以便在 OOB 中进行摄影测量处理并生成面部的 3D 网格。将摄影测量重建与鼻窦 CT 扫描的软组织表面参考网格进行比较，以评估它们之间的兼容性。
共纳入 21 例患者，其中 67%为女性。生成了 3 个摄影测量网格和 1 个 CT 参考网格，显示出匹配的兼容性，因为大多数云点之间的平均距离<1.48 mm。阶段 3 拍摄的照片数量最多（54.36±15.05），生成的网格分辨率最佳，最令人满意。
该方案在临床实践中具有可重复性和可行性，可生成令人满意的面部 3D 网格，是手术规划和结果比较的潜在工具。要将摄影测量法用于 3D 人体测量学，需要对该方法进行验证。
3：OCEBM 证据等级工作组。“牛津 2011 年证据等级”。牛津循证医学中心。http://www.cebm.net/index.aspx?o=5653.
