Department of Pathology, Chung Shan Medical University Hospital, Taichung, Taiwan.
Department of Pathology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.
PLoS One. 2024 Jun 3;19(6):e0304506. doi: 10.1371/journal.pone.0304506. eCollection 2024.
BACKGROUND: The use of three-dimensional(3D) printing is broadly across many medical specialties. It is an innovative, and rapidly growing technology to produce custom anatomical models and medical conditions models for medical teaching, surgical planning, and patient education. This study aimed to evaluate the accuracy and feasibility of 3D printing in creating a superficial femoral artery pseudoaneurysm model based on CT scans for endovascular training. METHODS: A case of a left superficial femoral artery pseudoaneurysm was selected, and the 3D model was created using DICOM files imported into Materialise Mimics 22.0 and Materialise 3-Matic software, then printed using vat polymerization technology. Two 3D-printed models were created, and a series of comparisons were conducted between the 3D segmented images from CT scans and these two 3D-printed models. Ten comparisons involving internal diameters and angles of the specific anatomical location were measured. RESULTS: The study found that the absolute mean difference in diameter between the 3D segmented images and the 3D printed models was 0.179±0.145 mm and 0.216±0.143mm, respectively, with no significant difference between the two sets of models. Additionally, the absolute mean difference in angle was 0.99±0.65° and 1.00±0.91°, respectively, and the absolute mean difference in angle between the two sets of data was not significant. Bland-Altman analysis confirmed a high correlation in dimension measurements between the 3D-printed models and segmented images. Furthermore, the accuracy of a 3D-printed femoral pseudoaneurysm model was further tested through the simulation of a superficial femoral artery pseudoaneurysm coiling procedure using the Philips Azurion7 in the angiography room. CONCLUSIONS: 3D printing is a reliable technique for producing a high accuracy 3D anatomical model that closely resemble a patient's anatomy based on CT images. Additionally, 3D printing is a feasible and viable option for use in endovascular training and medical education. In general, 3D printing is an encouraging technology with diverse possibilities in medicine, including surgical planning, medical education, and medical device advancement.
背景：三维（3D）打印技术在许多医学专业中得到了广泛应用。它是一种创新的、快速发展的技术，用于制作定制的解剖模型和医学模型，以用于医学教学、手术规划和患者教育。本研究旨在评估基于 CT 扫描的 3D 打印技术在制作股浅动脉假性动脉瘤模型以进行血管内治疗培训方面的准确性和可行性。
方法：选择一个左侧股浅动脉假性动脉瘤的病例，使用 DICOM 文件导入 Materialise Mimics 22.0 和 Materialise 3-Matic 软件创建 3D 模型，然后使用 vat 聚合技术进行打印。创建了两个 3D 打印模型，并对 CT 扫描的 3D 分割图像与这两个 3D 打印模型进行了一系列比较。测量了十个特定解剖位置的内部直径和角度的比较。
结果：研究发现，3D 分割图像与 3D 打印模型之间直径的绝对平均差异分别为 0.179±0.145mm 和 0.216±0.143mm，两组模型之间无显著差异。此外，角度的绝对平均差异分别为 0.99±0.65°和 1.00±0.91°，两组数据之间的角度绝对平均差异无显著意义。Bland-Altman 分析证实了 3D 打印模型与分割图像之间在尺寸测量方面的高度相关性。此外，通过在血管造影室使用飞利浦 Azurion7 模拟股浅动脉假性动脉瘤线圈程序，进一步测试了 3D 打印股浅动脉假性动脉瘤模型的准确性。
结论：3D 打印是一种可靠的技术，可根据 CT 图像制作高度逼真的 3D 解剖模型，该模型与患者的解剖结构非常相似。此外，3D 打印是血管内治疗培训和医学教育的可行选择。总的来说，3D 打印是一种令人鼓舞的技术，在医学领域具有广泛的应用潜力，包括手术规划、医学教育和医疗器械的发展。
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