共查询到18条相似文献,搜索用时 62 毫秒
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【目的】运用三维重建和3D打印技术构建比格犬的肝脏三维模型,为犬的肝脏疾病诊疗和相关手术提供三维数据和形态学依据,同时为实验动物的减量使用及提升动物福利奠定基础。【方法】选取1只8月龄、体重14.5 kg的健康雌性比格犬,全身麻醉后静脉注射碘海醇,通过128层螺旋电子计算机断层扫描(computed tomography, CT)对犬的肝脏进行二维图像数据采集,随后利用IPS软件进行数字化分割和三维重建,并使用Touch Viewer软件对图像进行测量。将重建数据传送至3D打印机,逐个生成门静脉、肝静脉、肝动脉等组织的3D打印模型,经上色、图层优化和拼装处理后,最终获得犬的肝脏3D物理模型。【结果】运用CT增强造影数据构建的肝脏三维重建模型形态逼真、立体感强,可在三维空间内进行任意缩放、角度旋转,并可通过调整阈值进行平面映射,形成各部位的切面或单独显示肝动脉、肝静脉、门静脉以及胆管的走向与分布,便于观察各脉管结构的空间位置,展示复杂的肝脏局部解剖结构。Touch Viewer测量结果显示,肝脏体积为556.14 mL,表面积为600.85 cm2,胆囊体积为12.... 相似文献
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在医学生的学习临床知识中通常是通过病例来进行研究的,但是这一点存在着缺陷——在这一过程是看不到实体.此时,仅模仿表面是远远不够的,并且也不能达到直观效果.如果需要快速制造出满足不同相应需求的组织和器官等,可以利用3D打印技术来完成自己所需要的结构.3D打印技术除了能够快速地完成自己所需求的物质结构,而且在微观结构进行精... 相似文献
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随着信息科技的发展,近年来一批新技术的出现为人们的生活和发展带来了极大的便利,相应的,每个时代的教育都应该适应所处的时代,教育的内容要与生产力的发展相适应甚至是超越生产力的发展,因此在考虑教学内容和教育方法创新的时候,可以结合现阶段的新兴科学技术进行教学反思与创新.结合3D打印技术与计算机编程,能够将过理论化的知识转化... 相似文献
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M. P. Cecchini M. Parnigotto F. Merigo P. Marzola A. Daducci S. Tambalo F. Boschi L. Colombo A. Sbarbati 《Anatomia, histologia, embryologia》2014,43(3):239-244
The morphology and the functionality of the murid glandular complex, composed of the submandibular and sublingual salivary glands (SSC), were the object of several studies conducted mainly using magnetic resonance imaging (MRI). Using a 4.7 T scanner and a manganese‐based contrast agent, we improved the signal‐to‐noise ratio of the SSC relating to the surrounding anatomical structures allowing to obtain high‐contrast 3D images of the SSC. In the last few years, the large development in resin melting techniques opened the way for printing 3D objects starting from a 3D stack of images. Here, we demonstrate the feasibility of the 3D printing technique of soft tissues such as the SSC in the rat with the aim to improve the visualization of the organs. This approach is useful to preserve the real in vivo morphology of the SCC in living animals avoiding the anatomical shape changes due to the lack of relationships with the surrounding organs in case of extraction. It is also harmless, repeatable and can be applied to explore volumetric changes occurring during body growth, excretory duct obstruction, tumorigenesis and regeneration processes. 3D printing allows to obtain a solid object with the same shape of the organ of interest, which can be observed, freely rotated and manipulated. To increase the visibility of the details, it is possible to print the organs with a selected zoom factor, useful as in case of tiny organs in small mammalia. An immediate application of this technique is represented by educational classes. 相似文献