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目的:将显示血管等结构的三维重建方法与传统的解剖学方法进行比较,评价其优劣。方法:新鲜成人下肢标本各2侧,分别从动脉与静脉灌注显影剂,CT扫描后利用三维软件进行分割与重建;解剖扫描后的标本,分别显示其血管系统。将三维图形与标本照片进行比较。结果:利用三维软件可分割与重建出独立的骨、血管、皮肤、肌肉,所重建的图形可以分别单独显示,也可以组合显示。可从不同角度与层面观察血管的走行、分布、吻合等情况,但有显示误差,不适合数据采集。剥制标本上可清晰地观察到血管系统,可观察任一支血管的来源、走行、分布与吻合等情况,可以进行数据测量,但不能同时显示多层结构。结论:血管灌注结合三维重建的方法对于观察人体血管的三维状态、不同角度与不同层面的走行与分布具有优势,但不能完全替代传统的剥制标本。
OBJECTIVE: To compare the three-dimensional reconstruction method of displaying blood vessels and other traditional anatomical methods to evaluate the advantages and disadvantages. Methods: Two sides of fresh adult lower extremity specimens were perfusion with contrast agent from artery and vein respectively. After CT scan, three-dimensional software was used to segment and reconstruct the specimens. Anatomical scanning specimens were taken to show the vasculature respectively. Compare 3D graphics with specimen photos. Results: Three-dimensional software can be used to segment and reconstruct independent bone, blood vessel, skin and muscle. The reconstructed images can be displayed separately or in combination. Blood vessels can be observed from different angles and levels of walking, distribution, anastomosis, etc., but the display error, not suitable for data collection. Peeling specimens can be clearly observed on the vascular system, can be observed in any source of blood vessels, walking, distribution and anastomosis, etc., can be measured data, but can not simultaneously show the multi-layer structure. Conclusion: The method of vascular perfusion combined with three-dimensional reconstruction has the advantages of observing the three-dimensional state of human blood vessels, walking and distribution at different angles and different levels, but can not completely replace the traditional stripping specimens.