人体血管三维可视化

目的:探讨用羧甲基纤维素-氧化铅作填充剂的灌注技术在血管造影及血管的三维可视化的可行性。方法:应用羧甲基纤维素作为氧化铅造影剂的载体,配制成羧甲基纤维素-氧化铅填充剂,选择人体新鲜标本,进行全身动脉灌注,然后进行普通X线摄片和CT扫描。结果:标本经X线扫描可得到清晰的动脉成像。以0·625mm层距行CT连续扫描显示:动脉及大分支显影均匀,血管影像无"毛刺"、"空泡"等现象。利用Mimics 10·01获得非常清晰的血管三维重建图像,边缘光滑、层次分明。结论:以羧甲基纤维素-氧化铅作填充剂的灌注技术可使X线摄影和CT扫描在标本上获得高质量的血管影像。此法简便易行,可为标本血管三维重建提供理想技术支持基础。

3D visualization of human blood vessel by angiography

Objective: To evaluate the 3D visualization of human blood vessel by Mimics software using perfusion with mixture of carboxymethyl cellulose and lead oxide into whole cadaver.Methods: The fresh cadavers injected with the mixture carboxymethyl cellulose and lead oxide were imaged using a spiral computed tomography scanner. The computed tomography data were transferred to DICOM format and imported to a PC. Three-dimensional reconstructions of various parts of the body were then performed using Mimics software.Results: 3D visualization of various parts of the body was obtained. The bone, soft tissue, skin, and vascular strutures were shown in a layer by layer transparent process. The detailed views of the microvasculature provide extensive information regarding the course of vessels in all layers of tissue. There were no barbs and vacuoles of blood vessel image and so on. Applying Mimics 10.01 the 3-dimensions reconstruction images of blood vessel were clear with smooth margins and clear layers.Conclusion: Perfusion with mixture of carboxymethyl cellulose and lead oxide is helpful to release the complex vasculature on X-ray photograpy and CT images, so it can applied as a feasible and easy method for 3D reconstrucition of blood vessels.