Development of CT needle aspiration navigation system using multi-slice CT fluoroscope

CT透视技术和多层CT扫描技术的发展，使我们能够进行多层CT扫描。然而，目前使用的多显示器方法很难立即识别出针尖的三维位置，因为我们无法同时观察多个图像。为了克服这一问题，我们开发了一种新的彩色显示方法和多层CT透视针吸辅助系统。除此之外，我们还利用投影映射技术开发了新的显示方法。它是切片投影映射。采用彩色显示法和切片投影映象法，可进行CT吸针，精度高，安全性高，对患者和操作者的辐射剂量低。

Developments in CT fluoroscope technology and multi slice CT scanning have enabled us to conduct CT scanning in multi sections. However, the current method used with multiple displays makes it difficult to recognize the needle point's three-dimensional location instantly, because we are unable to observe multiple images simultaneously. To overcome this problem, we have developed a new color display method and needle aspiration assistance system for multi slice CT fluoroscope. In addition to this, we have developed the new display method by using projection mapping technique. It is slice projection mapping.By using color display method and slice projection mapping method, we could carry out the CT needle aspiration with high accuracy, high safety and low radiation dose of the patient and the operator.