Evaluation and extension of a navigation system for bronchoscopy inside human lungs
Evaluation and extension of a navigation system for bronchoscopy inside human lungs
复制标题
人肺内支气管镜导航系统的评估和扩展
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
H. Meinzer
中科院分区：
文献类型：
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作者：
I. Wegner;J. Biederer;R. Tetzlaff;I. Wolf;H. Meinzer
为了在气管支气管树内精确定位，临床医生迫切需要一种用于支气管镜检查的导航系统。这种图像引导系统具有显示气管支气管树内的支气管镜（检查肺内部的仪器）的当前位置的能力。因此，改进了复杂树结构内部的定向。我们的导航支气管镜检查方法考虑了使用静态图像在不断移动的软组织内导航的问题。它提供了一个直接的指导，以预先定义的支气管树内的目标，以节省干预时间花在寻找正确的路径，并尽量减少麻醉的持续时间。它的设计是为了适应患者的呼吸周期，所以没有进一步的干预，以尽量减少肺的运动必须强调的病人。我们提出了一种新开发的导航传感器，允许显示虚拟支气管镜在真实的时间，我们证明了一个非移动的离体肺体模内的准确性评价。
For exact orientation inside the tracheobronchial tree, clinicians are in urgent need of a navigation system for bronchoscopy. Such an image guided system has the ability to show the current position of a bronchoscope (instrument to inspect the inside of the lung) within the tracheobronchial tree. Thus orientation inside the complex tree structure is improved. Our approach of navigated bronchoscopy considers the problem of using a static image to navigate inside a constantly moving soft tissue. It offers a direct guidance to a preinterventionally defined target inside the bronchial tree to save intervention time spent on searching the right path and to minimize the duration of anesthesia. It is designed to adapt to the breathing cycle of the patient, so no further intervention to minimize the movement of the lung has to stress the patient. We present a newly developed navigation sensor with allows to display a virtual bronchoscopy in real time and we demonstrate an evaluation on the accuracy within a non moving ex vivo lung phantom.