A feasibility study on the prediction of tumour location in the lung from skin motion
A feasibility study on the prediction of tumour location in the lung from skin motion
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DOI：
10.1259/bjr/64800801
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发表时间：
2004-07-01
影响因子：
2.6
通讯作者：
Choi, E
中科院分区：
文献类型：
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作者：
Ahn, S;Yi, B;Choi, E
根据呼吸引起的皮肤运动预测肿瘤位置的系统旨在减少目标运动的影响。对肺中的34个部位和横膈中的14个部位进行了荧光透视研究，以便可以同时观察皮肤标记物和器官的运动。当患者躺在模拟器中，皮肤上有不透射线的标记时，将前后位（AP）视图和侧视图中的荧光透视图像发送到分析计算机并记录。结果显示，患者的皮肤和肿瘤运动之间存在很强的相关性（0.77 +/- 0.12），尤其是位于下肺野或横膈膜中的部位。通过皮肤运动的预测，由于呼吸运动引起的肿瘤位置的不确定性可以在上下（SI）方向上的下肺野中减少高达1.47 cm。这项研究表明，在大多数情况下（高达88%），通过观察皮肤运动可以追踪肺部肿瘤的确切位置。
The system for predicting tumour location from skin motion induced by respiration was designed to reduce the effects of target movement. Fluoroscopic studies on 34 sites in the lungs and 14 sites in the diaphragm were performed so that the motions of skin markers and organs could be observed simultaneously. While patients were lying down in the simulator with radio-opaque markers on their skin, fluoroscopic images both in the anterior-posterior (AP) view and in the lateral view were sent to an analysing computer and recorded. The results that showed a strong correlation (0.77 +/- 0.12) between the patients' skin and tumour movement, especially for the sites located in the lower lung fields or in the diaphragm. With the prediction from skin motion, the uncertainties of the position of tumours due to respiratory movement could be reduced by up to 1.47 cm in the lower lung fields in the superior-inferior (SI) direction. This study revealed that it is possible to trace the exact location of tumours in the lungs by observing skin motion in most cases (up to 88%).