| 摘要 |
PURPOSE: A stent marker is provided to recognize the tumor position variation directly according to respiration in the tumor treatment using the radiation therapy. CONSTITUTION: A stent includes more than one marker(20) which enables the radiation therapy system to recognize the tumor position variation accurately from patient' movement. The markers are used for the position recognition, are embedded and installed to prevent the friction damage of organs when the markers are inserted into the digestive organ such as the gullet, stomach, large intestine, duodenum and the like. The stent can be made into a shape that can be inserted into the digestive organ. |
