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将鼻饲管插入空肠附近位置时,通常是在荧光显示导引下进行的。为了减少工作人员和病人的受照剂量,研究提出,如允许适当降低图像指标,则通过改变荧光显示参数可显著减少工作人员和病人的剂量。只有当鼻饲管金属末端定位在相应解剖位置时,才需要有高质量图像。
When the nasogastric tube is inserted near the jejunum, it is usually guided by a fluorescent display. In order to reduce the exposure of workers and patients, studies have suggested that by changing the parameters of fluorescence display, the dosage of workers and patients may be significantly reduced if the image indexes are allowed to be appropriately reduced. Only when the end of the nasogastric tube is positioned at the corresponding anatomical location requires high quality images.