为探查胸部异物之位置,曾用过各种方法,共中如 X 光立体透视,此法须要相当复杂器械,能转移部位制或照片,而不是普通的 X 光设备所能施行的。用 X 光照两个互相垂直之像时不仅耗费胶片,且不能明确的照出深部异物之位置。最广泛的是用多轴方透视及转移方向透视之方法,施行此法时 In order to explore the location of chest foreign body, various methods have been used, such as X-ray three-dimensional fluoroscopy, this method requires a rather complex apparatus, can transfer parts or photos, rather than the normal X-ray equipment can be implemented. Using X-rays to photograph two mutually perpendicular images consumes not only the film but also the location of the deep foreign objects. The most widespread is the method of multi-axis fluoroscopy and the direction of the transfer of perspective, the implementation of this method