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虽说摸拟定位机已进入临床应用。但在国内尚未普及,我们利用直角三角形的几何原理,借助普通X线诊断机在一张X光片上拍摄双重食管影像的方法,解决了食管癌交角布野定位的问题,临床应用1200例,效果满意,方法如下: 1.首先在透视下直接标出胸前后背部垂直野的纵横中心交点(这里的背部野仅作计算交叉野旁开距和布交叉野时参考用)。 2.置患者于摄影床上,a平躺仰卧、紧贴背部放一装有X光胶片的暗盒。然后(以
Although the simulation positioning machine has entered clinical applications. However, it has not been popularized in our country. We use the principle of right-angled triangle to take double esophageal images on an X-ray film with a common X-ray diagnostic machine to solve the problem of angular positioning of esophageal cancer. The clinical application of 1200 cases is satisfactory , The method is as follows: 1. First of all, under the perspective of direct vertical and horizontal back chest chest vertical and horizontal center intersection (where the back field only for the calculation of the cross-side margin and cloth cross-field reference). 2. Set the patient in the photographic bed, a lying supine, close to the back put a cassette containing X-ray film. Then (with