正确的体位和准确的选层是体层摄影的关键技术。通过对正常人和肺疾患病人照片的分析测量,我们对常规的侧后倾斜体层摄影(通常称为侧后双倾斜位摄影)的方法进行了改进。采用几种简单的方法作侧后单倾斜体层摄影,使胸部体层片达到了满意的效果。方法　采用日本东芝公司ＬＧＳ-2 Correct posture and accurate layer selection is the key technology of tomography. By analyzing and measuring photographs of patients with normal and lung conditions, we have improved our method of conventional posterior oblique tomography (commonly referred to as lateral double oblique photography). Using several simple methods for lateral single-tilt tomography, the chest slice to achieve satisfactory results. Methods Toshiba Japan LGS-2