摘要
在胸部X线平片上肋骨、心影、锁骨等和肺组织重叠,严重的影响了肺部疾病的诊断。本研究使用电子计算机通过对各遮盖面积的精确测定,得出肺野有62％被肋骨遮盖;心影和肺重叠区占肺野面积的17.1％。肺野共有79.1％的面积被各种结构遮盖。所以,适度地降低肋骨的遮盖是提高胸片信息量的重要途径。
Areas of overlying structure were measu-red with electronic computer of ASM 68k in339 chest radiographs which were selected from two ?e s obtain d from both south andnorth China. The results showed that 79.1%of area of pulmonary parenchyma were obsc-ured by bone (rib and clavicle) and heart to-tally.
出处
《中国工业医学杂志》
CAS
1992年第3期137-139,共3页
Chinese Journal of Industrial Medicine
关键词
胸部
X线平片
肺野遮盖面积
chest radiographs
quality assurance
area of overlying structure
