中国医疗设备2017，Vol.32Issue(8)：68-71,4.DOI:10.3969/j.issn.1674-1633.2017.08.017
双能量减影技术在老年人肺部体检的应用优势
Advantage of Dual Energy Subtraction Technique in Elderly pulmonary Examination
胡伟良 1陈永红 2曹江燕 3马建人4
作者信息
- 1. 国家广播电影电视总局机关服务中心门诊部 放射科,北京 100045
- 2. 解放军二六一医院放射科,北京 100094
- 3. 解放军二六一医院特诊科,北京 100094
- 4. 解放军二六一医院医学工程科,北京 100094
- 折叠
摘要
Abstract
Objective To investigate the clinical value of X-ray digital radiography (DR) dual energy subtraction (DES) for elder people during lung examination. Methods We selected 435 cases over the age of 55 who participated in physical examination in 2016 in our hospital. All these patients underwent DES photography. The standard DR (SDR), soft tissue subtraction DR images, and bone subtraction DR images were obtained and were analyzed by a chief physician and 2 deputy chief physicians of imaging diagnosis. Results Compared with the SDR image, the DES image significantly increased the detection rate of pulmonary nodules (x2=7.212, P=0.007). If the pulmonary nodules sited in the overlap of lung tissue and rib, the image will clearer after subtraction. However, if the pulmonary nodules sited between the ribs, the image will less clear after subtraction. The detection rate of pulmonary nodules was much higher in DES image than that of SDR image in different smoking ages, but the differences were not significant. Conclusion DES technique improves the detection rate of pulmonary nodules by removing interference of ribs and reducing the effect of breathing. Therefore, this technique could be used for routinely physical examination for elderly people with smoking history.关键词
数字X线摄影/双能量减影/肺结节/DR图像/体检Key words
digital radiography/dual energy subtraction/pulmonary nodules/DR image/physical examination分类
医药卫生引用本文复制引用
胡伟良,陈永红,曹江燕,马建人..双能量减影技术在老年人肺部体检的应用优势[J].中国医疗设备,2017,32(8):68-71,4.
