数字化双能量减影技术在胸部肺结节及结节内钙化诊断中的应用价值  

Clinical Evaluation of Pulmonary Nodules and Calification in Nodules with Dual-energy Subtraction Digital Radiography

作　　者：罗清[1] 张国华[1] 

机构地区：[1]无锡市第二人民医院放射科,江苏无锡214002

出　　处：《实用放射学杂志》2006年第1期30-32,共3页Journal of Practical Radiology

摘　　要：目的评价数字化双能量减影技术在肺结节及结节内钙化诊断中的临床价值。方法使用美国GE公司Revolution DR-XR/d数字化摄影系统,为80例患者行胸部双能量摄片,将所获得的3幅图像(肺组织像、肋骨像、原像)进行对比分析。结果经CT证实的186个结节中,减影像共检出肺内结节126个(其中含钙化结节32个,无钙化结节94个);原像共检出肺内结节109个(其中钙化结节26个,无钙化结节83个);两者相比较,减影像对病灶显示更敏感。结论减影像在检出肺内结节及结节内钙化等方面有明显优势,可作为原像的重要补充。Objective To evaluate the clinical value of dual-energy subtraction digital radiography in diagnosing the pulmonary nodules and calification in nodules . Methods Using American GE Revolutln DR-XR systems , All 80 patients were examined by dual-energy . Tissus images,bone images and the original digital radiographic images were obtained. Dual-energy digital subtraction images were compared with the original digital radiographic images. Results Of 186 pulmonary nodules proved by CT , 126（94 uncalified and 32 calified ） were detected by tissues images and bone images and 109 （83 uncalified and 26 calitied）were detected by the original digital radiographic images. Conclusion Dual-energy subtraction imaging is superior to the original digital radiographic images in detection of pulmonary nodules and calification in a nodule, Dual-energy subtraction images can act as a complement for the original digital radiographic images.

关 键 词：双能量减影 数字X线摄影 肺内结节 

分 类 号：R563[医药卫生—呼吸系统] R814.42[医药卫生—内科学]