Difference in Detection of Simulated Chest Nodules in Different Lung Fields with Dual-Energy Digital Subtraction Chest Radiography (A ROC Study)
- VernacularTitle:双能量数字减影胸片对于不同肺野区域内结节性病变的检出差异(ROC分析)
- Author:
Xuemei GUO
;
Luxin SONG
;
Xuesong XIE
;
Xuexiang JIANG
- Publication Type:Journal Article
- Keywords:
dual-energy;
digital subtraction;
digital radiography;
chest nodules;
receirer operating characterstic curve
- From:
Journal of Practical Radiology
2001;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the difference in detection of simulated chest nodules in different lung fields with dual-energy digital subtraction chest radiography by receive operating characteristic curve (ROC) analysis.Methods Dual-energy digital subtraction chest radiography was performed on 20 volunteers with simulated chest nodules. ROC analysis was made in the evaluation results on regular DR images and soft tissue images in different lung fields respectively.Results Az was greater on the soft tissue images than on the regular DR images in the superior lung fields and outer zone of middle lung fields. There were significant differences in the superior lung fields and outer zone of middle lung fields.Conclusion Dual-energy digital subtraction chest radiography is superior to regular DR image on detecting more chest nodule lesions, especially in the superior lung fields and outer zone of middle lung fields. So the two techniques should be united to diagnose.
