Detectability of rib bone lesions using dual-energy subtraction radiography / 中南大学学报(医学版)

ABSTRACT

OBJECTIVE@#To assess the value of dual-energy subtraction radiography (DESR) in the detection of rib bone lesions.@*METHODS@#The images of DESR and digital radiography (DR) in 66 patients with 118 rib bone lesions were reviewed. The detectability of DESR and DR in the rib bone lesions was analyzed by receiver operating characteristic (ROC) method, and their detection rates were compared in different thoracic regions such as those overlaid with the diaphragm and the mediastinum, located in the region of midaxillary line,and the rest.@*RESULTS@#In the detection of rib bone lesions, the area under ROC curve in the DESR group (Az=0.946) was significantly larger than that in the DR group (Az=0.755). In different regions of the rib lesions, the detection rates of DESR were significantly larger than those of DR (P<0.05).@*CONCLUSION@#DESR can improve the detection of rib bone lesions, and is a useful supplement to DR.