[Detectability of rib bone lesions using dual-energy subtraction radiography].
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).


CONCLUSIONS
DESR can improve the detection of rib bone lesions, and is a useful supplement to DR.
Situ
Weijun
W
Department of Radiology,Second Xiangya Hospital,Central South University,Changsha 410011,China.
Tan
Changlian
C
D000293:Adolescent; D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015900:Radiography, Dual-Energy Scanned Projection / Q000379:methods*; D012189:Retrospective Studies; D012253:Rib Fractures / Q000000981:diagnostic imaging*; D012272:Ribs / Q000000981:diagnostic imaging*; D055815:Young Adult