title: [Detectability of rib bone lesions using dual-energy subtraction radiography].
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).
  
  
  CONCLUSIONS
  DESR can improve the detection of rib bone lesions, and is a useful supplement to DR.
authors.affiliation: Department of Radiology,Second Xiangya Hospital,Central South University,Changsha 410011,China.
authors.forename: Weijun
authors.initials: W
authors.lastname: Situ
authors.forename: Changlian
authors.initials: C
authors.lastname: Tan
mesh_terms: 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