title: The diagnostic evaluation of dual-source CT (DSCT) in the diagnosis of coronary artery stenoses.
abstract: OBJECTIVE
  To evaluate the diagnostic accuracy of dual-source computed tomography (DSCT) in the diagnosis of coronary artery stenoses by comparing with conventional coronary angiography (CCA).
  
  
  METHODS
  CCA and DSCT were performed in 64 patients with suspected coronary artery disease (CAD) respectively (46 male, 18 female, age from 48 to 82 years old, mean 68.18 years). Various post-processing reconstructions of coronary artery and its branches, such as volumetric imaging, multi-planar reconstruction, curved planar reconstruction, maximum intensity projection were used. The coronary segments, with statistical evaluations combined with its diameter ≥1.5mm were collected to analyze the diagnosis accuracy of DSCT on coronary artery stenoses, with CCA as the gold standard.
  
  
  RESULTS
  About 4.14% of coronary artery segments could not be evaluated, while 95.86% were evaluable arteries, the sensitivity, specificity, positive and negative predictive value of DSCT for detecting coronary artery stenoses were, 93.58%, 99.61%, 95.31% and 99.48% respectively. There were no significant differences in the diagnostic accuracy of coronary artery stenoses between DSCT and CCA.
  
  
  CONCLUSIONS
  DSCT is a reliable tool that is accurately appropriate for patients with CAD, as it has a higher accuracy and specificity, which is valuable in the screening of CAD.
authors.affiliation: Ziqiao Lei, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Ziqiao
authors.initials: Z
authors.lastname: Lei
authors.affiliation: Jin Gu, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Gu
authors.affiliation: Qing Fu, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Fu
authors.affiliation: Heshui Shi, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Heshui
authors.initials: H
authors.lastname: Shi
authors.affiliation: Haibo Xu, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Haibo
authors.initials: H
authors.lastname: Xu
authors.affiliation: Ping Han, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Han
authors.affiliation: Jianming Yu, Department of Radiology, Union Hospital, Wuhan, China.
authors.forename: Jianming
authors.initials: J
authors.lastname: Yu
keywords: Computed tomography; Coronary angiography; Coronary artery stenoses; Dual-source CT