title: Three-dimensional reconstruction of coronary arteries and its application in localization of coronary artery segments corresponding to myocardial segments identified by transthoracic echocardiography.
abstract: OBJECTIVE
  To establish 3D models of coronary arteries (CA) and study their application in localization of CA segments identified by Transthoracic Echocardiography (TTE).
  
  
  METHODS
  Sectional images of the heart collected from the first CVH dataset and contrast CT data were used to establish 3D models of the CA. Virtual dissection was performed on the 3D models to simulate the conventional sections of TTE. Then, we used 2D ultrasound, speckle tracking imaging (STI), and 2D ultrasound plus 3D CA models to diagnose 170 patients and compare the results to coronary angiography (CAG).
  
  
  RESULTS
  3D models of CA distinctly displayed both 3D structure and 2D sections of CA. This simulated TTE imaging in any plane and showed the CA segments that corresponded to 17 myocardial segments identified by TTE. The localization accuracy showed a significant difference between 2D ultrasound and 2D ultrasound plus 3D CA model in the severe stenosis group (P < 0.05) and in the mild-to-moderate stenosis group (P < 0.05).
  
  
  CONCLUSIONS
  These innovative modeling techniques help clinicians identify the CA segments that correspond to myocardial segments typically shown in TTE sectional images, thereby increasing the accuracy of the TTE-based diagnosis of CHD.
authors.affiliation: Department of Ultrasound, Southwest Hospital, Third Military Medical University, Chongqing, China.
authors.forename: Chunyan
authors.initials: C
authors.lastname: Zhong
authors.affiliation: Department of Ultrasound, Southwest Hospital, Third Military Medical University, Chongqing, China.
authors.forename: Yanli
authors.initials: Y
authors.lastname: Guo
authors.affiliation: Department of Ultrasound, Southwest Hospital, Third Military Medical University, Chongqing, China.
authors.forename: Haiyun
authors.initials: H
authors.lastname: Huang
authors.affiliation: School of Basic Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Liwen
authors.initials: L
authors.lastname: Tan
authors.affiliation: School of Basic Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Ultrasound, Southwest Hospital, Third Military Medical University, Chongqing, China.
authors.forename: Wenting
authors.initials: W
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000473:pathology; D004452:Echocardiography; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D009206:Myocardium / Q000473:pathology; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed