title: ECG-gated pulmonary artery CTA for evaluation of right ventricular function in patients with acute pulmonary embolism.
abstract: OBJECTIVE
  To evaluate right ventricular function in patients with acute pulmonary embolism (APE) using electrocardiogram-gated CTA and to discuss the clinical value of pulmonary artery CTA PATIENTS AND METHODS: Based on death risk evaluation, 86 APE patients were divided into high-risk group (n=46) and non-high-risk group (n=40). The CT pulmonary embolism (PE) index and parameters of right ventricular function were analyzed from the CTPA images and compared between the two groups. Potential correlation between the two was also discussed.
  
  
  RESULTS
  CT PE index (median 24.69%) of the high-risk group was obviously higher than that of the non-high-risk group (median 8.58%) (P<.05). Except the diameter of superior vena cava, all other parameters of right ventricular function were significantly different between the two groups (P<.05). CT PE index was correlated with the parameters of right ventricular function.
  
  
  CONCLUSIONS
  ECG-gated pulmonary artery CTA is suitable for assessing the severity of APE and right ventricular function.
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Liang
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: De-Li
authors.initials: DL
authors.lastname: Zhao
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Xin-Ding
authors.initials: XD
authors.lastname: Liu
authors.affiliation: Radiology Department of the Fourth Hospital of Harbin, Harbin, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Chen
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Hai-Ting
authors.initials: HT
authors.lastname: Zhou
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Cheng-Lei
authors.initials: CL
authors.lastname: Zhao
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Guo-Kun
authors.initials: GK
authors.lastname: Wang
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Mei-Ling
authors.initials: ML
authors.lastname: Xu
authors.affiliation: Department of CT, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
authors.forename: Jin-Ling
authors.initials: JL
authors.lastname: Zhang
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000072226:Computed Tomography Angiography / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging / Q000503:physiopathology; D011655:Pulmonary Embolism / Q000150:complications*; D012372:ROC Curve; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018497:Ventricular Dysfunction, Right / Q000150:complications* / Q000000981:diagnostic imaging* / Q000503:physiopathology; D055815:Young Adult
keywords: angiography; pulmonary embolism; right ventricular function; x-ray computed