title: [Clinical value of ECG-gated dual-source computed tomography and angiography in assessing pulmonary atresia with ventricular septal defect].
abstract: The purpose of this study is to explore the clinical value of ECG-gated dual-source CT angiography (DSCTA) in evaluating pulmonary atresia with ventricular septal defect (PA-VSD). We carried out retrospective analysis on 20 patients who had DSCTA with PA-VSD. The emphasis of the work was on analyzing the types of PA-VSD, pulmonary artery development, major aorto-pulmonary artery collateral arteries (MAPCAs) and associated intra- and extra-cardiac malformations. In the 20 cases of PA-VSD, there were 6 cases of type A , 13 cases of type B, and 1 case of type C. 12 cases of the patients had patent ductus arteriosus (PDA). The pulmonary blood flow was mainly supplied by PDA in 6 cases and by MAPCAs in the rest of 14 cases. The diameter of MAPCAs was (7.2 +/- 3.4) mm (range, 2.0-14.3 mm). The experiments proved that ECG-gated DSCTA was a convenient and noninvasive cardiovascular imaging method, and it could accurately evaluate the types of PA-VSD, pulmonary artery development, MAPCAs, and it could also provide detailed anatomic information before surgery.
authors.affiliation: Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
authors.forename: Long
authors.initials: L
authors.lastname: Zhao
authors.forename: Liqing
authors.initials: L
authors.lastname: Peng
authors.forename: Jianqun
authors.initials: J
authors.lastname: Yu
authors.forename: Qi
authors.initials: Q
authors.lastname: An
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging; D000293:Adolescent; D000328:Adult; D000792:Angiography / Q000379:methods*; D055424:Cardiac-Gated Imaging Techniques / Q000379:methods*; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D008297:Male; D018633:Pulmonary Atresia / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult
chemical_list: D003287:Contrast Media