title: [Assessment of regional left ventricular function with 64 multi-detector row computed tomography].
abstract: To evaluate the regional left ventricular function (LVF) and to establish the reference data of LVF parameters in the normal people with retrospective ECG gating 64-detector row CT, ten time phases in the cardiac cycle were reconstructed. Scanning was performed on 42 normal adult, and short axis images of the left ventricular were acquired. Endo-cardium and epi-cardium were delineated along with function parameters based on the cardiac analysis software. End-systolic thickness (EST) was thicker than end-diastolic thickness (EDT) (P<0.05). EDT and EST increased, but thickness decreased from apical, mid-ventricular to basal segments. Statistically significant difference was noted between mid-ventricular and basal segments (P<0.05). EDT, EST, thickness and motion of anterior, lateral and inferior segments were greater than those of septal segments in the same ventricular slices (P<0.05). 64-detector row CT could depict the regional LVF accurately. The LVF parameters of normal adults might be useful in diagnosing abnormal left ventricular function.
authors.affiliation: Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China. xiaochunzhang2001@yahoo.com.cn
authors.forename: Xiaochun
authors.initials: X
authors.lastname: Zhang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.forename: Yingkun
authors.initials: Y
authors.lastname: Guo
authors.forename: En'sen
authors.initials: E
authors.lastname: Ma
authors.forename: Tianwu
authors.initials: T
authors.lastname: Chen
authors.forename: Linlin
authors.initials: L
authors.lastname: Qian
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods; D036542:Tomography, Spiral Computed / Q000379:methods*; D016277:Ventricular Function, Left / Q000502:physiology*