[Assessment of regional left ventricular function with 64 multi-detector row computed tomography].
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.
Zhang
Xiaochun
X
Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China. xiaochunzhang2001@yahoo.com.cn
Li
Yuan
Y
Guo
Yingkun
Y
Ma
En'sen
E
Chen
Tianwu
T
Qian
Linlin
L
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*