Effectiveness of Application of the Pulmonary Artery Flow Spectrum Features in Diagnosis of TOF Fetuses
ZHANG Xiao-hong1, SUN Dong-sheng2, WANG Hai-yan1, LIU Chuan-xi3
1. Department of Ultrasound, Qianfoshan Hospital Affiliated to Shandong University, Jinan Shandong 250014, China; 2.Department of Ultrasound, Zhangqiu Hospital of Chinese Traditional Medicine, Zhangqiu Shandong 250200, China; 3. Department of Internal Medicine, Shandong Provincial Hospital, Jinan Shandong 250021, China
Abstract：Objective To analyze the effectiveness of application of the pulmonary artery flow spectrum features in diagnosis of TOF (Tetralogy of Fallot) fetuses. Methods Altogether 21 cases of TOF fetuses with pulmonary artery dysplasia were taken as Experiment Group; while, 46 cases of healthy fetuses in the similar pregnant weeks were selected as Control Group. The inner diameters of pulmonary arteries and the main pulmonary artery flow spectrum were measured in both groups. Results The features of the main pulmonary artery flow spectrum revealed in Experiment Group included shorter ACT (Acceleration Time), DT (Deceleration Time), ET (Ejection Time) and smaller VTI (Velocity-Time Integral) than those of Control Group, which were of statistical significance (P<0.01); moreover, the increased peak flow velocity and percentage between PVmax (Pulmonary Velocity Maximum) and AVmax (Artery Velocity Maximum) also showed statically significant differences between two groups (P<0.01). Compared to control group, the AVmax increased unobviously in experiment group and the difference was not significant (P=0.22>0.05). Conclusion The pulmonary artery flow spectrum of TOF fetuses could demonstrate its characteristic features and provide foundations for diagnosis of the disease.
仉晓红，孙东生，王海燕，刘传玺. 肺动脉血流频谱特征在胎儿法洛四联症诊断中的应用价值[J]. 中国医疗设备, 2015, 30(5): 36-39.
ZHANG Xiao-hong, SUN Dong-sheng, WANG Hai-yan, LIU Chuan-xi. Effectiveness of Application of the Pulmonary Artery Flow Spectrum Features in Diagnosis of TOF Fetuses. China Medical Devices, 2015, 30(5): 36-39.
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