ABSTRACT
1. ③Higher examining rate of Ar wave was detected in acute phase in KD. ④V D was improved reversibly in convalescence phase. ⑤MVF showed that only E/A in acute phase in KD was lower than that of normal group. Conclusions It is available and valuable to combine PVF and MVF to assess left ventricular diastolic function in KD.
ABSTRACT
106 cases of fetal heart was examinated by M-mode Cross-sectional and Pulsed Doppler echocardiography from 1987. 1～1988. 4. The gestational age was 16～ 40 weeks. We found some features in these cases:(1)The right heat was bigger than the left heart; (2)The aorta was the same as that pulmonary artery; (3) The atriums, ventricles and the great vessels enlarged with gestational age; (4) The tricuspid velocity was faster than the mitral velocity but the puhmonary velocity was slower than the aortic veloci- ty ; (5)The size of the foramen ovale was 3～5mm.Finally, the authors suggest that in order to find some congenital heart malformations and manage these cases as early as posible ultrasonic routine examination should be performed in the mid period of pregnancy, particularly at high risk obstetric clinic. The method was also discussed.
ABSTRACT
The article reports the echocardiographic manifestations of the inferior vena cava (IVC). The normal IVC M-mode echocardiogram appeared which has "a" and "V" waves similar to the jugular venous tracting and exhibits Prominent periodic respiratory changes. In right heart failure, tricuspid regurgitation and constrictive pericarditis, the IVC was usually distended with diminished or absented respiratory coUapse. The specific patterns of the M-mode IVC tracting could be observed during various dysrhythmias. For instance, the "a" wave disaPeared in atrial fibrillation and atrial flutter or showed "common "a" waves from patients with complete heart block, while in chronic cor-pulmonale the "a" wave was increased but the period was short. There were not any changes in an overloaded right ventricular volume and various pericarditis with effusion. The results indicate that the "a" wave reflects the right atrium contraction.The IVC is frequently involved by abdominal and retroperitoneal diseases. Thus, it is greatly helpful to evaluate the course of IVC in determining the origin of an adjacent mass.