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Pulmonary artery Doppler spectrum of the high ground and pulmonary stenosis with ventricular septal defect identification


Bit ventricular septal defect detected in only 4 cases of pulmonary turbulence (1.84%,[link widoczny dla zalogowanych], P <0.01). Single difficult to distinguish from the graphic spectrum of pulmonary ventricular septal defect and pulmonary high narrow this high ventricular septal defect in 3 patients before surgery misdiagnosed as ventricular septal defect, pulmonary valve stenosis combined with mild Second, ti artery spectrum analysis of the pulmonary artery in each group spectrum analysis, cho See sings move pay attention crossing the direction of valve stenosis with a positive contraction of the spectrum, plus or minus two-way majority f76.92%), and ventricular septal defect wave of contraction in each group were mostly negative P <0. A pair) (Table 1), three pulmonary Yong measured values of the Doppler pulmonary artery flow spectrum in each group to compare data in Table 2, Table 1 t systolic pulmonary blood flow direction of the table Note: + room with the high low compared with ventricular septal defect Harmony P (n. low and high ventricular septal defect VSD group. P <0.D 【. observed the crow s high ventricular septal defect blood flow parameters and no report of the high New low defect ventricular septal defect in the main port for direct flow to the pulmonary artery through the form of significant difference; the narrow pulmonary valve alone group, relying on the narrow right ventricular outflow tract shunt, and low ventricular septal defect shunt is to start with right ventricular defect to another group of El's RPEP, RVET, AT, PEIVET with AT / enter Asr artery ix , its velocity is relatively slow, so the lower chamber was significantly higher than that of the missing high ventricular septal defect ET group (P <0.01) less probability of pulmonary turbulence. to discuss results of this paper show that the high ventricular septal defect due to pulmonary shunt flow directly into the ultrasonic pulse and more pulmonary blood flow Doppler spectrum cho provide real-time clock. The main direction of departure from the probe; pulmonary stenosis after narrow while those of heart disease as an important diagnostic information. Feng pulmonary artery Doppler systolic vortex, the direction of flux flow, lung turbulence alone, although the patient's pulmonary blood flow is the basis for evaluation of pulmonary artery stenosis ¨, but the spectral parameter is greater than the high ventricular septal defect group, reflecting the negative pressure pulmonary independent RV there, according to reports in the literature to fill in the spectrum of pulmonary artery systolic g also the status of a load too heavy, and high ventricular septal defect in the pulmonary artery preserved: the value of its fixed flow side of the ductus Wing. atrial septal defect, ventricular septal defect and other cases in which it is similar type of ventricular septal defect. This study suggests that the spectrum analysis is help to pulmonary artery stenosis with high pulmonary ventricular septal defect turbulence in the high incidence of ventricular septal defect and pulmonary relying on the differential diagnosis, especially for products I】 ventricular septal defect area is high, high ventricular septal defect in the pulmonary artery systolic turbulent than any other type of sound and mild pulmonary seedlings have some practical value, Mount lack of clinical signs despite c. x-ray examination room helps high
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