نتایج جستجو برای: doppler echocardiography
تعداد نتایج: 82572 فیلتر نتایج به سال:
RATIONALE Doppler echocardiography has been demonstrated to be accurate in diagnosing valvular lesions in rheumatic heart disease (RHD) when compared to clinical evaluation alone. OBJECTIVE To perform Doppler echocardiography in children clinically diagnosed by the Jones criteria to have acute rheumatic fever (ARF), and to then compare the effectiveness of echo in detecting single/multi-valvu...
We tested the hypotheses that Doppler echocardiography has a higher accuracy than clinical evaluation in the detection of significant aortic and mitral valvular heart disease and that Doppler echocardiography is highly accurate as compared with cardiac catheterization for the assessment of valvular disease severity. Thus, cardiac catheterization for the assessment of valve lesion severity may b...
OBJECTIVES We sought to test whether the ratio of peak tricuspid regurgitant velocity (TRV, ms) to the right ventricular outflow tract time-velocity integral (TVIRVOT, cm) obtained by Doppler echocardiography (TRV/TVIRVOT) provides a clinically reliable method to determine pulmonary vascular resistance (PVR). BACKGROUND Pulmonary vascular resistance is an important hemodynamic variable used in ...
In order to assess the performance of pulsed Doppler echocardiography and to examine the factors affecting its reliability for the diagnosis of ventricular septal defects, 51 patients, in whom angiographic studies had recently been performed, were investigated before and after operation by this technique. The diagnosis was correct in all cases with left-to-right shunt, when the defect was locat...
Twenty patients with ventricular septal rupture after myocardial infarction were investigated by cross sectional echocardiography with integrated pulsed and continuous wave Doppler and colour flow mapping. Confirmatory cardiac catheterisation was performed in 12 patients. Eighteen patients had surgical repair with inspection of the defect. Six patients in whom recurrent ventricular septal ruptu...
OBJECTIVES We sought to test whether the ratio of peak tricuspid regurgitant velocity (TRV, ms) to the right ventricular outflow tract time-velocity integral (TVI(RVOT), cm) obtained by Doppler echocardiography (TRV/TVI(RVOT)) provides a clinically reliable method to determine pulmonary vascular resistance (PVR). BACKGROUND Pulmonary vascular resistance is an important hemodynamic variable us...
A case of right coronary to left ventricular fistula was diagnosed by cross sectional and Doppler echocardiography. The origin and site of entry into the left ventricle of the enlarged right coronary artery were shown by cross sectional echocardiography. Diastolic flow was detected in the left ventricle by both pulsed and continuous Doppler echocardiography. The fistula was confirmed by cardiac...
In order to identify left ventricular diastolic function in patients with betathalassemia major and normal systolic function by noninvasive M-mode and Doppler echocardiography, an analytic study was designed in a university hospital in Sari. We have studied 44 patients (23 men and 21 women), mean age 15.48±2.16 (range 12 to 20) and 43 age and sex matched control subjects. Peak flow velocit...
T ransesophageal echocardiography is a relatively new ultrasonic imaging technique that has been recently introduced, and despite its infancy, it has already become an established technique. The recent development of a transesophageal transducer with the capabilities of color flow Doppler is a major advance in the assessment of many patients in whom standard transthoracic twodimensional or Dopp...
A 20-months-old infant was admitted with prolonged fever, bilateral non-purulent conjunctivitis, strawberry tongue, lip cracking and maculopapular rash. Left branch coronary aneurysm formation was detected in Color-Doppler echocardiography. The diagnosis was Kawasaki disease. After 6 weeks, he had alopecia totalis. Although, alopecia areata has been seen in Kawasaki disease, but alopecia totali...
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