Technical considerations and the instrumentation used for pediatric two-dimensional echocardiography and Doppler examination are reviewed. The configurations of sector scanners, the function of the mechanical versus phased array systems and considerations related to lateral, axial and azimuthal resolution requirements are discussed. The performance and requirements for echocardiographic cardiog...

BACKGROUND Previous studies indicate that compared with physical examination, Doppler echocardiography identifies a larger number of cases of rheumatic heart disease in apparently healthy individuals. OBJECTIVES To determine the prevalence of rheumatic heart disease among students in a public school of Belo Horizonte by clinical evaluation and Doppler echocardiography. METHODS This was a cr...

the turkmen horse is one of the oldest and purest breeds in the world. there is no information with regards to the normal echocardiographic parameters of this horse regarding to cardiac diseases. pulsed-wave (pw) doppler echocardiography was performed on 42 clinically normal 3- to 15-year-old racing turkmen horses. there were 26 stallions and 16 mares. the left ventricular isovolumetric contrac...

The value of transesophageal pulsed Doppler echocardiography (PDE) was studied in six patients with competent mitral valve and in 12 patients with angiographically proved mild to moderately severe mitral regurgitation. The results were compared with those from the standard transthoracic method of investigation. The advantages of the esophageal over the transthoracic approach in the detection of...

Doppler echocardiography (DE) is known to be a valuable tool for detecting subclinical forms of valvular regurgitation (VRJ in theacutephase of rheumatic fever (RF). Previous studies have mostly dealt with the acute phase problem with only short-term follow-up. In this study, 24 children between 4-15 years of age (mean age II.X±2.7 years) with RF without clinically diagnosed carditis (most ...

Takayasu arteritis is rare in black people. Doppler echocardiography may assist in its diagnosis with good response to steroids.

OBJECTIVES This study was conducted to assess the diagnostic role of Doppler echocardiography in constrictive pericarditis. BACKGROUND It has been observed that patients with constrictive pericarditis have a characteristic Doppler pattern of respiratory variation in ventricular filling and central venous flow velocities. However, the observation was based on a small number of patients with kn...