Posted by: Johnson Francis on: 20 May, 2010
Colour Doppler echocardiogram in RHD, MR Colour Doppler echocardiogram in rheumatic heart disease (RHD), mitral regurgitation (MR). The mosaic coloured MR jet is outlined in the left atrium (LA). Ao: aorta; LV: left ventricle; RV: right ventricle. The left frame shows the apical five chamber view in diastole, while the right frame shows the apical [...]
Posted by: Johnson Francis on: 19 May, 2010
Tricuspid regurgitation jet on continuous wave Doppler Continous wave (CW) Doppler interrogation from the apical four chamber view for echocardiography across the tricuspid valve picked up this jet with a velocity of 302 cm/s and a peak gradient (PG) of 37 mm Hg. If the right atrial pressure is taken as 10 mm Hg (as [...]
Posted by: Johnson Francis on: 19 May, 2010
Myocardial contrast echocardiography (MCE) uses gas filled microbubles to image the microcirculation of the heart. The bubbles have rheological properties similar to that of red blood cells and they remain solely within the vascular tree. The bubbles are administered at an infusion rate to match the bubbles destroyed by the ultrasound energy so that steady [...]
Posted by: Johnson Francis on: 09 Apr, 2010
Post TOF repair echo in PLAX view Echocardiogram after repair of Tetralogy of Fallot (TOF) from the parasternal long axis (PLAX) view showing the hyperechoeic region of the patch which was used to close the ventricular septal defect. The aortic over-ride is no more present. Ao: aorta; RV: right ventricle; LV: left ventricle; LA: left [...]
Posted by: Johnson Francis on: 25 Mar, 2010
A shunt from the left ventricle to the right atrium can occur in three ways: (1) Defect in the atrioventricular septum between the septal attachments of the mitral and tricuspid valves (2) A perimembraneous ventricular septal defect (VSD) with associated fenestration of the septal tricuspid leaflet so that the VSD jet is partly directed from [...]
