Tricuspid valve regurgitation Primary parameters Mild regurgiation Moderate regurgitation Severe regurgitation PISA radius < 0,6 0,6 0,9 0,9 Vena contracta (cm…

…valve Tricuspid valve regurgitation Primary parameters Mild regurgiation Moderate regurgitation Severe regurgitation PISA radius < 0,6 0,6 0,9 0,9 Vena contracta …

…in 2D images (Figure 1). The radius of PISA can be used to calculate the diameter of the orifice. This has fundamental clinical implications as…

…other valves. The area is calculated by measuring the diameter of the valve ( area = π × radius 2 , where radius = diameter/2 ), and velocity…

…3. Pad evenly , 2–3 layers with about 50 per cent overlap, and add extra padding over bony prominences, at the ends of the cast…

…wall stress, which can be alleviated by ventricular hypertrophy and dilation: Wall stress = (Pressure LV × radius LV ) / (2 × WT LV ) LV = left ventricle;…