Computed tomography and transthoracic echocardiography for assessment of left ventricle geometry in patients with aortic valve stenosis

Figures

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  Figure 1. Transthoracic echocardiography images showing performed measurement: end-diastolic LV diameter in parasternal long-axis (A), major and minor dimensions of LV in four-chamber view (B), major LV axis in three-chamber view (C); distance between heads of left ventricular papillary muscle in parasternal short axis view (D), LV ejection fraction assessed using the biplane Simpson method - end-diastole view in four-chamber (E), LV ejection fraction assessed using 3D triplane analysis (F) LV – left ventricle, RV – right ventricle, LA – left atrium, RA – right atrium.

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  Figure 2. Blood pool left ventricle 3D reconstructions (end-diastole) segmented from contrast enhanced computed tomography of the heart with marked measured dimensions (Mimics Innovation Suite 22, Materialise): a plane formed by the apex of the LV and the inter-commissural mitral annulus diameter (A), LV major dimension (B), formation of a perpendicular plane in the middle of the LV major axis (C, D), perpendicular dimension to inter-commissural mitral annulus diameter (black narrow) and parallel dimension to inter-commissural mitral annulus diameter (LV minor dimensions) (white narrow) (E), LV width at papillary muscle head level (F)