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. 2014 Sep 15;1(1):e000136. doi: 10.1136/openhrt-2014-000136

Figure 3.

Figure 3

Measurement of the mitral leaflet opening angle. The leaflet opening angle between the anterior or posterior mitral leaflet base and annular line was measured in early diastole using a two-dimensional long-axis view of the mitral valve extracted from the three-dimensional data set.