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Figure 2b: (a) Oblique CT image through long axis of LV and LA during systole (at 5% of the R-R interval) in 53-year-old man shows incomplete coaptation of the anterior and posterior mitral valve leaflets that creates a regurgitant orifice (arrowheads). Inset: Reconstruction perpendicular to the regurgitant orifice shows the ROA (arrowheads); planimetric measurements indicated that the ROA was 15 mm2. (b) Corresponding TEE image in two-chamber view at 90° similarly shows the incompetent valve closure (arrowheads) during systole. Inset: Color Doppler echocardiogram shows a jet (arrowheads) regurgitating into the LA; mitral regurgitation was considered mild (grade 1) in this patient. (c) Ventriculogram in 60° left anterior oblique projection shows flow of contrast medium (arrowheads) into the LA during systole; this mitral regurgitation was considered mild (grade 1).
