Evaluation of mitral chordae tendineae length using four-dimensional computed tomography

Figure 2 Variability of the mitral valve primary chordae tendineae during systole. The primary chordae tendineae from the posterior papillary muscle to the A2-3 region (cP) plateaued at 15%. The primary chordae tendineae from the anterior papillary muscle to the A1-2 region (cA) peaked at 15%, then shortened slightly and again peaked toward end-systole. 0-40%: Systole, 45-100%: Diastole.