Mechanics of the mitral valve strut chordae insertion region

Journal of Biomechanical Engineering

Volumn 132, Issue 8, 2010, Pages

  Padala, Muralidhar ^a   Sacks, Michael S ^b,c   Liou, Shasan W ^a   Balachandran, Kartik ^a   He, Zhaoming ^d   Yoganathan, Ajit P ^a  

^a Emory University   (United States)

^b University of Pittsburgh   (United States)

^c UNIVERSITY OF PITTSBURGH   (United States)

^d Department of Electrical and Computer Engineering   (United States)

Author keywords

Anterior leaflet; Chordae tendineae; Collagen fiber orientation; Dynamic strain measurement; Mitral valve

Indexed keywords

CARDIAC CYCLES; CARDIAC OUTPUT; CHORDAE TENDINEAE; CIRCUMFERENTIAL DIRECTION; COLLAGEN FIBER ORIENTATION; CONTINUOUS SURFACE; DIRECT LINEAR TRANSFORMATION; DYNAMIC DEFORMATION; MAPPING METHOD; MITRAL VALVE MECHANICS; MITRAL VALVES; PRINCIPAL DIRECTIONS; PRINCIPAL STRETCH; REPAIR METHODS; SECOND ORDERS; STRETCH RATE; STRONG COUPLING; STRUCTURED ARRAYS; TEMPORAL CHANGE; TIME FRAME; TRANSITION ZONES; TRANSVALVULAR PRESSURES;

COLLAGEN; DYNAMICS; HEART; LINEAR TRANSFORMATIONS; STRAIN GAGES; STRAIN MEASUREMENT; STRUTS;

VALVES (MECHANICAL);

COLLAGEN;

ARTICLE; CHORDA TENDINEA; DIASTOLE; HEART CYCLE; HEART OUTPUT; HEART VALVE BIOPROSTHESIS; KINEMATICS; MITRAL VALVE; NONHUMAN; STRETCHING; SWINE; SYSTOLE; ANIMAL; BIOLOGICAL MODEL; BLOOD PRESSURE; COMPUTER SIMULATION; IN VITRO STUDY; PHYSIOLOGY; PULSATILE FLOW; YOUNG MODULUS;

SUS;

ANIMALS; BLOOD PRESSURE; CHORDAE TENDINEAE; COMPUTER SIMULATION; ELASTIC MODULUS; MITRAL VALVE; MODELS, CARDIOVASCULAR; PULSATILE FLOW; SWINE;

EID: 77955346225     PISSN: 01480731     EISSN: 15288951     Source Type: Journal    
DOI: 10.1115/1.4001682     Document Type: Article

References (14)

1. Nielsen, S. L., Hansen, S. B., Nielsen, K. O., Nygaard, H., Paulsen, P. K., and Hasenkam, J. M., 2005, "Imbalanced Chordal Force Distribution Causes Acute Ischemic Mitral Regurgitation: Mechanistic Insights From Chordae Tendineae Force Measurements in Pigs," J. Thorac. Cardiovasc. Surg., 129(3), pp. 525-531. (Pubitemid 40311310)
2. Nielsen, S. L., Nygaard, H., Fontaine, A. A., Hasenkam, J. M., He, S., Andersen, N. T., and Yoganathan, A. P., 1999, "Chordal Force Distribution Determines Systolic Mitral Leaflet Configuration and Severity of Functional Mitral Regurgitation," J. Am. Coll. Cardiol., 33(3), pp. 843-853.
3. Espino, D. M., Shepherd, D. E., Hukins, D. W., and Buchan, K. G., 2005, "The Role Of Chordae Tendineae in Mitral Valve Competence," J. Heart Valve Dis., 14(5), pp. 603-609.
4. Jimenez, J. H., Soerensen, D. D., He, Z., He, S., and Yoganathan, A. P., 2003, "Effects of a Saddle Shaped Annulus on Mitral Valve Function and Chordal Force Distribution: An In Vitro Study," Ann. Biomed. Eng., 31(10), pp. 1171-1181.
5. Chen, L., Yin, F. C., and May-Newman, K., 2004, "The Structure and Mechanical Properties of the Mitral Valve Leaflet-Strut Chordae Transition Zone," ASME J. Biomech. Eng., 126(2), pp. 244-251.
6. Sacks, M. S., Enomoto, Y., Graybill, J. R., Merryman, W. D., Zeeshan, A., Yoganathan, A. P., Levy, R. J., Gorman, R. C., and Gorman, J. H., III, 2006, "In-Vivo Dynamic Deformation of the Mitral Valve Anterior Leaflet," Ann. Thorac. Surg., 82(4), pp. 1369-1377.
7. Sacks, M. S., He, Z., Baijens, L., Wanant, S., Shah, P., Sugimoto, H., and Yoganathan, A. P., 2002, "Surface Strains in the Anterior Leaflet of the Functioning Mitral Valve," Ann. Biomed. Eng., 30(10), pp. 1281-1290.
8. He, Z., Ritchie, J., Grashow, J. S., Sacks, M. S., and Yoganathan, A. P., 2005, "In Vitro Dynamic Strain Behavior of the Mitral Valve Posterior Leaflet," ASME J. Biomech. Eng., 127(3), pp. 504-11. (Pubitemid 40881165)
9. Smith, D. B., Sacks, M. S., Vorp, D. A., and Thornton, M., 2000, "Surface Geometric Analysis of Anatomic Structures Using Biquintic Finite Element Interpolation," Ann. Biomed. Eng., 28(6), pp. 598-611.
10. Sacks, M. S., Smith, D. B., and Hiester, E. D., 1997, "A Small Angle Light Scattering Device for Planar Connective Tissue Microstructural Analysis," Ann. Biomed. Eng., 25(4), pp. 678-689.
11. Ritchie, J., Jimenez, J., He, Z., Sacks, M. S., and Yoganathan, A. P., 2006, "The Material Properties of the Native Porcine Mitral Valve Chordae Tendineae: An In Vitro Investigation," J. Biomech., 39(6), pp. 1129-1135.
12. Sacks, M. S., Merryman, W. D., and Schmidt, E. E., 2009, "On the Biomechanics of Heart Valve Function," J. Biomech., 42(12), pp. 1804-1824.
13. Sacks, M. S., and Yoganathan, A. P., 2007, "Heart Valve Function: A Biomechanical Perspective," Philos. Trans. R. Soc. London, Ser. B, 362(1484), pp. 1369-1392.
14. Goetz, W. A., Lim, H.-S., Pekar, F., Saber, H. A., Weber, P. A., Lansac, E., Birnbaum, D. E., and Duran, C. M. G., 2003, "Anterior Mitral Leaflet Mobility Is Limited by the Basal Stay Chords," Circulation, 107, pp. 2969-2974.