Experimental Study of Ventricular Myocardial Band Using Magnetic Resonance Diffusion Tensor Imaging Technique_Chinese Journal of Clinical Thoracic and Cardiovascular Surgery

Authors：

ZHANG Tao , GAO Changqing , LI Libing

1Department of Cardiovascular Surgery, PLA General Hospital, PLA Institute of Cardiac Surgery, Beijing 100853, P. R. China;;
2Department of MRI, Department of Radiology, PLA General Hospital, Beijing 100853, P.R.China;

Corresponding author：

Keywords：

Myocardial fiber; Magnetic resonance imaging; Diffusion tensor imaging; Ventricular myocardial band

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Objective To investigate the feasibility of magnetic resonance diffusion tensor imaging (MRDTI) technique in displaying myocardial fiber architecture. Methods In five ex vivo swine heart, diffusion tensor imaging (DTI) was acquired in 25 directions within 2 hours after excision. The myocardial fiber was reconstructed by using brain white matter tractography algorithm to display its course, distribution and arrangement. Results In the swine heart 1 hour after excision, MRDTI revealed that the arrangement of the myocardial fiber had certain continuity. It spiraled and twisted to form the left and right ventricle. The divection of general myocardial fiber in the left ventricle was vertical below endocardium, horizontal below epicardium and oblique in stratum medium, which is consistent with the theory of ventricular myocardial band. Conclusion MRDTI can reveal the myocardial fiber architecture, showing its integrity and arrangement, and at some level confirming the theory of ventricular myocardial band.

Citation： ZHANG Tao,GAO Changqing,LI Libing,CHENG Liuquan. Experimental Study of Ventricular Myocardial Band Using Magnetic Resonance Diffusion Tensor Imaging Technique. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2007, 14(6): 443-. doi: Copy

1.	LeGrice IJ, Smaill BH, Chai LZ, et al. Laminar structure of the heart: ventricular myocyte arrangement and connective tissue architecture in the dog. Am J Physiol, 1995, 269(2 pt2): H571-H582.
2.	Lunkenheimer PP, Redmann K, Dietl KH, et al. The heart’s fibre alignment assessed by comparing two digitizing systems. Methodological investigation into the inclination angle towards wall thickness. Technol Health Care, 1997, 5(1-2): 65-77.
3.	Sanchez-Quintana D, Garcia-Martinez V, Hurle JM. Myocardial fiber architecture in the human heart. Anatomical demonstration of modifications in the normal pattern of ventricular fiber architecture in a malformed adult specimen. Acta Anat(Basel), 1990, 138(4): 352-358.
4.	Basser PJ, Mattiello J, LeBihan D. MR diffusion tensor spectroscopy and imaging. Biophys J, 1994, 66(1): 259-267.
5.	Holmes AA, Scollan DF, Winslow RL. Direct histological validation of diffusion tensor MRI in formaldehyde-fixed myocardium. Magn Reson Med, 2000, 44(1):157-161.
6.	Jones DK, Simmons A, Williams SC, et al. Non-invasive assessment of axonal fiber connectivity in the human brain via diffusion tensor MRI. Magn Reson Med, 1999, 42(1): 37-41.
7.	高长青, 张涛, 李力兵. 心肌带解剖结构的实验研究. 中华胸心血管外科杂志, 2006, 22(6): 410-412.
8.	张涛, 高长青, 李力兵. 心肌带空间走行的研究. 中华胸心血管外科杂志, 2006, 22(6): 413-414.
9.	叶卫华, 高长青, 李力兵，等. 心肌带解剖的新方法. 中国胸心血管外科临床杂志, 2007, 14(2): 122-125.
10.	Schmid P, Jaermann T, Boesiger P, et al. Ventricular myocardial architecture as visualised in postmortem swine hearts using magnetic resonance diffusion tensor imaging. Eur J Cardiothorac Surg, 2005, 27(3): 468-472.
11.	Beg MF, Helm PA, McVeigh E, et al. Computational cardiac anatomy using MRI. Magn Reson Med, 2004, 52(5): 1167-1174.
12.	Tseng WY, Wedeen VJ, Reese TG, et al. Diffusion tensor MRI of myocardial fibers and sheets: Correspondence with visible cut-face texture. J Magn Reson Imaging, 2003, 17(1): 31-42.
13.	Geerts L, Bovendeerd P, Nicolay K, et al. Characterization of the normal cardiac myofiber field in goat measured with MR-diffusion tensor imaging. Am J Physiol Heart Circ Physiol, 2002, 283(1): H139-H145.
14.	Forder JR, Pohost GM. Cardiovascular nuclear magnetic resonance: basic and clinical applications. J Clin Invest, 2003, 111(11): 1630-1639.
15.	Tseng WY, Reese TG, Weisskoff RM, et al. Cardiac diffusion tensor MRI in vivo without strain correction. Magn Reson Med, 1999, 42(2): 393-403.
16.	Torrent-Guasp F, Buckberg GD, Clemente C, et al. The structure and function of the helical heart and its buttress wrapping. I. The normal macroscopic structure of the heart. Semin Thorac Cardiovasc Surg, 2001, 13(4): 301-319.

1. 　LeGrice IJ, Smaill BH, Chai LZ, et al. Laminar structure of the heart: ventricular myocyte arrangement and connective tissue architecture in the dog. Am J Physiol, 1995, 269(2 pt2): H571-H582.
2. 　Lunkenheimer PP, Redmann K, Dietl KH, et al. The heart’s fibre alignment assessed by comparing two digitizing systems. Methodological investigation into the inclination angle towards wall thickness. Technol Health Care, 1997, 5(1-2): 65-77.
3. 　Sanchez-Quintana D, Garcia-Martinez V, Hurle JM. Myocardial fiber architecture in the human heart. Anatomical demonstration of modifications in the normal pattern of ventricular fiber architecture in a malformed adult specimen. Acta Anat(Basel), 1990, 138(4): 352-358.
4. 　Basser PJ, Mattiello J, LeBihan D. MR diffusion tensor spectroscopy and imaging. Biophys J, 1994, 66(1): 259-267.
5. 　Holmes AA, Scollan DF, Winslow RL. Direct histological validation of diffusion tensor MRI in formaldehyde-fixed myocardium. Magn Reson Med, 2000, 44(1):157-161.
6. 　Jones DK, Simmons A, Williams SC, et al. Non-invasive assessment of axonal fiber connectivity in the human brain via diffusion tensor MRI. Magn Reson Med, 1999, 42(1): 37-41.
7. 　高长青, 张涛, 李力兵. 心肌带解剖结构的实验研究. 中华胸心血管外科杂志, 2006, 22(6): 410-412.
8. 　张涛, 高长青, 李力兵. 心肌带空间走行的研究. 中华胸心血管外科杂志, 2006, 22(6): 413-414.
9. 　叶卫华, 高长青, 李力兵，等. 心肌带解剖的新方法. 中国胸心血管外科临床杂志, 2007, 14(2): 122-125.
10. 　Schmid P, Jaermann T, Boesiger P, et al. Ventricular myocardial architecture as visualised in postmortem swine hearts using magnetic resonance diffusion tensor imaging. Eur J Cardiothorac Surg, 2005, 27(3): 468-472.
11. 　Beg MF, Helm PA, McVeigh E, et al. Computational cardiac anatomy using MRI. Magn Reson Med, 2004, 52(5): 1167-1174.
12. 　Tseng WY, Wedeen VJ, Reese TG, et al. Diffusion tensor MRI of myocardial fibers and sheets: Correspondence with visible cut-face texture. J Magn Reson Imaging, 2003, 17(1): 31-42.
13. 　Geerts L, Bovendeerd P, Nicolay K, et al. Characterization of the normal cardiac myofiber field in goat measured with MR-diffusion tensor imaging. Am J Physiol Heart Circ Physiol, 2002, 283(1): H139-H145.
14. 　Forder JR, Pohost GM. Cardiovascular nuclear magnetic resonance: basic and clinical applications. J Clin Invest, 2003, 111(11): 1630-1639.
15. 　Tseng WY, Reese TG, Weisskoff RM, et al. Cardiac diffusion tensor MRI in vivo without strain correction. Magn Reson Med, 1999, 42(2): 393-403.
16. 　Torrent-Guasp F, Buckberg GD, Clemente C, et al. The structure and function of the helical heart and its buttress wrapping. I. The normal macroscopic structure of the heart. Semin Thorac Cardiovasc Surg, 2001, 13(4): 301-319.

Chinese Journal of Clinical Thoracic and Cardiovascular Surgery

Experimental Study of Ventricular Myocardial Band Using Magnetic Resonance Diffusion Tensor Imaging Technique

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