Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (35): 6563-6566.doi: 10.3969/j.issn.1673-8225.2010.35.026

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Anatomical validation of the left ventricular apical thinning in Chinese people measured by three-dimensional CT imaging 

Li Fang-zhi1, Zhang Ping2, He Hong-wei2, Wang Ze-en3, Lin Qing-chi2, Duan Shao-yin2   

  1. 1 CT Room, People's Hospital of Xiangxi Autonomous Prefecture, Jishou  416000, Hunan Province, China; 2 Department of Imaging, Zhongshan Hospital of Xiamen University, Xiamen  361004, Fujian Province, China; 3 Department of Anatomy, Xiamen University Medical School, Xiamen  361005, Fujian Province, China
  • Online:2010-08-27 Published:2010-08-27
  • Contact: Duan Shao-yin, Doctor, Professor, Department of Imaging, Zhongshan Hospital of Xiamen University, Xiamen 361004, Fujian Province, China xmdsy@xmu.edu.cn
  • About author:Li Fang-zhi, Associate chief physician, CT Room, People's Hospital of Xiangxi Autonomous Prefecture, Jishou 416000, Hunan Province, China
  • Supported by:

     the Medical Health Scientific Research Foundation Program of Xiamen, No. WSK0622*

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Abstract:

BACKGROUND: In the application of heart three-dimensional CT imaging, the imaging sign of left ventricular apical thinning is observed in Chinese people. There is no any report in domestic literatures. To understand the anatomical and imaging features of the left ventricular apical thinning provides the basis for clinical applications and researches.
OBJECTIVE: To confirm the left ventricular apical thinning in Chinese people, and to measure its thickness and location.
METHODS: A total of 12 heart specimens of cadavers were observed, and the thickness of the left ventricular apical thinning was measured, as well as the thickest myocardium. 3D CT data of 69 cases without heart diseases were collected from PACS of Zhongshan Hospital of Xiamen University, the left ventricular apical thinning was shown with the techniques of 3D imaging, and the left ventricular apical thinning was measured, as well as the thickest myocardium and the distance between the left ventricular apical thinning and the anterior descending branch of the left coronary artery.
RESULTS AND CONCLUSION: The anatomical methods clearly showed the left ventricular apical thinning, with thickness of (1.74±0.32) mm. The thickest myocardium of left ventricle was (13.07±1.48) mm. 3D CT also showed clearly the left ventricular apical thinning, with thickness of (1.27±0.31) mm, and the thickest myocardium was (12.02±1.66) mm. The distance between the left ventricular apical thinning and the left ventricular was (13.70±3.78) mm. There was significant difference between the thickness of apical thin point and thickest myocardium of the left ventricle (P < 0.05). This study proves that there is left ventricular apical thinning, which is normal anatomy in Chinese people showed on both anatomy and 3D-CT.

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