Objective: To reconstruct digitalized three-dimen sional (3D) image of Fengchi (GB 20) in fictitious visible human model. Methods: Based on the d atasets of VHP (vi sible human project) and the computerized 3D models of VOXEL-MAN

combining wi th our accumulated abundant knowledge about the acupoint’s anatomical structure

acupuncture

and utilizing computerized image processing techniques including differentiation

segmentation

visualization

etc.

this study is designed to d evelop visible 3D-Navigator about GB-20. Results: The so ftware of 3D representat ion of GB-20 was developed successfully

operator can observe the spatial tiss ue

structure

organs around Fengchi (GB 20) point and the process of acupuncture n eedle insertion interactively and vividly. Viewing from both sagittal plane and transverse section

if the needle-tip is toward the nose-tip

the needle-ins erti on is safer due to minimal possibility of injuring the brain stem

thus

the ins erted acupuncture needle ( 1.5 cun long being safe) should be pushed forward below the nose plane. Conclusion: The 3D image expression of acupun cture of Fengchi (GB 20) has been realized by using visualization technique.