Affiliation:
1. Medical Engineering R&D Group, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
2. Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA
Abstract
Aim of the Study. The three conventional pulse-diagnostic palpation locations (PLs) on both wrists areCun,Guan, andChi, and each location reveals different clinical information. To identify anatomical or hemodynamic specificity, we used ultrasonographic imaging to determine the arterial diameter, radial artery depth, and arterial blood flow velocity at the three PLs and at nearby non-PL segments.Methods. We applied an ultrasound scanner to 44 subjects and studied the changes in the arterial diameter and depth as well as in the average/maximum blood flow velocities along the radial artery at three PLs and three non-PLs located more proximally thanChi.Results. All of the measurements at all of the PLs were significantly different (P< 0.01). Artery depth was significantly different among the non-PLs; however, this difference became insignificant after normalization to the arm circumference.Conclusions. Substantial changes in the hemodynamic and anatomical properties of the radial artery around the three PLs were insignificant at the nearby non-PLs segments. This finding may provide a partial explanation for the diagnostic use of “Cun,Guan, andChi.”
Funder
Korea Institute of Oriental Medicine
Subject
Complementary and alternative medicine
Cited by
21 articles.
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