Differences in the Properties of the Radial Artery between Cun, Guan, Chi, and Nearby Segments Using Ultrasonographic Imaging: A Pilot Study on Arterial Depth, Diameter, and Blood Flow

Evidence-based Complementary and Alternative Medicine : ECAM
Jaeuk U KimJong Yeol Kim

Abstract

Aim of the Study. The three conventional pulse-diagnostic palpation locations (PLs) on both wrists are Cun, Guan, and Chi, 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 than Chi. 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, and Chi.".

References

Jul 4, 2006·The Journal of Alternative and Complementary Medicine : Research on Paradigm, Practice, and Policy·Emma KingDeirdre Cobbin
Dec 15, 2007·Acupuncture & Electro-therapeutics Research·Chu-Chang TyanJian-Jung Chen
Oct 1, 2009·Evidence-based Complementary and Alternative Medicine : ECAM·Young J JeonJong Y Kim
Nov 6, 2013·Evidence-based Complementary and Alternative Medicine : ECAM·Jang-Han BaeJaeuk U Kim

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Citations

Jun 18, 2019·Evidence-based Complementary and Alternative Medicine : ECAM·Peng LiXue-Peng Zhang

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