The Pilot Study of Evaluating Fluctuation in the Blood Flow Volume of the Radial Artery, a Site for Traditional Pulse Diagnosis
Masashi Watanabe,
Soichiro Kaneko,
Shin Takayama,
Yasuyuki Shiraishi,
Takehiro Numata,
Natsumi Saito,
Takashi Seki,
Norihiro Sugita,
Satoshi Konno,
Tomoyuki Yambe,
Makoto Yoshizawa,
Nobuo Yaegashi,
Tadashi Ishii
Affiliations
Masashi Watanabe
Department of Education and Support for Regional Medicine, Department of Kampo Medicine, Tohoku University Hospital, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Soichiro Kaneko
Department of Education and Support for Regional Medicine, Department of Kampo Medicine, Tohoku University Hospital, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Shin Takayama
Department of Education and Support for Regional Medicine, Department of Kampo Medicine, Tohoku University Hospital, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Yasuyuki Shiraishi
Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
Takehiro Numata
Department of Education and Support for Regional Medicine, Department of Kampo Medicine, Tohoku University Hospital, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Natsumi Saito
Department of Education and Support for Regional Medicine, Department of Kampo Medicine, Tohoku University Hospital, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Takashi Seki
Division of Cyclotron Nuclear Medicine, Cyclotron and Radioisotope Center, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
Norihiro Sugita
Department of Management Science and Technology, Graduate School of Engineering, Tohoku University, 6-6-05 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan
Satoshi Konno
Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
Tomoyuki Yambe
Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
Makoto Yoshizawa
Research Division on Advanced Information Technology, Cyberscience Center, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
Nobuo Yaegashi
Department of Obstetrics and Gynecology, Graduate School of Medicine, Tohoku University, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Tadashi Ishii
Department of Education and Support for Regional Medicine, Department of Kampo Medicine, Tohoku University Hospital, 1-1 Seiryou-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
Background: Radial artery (RA) pulse diagnosis has been used in traditional Asian medicine. Blood pressure (BP) and pulse rate related to heart rate variability (HRV) can be monitored via the RA. The fluctuation in these parameters has been assessed using fast Fourier transform (FFT) analytical methods that calculate power spectra. Methods: We measured blood flow volume (Volume) in the RA and evaluated its fluctuations. Normal participants (n = 34) were enrolled. We measured the hemodynamics of the right RA for approximately 50 s using ultrasonography. Results: The parameters showed the center frequency (CF) of the power spectrum at low frequency (LF) and high frequency (HF). More than one spectral component indicated that there were fluctuations. The CF at LF for Volume was significantly different from that for vessel diameter (VD); however, it was significantly correlated with blood flow velocity (Velocity). On the other hand, the CF at HF for Volume was significantly different from that for Velocity; however, it was significantly correlated with VD. Conclusion: It is suggested that fluctuation in the Volume at LF of RA is influenced by the fluctuation in Velocity; on the other hand, fluctuation in the Volume at HF is influenced by the fluctuation in VD.
