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Japanese

Changes in Radius of the Digital Arteries due to Pulsations Masataka Kato 1 , Tomoyuki Suzuki 1 , Arao Kojima 1 , Toshihiko Koeda 1 , Itaru Motegi 1 , Yuki Takahashi 1 , Hiroshi Yamamoto 1 , Takeshi Kimura 1 , Toshio Ichimaru 2 1The 2nd Department of Internal Medicine, Iwate Medical University School of Medicine 2Department of Dental Technology, Iwate Medical University School of Dentistry pp.41-46
Published Date 1980/1/15
DOI https://doi.org/10.11477/mf.1404203501
  • Abstract
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Digital blood flow (F) and differential (pulsatile) flow (ΔV) were measured by means of the venous occlusive method in the right forefinger using Pneumoplethysmograph FM-10, changes in radius of the digital arteries were calculated from following equation: ΔV/V=2・Δr/r, in which r is a radius of the digital artery in diastolic phase and Δr is a maximum increment of the radius in systolic phase of the heart cycle.

Changes in radius of the digital arteries due to pulsations were the greatest in hypertensive patients (7.51±0.05)%, and in descending order was less in subjects with borderline hypertension (7.32±0.67)%, and normal subjects (6.94±0.93) %. No significant difference was found statistical-ly among them.


Copyright © 1980, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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