向井 常人¹, 石井 誠¹, 米山 啓一郎¹, 小貫 誠¹, 三田村 圭二¹, 戸塚 大輔², 川内 章裕³, 高橋 正一郎⁴

Tsunehito MUKAI¹, Makoto ISHII¹, Keiichirou YONEYAMA¹, Makoto ONUKI¹, Keiji MITAMURA¹, Daisuke TOTSUKA², Akihiro KAWAUCHI³, Seiichirou TAKAHASHI⁴

¹昭和大学第2内科, ²昭和大学腎臓内科, ³昭和大学外科, ⁴富士吉田市立病院内科

¹Second Department of Internal Medicine, Showa University School of Medicine, ²Department of Nephrology, Showa University School of Medicine, ³Department of Surgery, Showa University School of Medicine, ⁴Department of Internal Medicine Fujiyoshida City Hospital

キーワード : Doppler color flow mapping, Influence of aging, Renal blood flow velocity

It is generally accepted that aging influences volume of renal blood flow, though there are no reports on renal blood flow velocity in vivo. In this study, relationship between aging and velocity of renal blood flow were examined to determine the clinical significance of measurement of renal blood flow velocity using Doppler color flow mapping (with the Toshiba model SSA-270A). Ninety-five healthy subjects who had no renal, hepatic, or circulatory diseases were divided into eight groups according to decade of age. The segmental and interlobar arteries of all subjects are indicated in red. Renal blood flow velocity had a strong inverse correlation with age. We thus confirmed that age should be taken into account in the measurement of renal blood flow velocity in various diseases.