Girerd X, Copie X, Mourad J J, Moulin C, Acar C, Mignot J P, Safar M, Laurent S
Service de médecine interne, hôpital Broussais, Paris.
Arch Mal Coeur Vaiss. 1994 Aug;87(8):1019-22.
To determine the reproducibility of radial artery mass (RAM), in hypertensive patients.
In 49 patients, RAM was measured using a high resolution echotracking device (Nius-02) which allows noninvasive measurement of diameter and wall thickness of the radial artery. RAM was validated in vitro by comparing weight of arterial segments to ultrasonographic measurement and determined as RAM = r (pi Re2-pi Ri2) where r is the arterial wall density (1.06 g/cm3), and Re and Ri are values of internal and external radii, respectively. Repeatability coefficient (RC2 = SDi2/n) was 1.3 mg.
Blood pressure was (mean +/- SD) 146 +/- 19/85 +/- 15 mmHg, radial arterial diameter was 2,449 +/- 376 microns, radial wall thickness was 302 +/- 68 microns, RAM was 28 +/- 9 mg (range 13-43 mg).
These results indicate that radial artery mass can be measured using a high resolution echotracking device.
确定高血压患者桡动脉质量（RAM）的可重复性。
对49例患者使用高分辨率回声跟踪装置（Nius - 02）测量RAM，该装置可无创测量桡动脉直径和壁厚度。通过比较动脉节段重量与超声测量值在体外对RAM进行验证，RAM计算公式为RAM = r（πRe² - πRi²），其中r为动脉壁密度（1.06 g/cm³），Re和Ri分别为内半径和外半径值。重复性系数（RC² = SDi²/n）为1.3 mg。
血压为（均值±标准差）146±19/85±15 mmHg，桡动脉直径为2449±376微米，桡动脉壁厚度为302±68微米，RAM为28±9 mg（范围13 - 43 mg）。
这些结果表明，可使用高分辨率回声跟踪装置测量桡动脉质量。
