[超声测量人体桡动脉血管质量]

[Measurement of the vascular mass of the human radial artery by ultrasonics].

作者信息

Girerd X, Copie X, Mourad J J, Moulin C, Acar C, Mignot J P, Safar M, Laurent S

机构信息

Service de médecine interne, hôpital Broussais, Paris.

出版信息

Arch Mal Coeur Vaiss. 1994 Aug;87(8):1019-22.

PMID:7755451

Abstract

OBJECTIVE

To determine the reproducibility of radial artery mass (RAM), in hypertensive patients.

DESIGN AND METHODS

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.

RESULTS

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).

CONCLUSION

These results indicate that radial artery mass can be measured using a high resolution echotracking device.

摘要

目的

确定高血压患者桡动脉质量（RAM）的可重复性。

设计与方法

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。