[Measurement of the vascular mass of the human radial artery by ultrasonics].
OBJECTIVE
To determine the reproducibility of radial artery mass (RAM), in hypertensive patients.


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).


CONCLUSIONS
These results indicate that radial artery mass can be measured using a high resolution echotracking device.
Girerd
X
X
Service de médecine interne, hôpital Broussais, Paris.
Copie
X
X
Mourad
J J
JJ
Moulin
C
C
Acar
C
C
Mignot
J P
JP
Safar
M
M
Laurent
S
S
D006801:Humans; D009929:Organ Size; D017534:Radial Artery / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D014463:Ultrasonography
Mesure de la masse vasculaire de l'artère radiale humaine par méthode ultrasonique.