title: [Measurement of the vascular mass of the human radial artery by ultrasonics].
abstract: 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.
authors.affiliation: Service de médecine interne, hôpital Broussais, Paris.
authors.forename: X
authors.initials: X
authors.lastname: Girerd
authors.forename: X
authors.initials: X
authors.lastname: Copie
authors.forename: J J
authors.initials: JJ
authors.lastname: Mourad
authors.forename: C
authors.initials: C
authors.lastname: Moulin
authors.forename: C
authors.initials: C
authors.lastname: Acar
authors.forename: J P
authors.initials: JP
authors.lastname: Mignot
authors.forename: M
authors.initials: M
authors.lastname: Safar
authors.forename: S
authors.initials: S
authors.lastname: Laurent
mesh_terms: D006801:Humans; D009929:Organ Size; D017534:Radial Artery / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D014463:Ultrasonography
vernacular_title: Mesure de la masse vasculaire de l'artère radiale humaine par méthode ultrasonique.