Small arteries can be accurately studied in vivo, using high frequency ultrasound
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Small arteries can be accurately studied in vivo, using high frequency ultrasound. / Nielsen, T H; Iversen, Helle Klingenberg; Tfelt-Hansen, P; Olesen, J.
I: Ultrasound in Medicine & Biology, Bind 19, Nr. 9, 1993, s. 717-25.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Small arteries can be accurately studied in vivo, using high frequency ultrasound
AU - Nielsen, T H
AU - Iversen, Helle Klingenberg
AU - Tfelt-Hansen, P
AU - Olesen, J
PY - 1993
Y1 - 1993
N2 - We have validated measurements of diameters of the superficial temporal artery and other small arteries in man with a newly developed 20 MHz ultrasound scanner with A, B and M-mode imaging. The diameter of a reference object was 1.202 mm vs. 1.205 mm as measured by stereomicroscopy (nonsignificant). In vitro measurements of porcine carotid arteries could be reproduced with a mean interobserver difference of 0.008 mm, and the repeatability coefficient was 0.04 mm (1.4%). The frontal branch of the human superficial temporal artery (mean 1.24 mm) was measured with intraobserver repeatability coefficients of 0.18 mm (13.8%) to 0.31 mm (23.4%). The interobserver mean difference was 0.01 mm (0.69%) and the interobserver repeatability coefficient was 0.16 mm (11.1%). Pulsatile changes of the cross sectional area of the radial plus the ulnar artery averaged 0.93 mm2 compared to 0.63 mm2 by strain-gauge plethysmography (nonsignificant). Pulsations were 4.6% in the radial artery. We conclude that high frequency ultrasound provides an accurate and reproducible measure of the diameter of small and medium sized human arteries in vivo.
AB - We have validated measurements of diameters of the superficial temporal artery and other small arteries in man with a newly developed 20 MHz ultrasound scanner with A, B and M-mode imaging. The diameter of a reference object was 1.202 mm vs. 1.205 mm as measured by stereomicroscopy (nonsignificant). In vitro measurements of porcine carotid arteries could be reproduced with a mean interobserver difference of 0.008 mm, and the repeatability coefficient was 0.04 mm (1.4%). The frontal branch of the human superficial temporal artery (mean 1.24 mm) was measured with intraobserver repeatability coefficients of 0.18 mm (13.8%) to 0.31 mm (23.4%). The interobserver mean difference was 0.01 mm (0.69%) and the interobserver repeatability coefficient was 0.16 mm (11.1%). Pulsatile changes of the cross sectional area of the radial plus the ulnar artery averaged 0.93 mm2 compared to 0.63 mm2 by strain-gauge plethysmography (nonsignificant). Pulsations were 4.6% in the radial artery. We conclude that high frequency ultrasound provides an accurate and reproducible measure of the diameter of small and medium sized human arteries in vivo.
KW - Arteries
KW - Female
KW - Humans
KW - Male
KW - Observer Variation
KW - Plethysmography
KW - Reproducibility of Results
M3 - Journal article
C2 - 8134973
VL - 19
SP - 717
EP - 725
JO - Ultrasound in Medicine & Biology
JF - Ultrasound in Medicine & Biology
SN - 0301-5629
IS - 9
ER -
ID: 128984585