Determination of the luminal diameter of the radial artery in man by high frequency ultrasound: a methodological study

Ultrasound in Medicine & Biology
T H NielsenP Tfelt-Hansen

Abstract

The validity and reproducibility of measurements of the luminal diameter of the radial artery in man were investigated with Dermascan A, a 20 MHz ultrasound scanner. The luminal diameter of a reference object, a plastic tube, was measured with ultrasound to be 99.0% of stereomicroscopic measurements. By comparing the diameter of the reference object either filled with water or blood at 37 degrees C, the ultrasound velocity in human blood at 37 degrees C was calculated to be 1605 m/s. The intraobserver repeatability coefficients of in-vivo measurements of the radial artery in man were in the same range, whether measurements were repeated after 30 min (14%) or from day to day (12%). The interobserver repeatability coefficient was acceptable (15%) when the site of measurements was marked, whereas measurements without a mark resulted in a repeatability coefficient of 24%. The intravenous administration of 0.5 mg ergotamine tartrate to 5 subjects caused a decrease in the mean luminal diameter of the radial artery from 2.94 mm to 2.42 mm 1 h after ergotamine (p less than 0.05). This ultrasound method for measurements of the luminal diameter should thus be suitable for investigating the effects of physiological and pharmacological sti...Continue Reading

References

Apr 1, 1979·British Journal of Clinical Pharmacology·I C Roddie, W F Wallace
Jan 1, 1979·The Journal of Investigative Dermatology·H Alexander, D L Miller
Dec 1, 1976·Scandinavian Journal of Clinical and Laboratory Investigation·N A LassenP Holstein
May 1, 1972·Journal of Applied Physiology·D E HokansonD E Strandness

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Citations

Jan 1, 1993·European Journal of Clinical Pharmacology·H K IversenJ Olesen
Jan 1, 1995·European Journal of Applied Physiology and Occupational Physiology·H K IversenN H Secher
Mar 8, 2005·European Journal of Pediatrics·Weihua ZhuHenning Neubauer
Jan 1, 1994·Journal of the American College of Cardiology·S BoesgaardJ Aldershvile
Jul 22, 1998·International Journal of Cardiology·D J Hildick-SmithM C Petch
Jan 3, 2001·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·C KruuseJ Olesen
Jul 21, 2009·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·P Tfelt-HansenJ Olesen
Jan 8, 2009·Cephalalgia : an International Journal of Headache·K A PetersenJ Olesen
Feb 18, 2009·Cephalalgia : an International Journal of Headache·M LindholtP Tfelt-Hansen
Apr 1, 1995·Acta Physiologica Scandinavica·H L OlesenN H Secher
Dec 31, 2004·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·Steffen BirkJes Olesen
Jan 1, 1993·Ultrasound in Medicine & Biology·T H NielsenJ Olesen
Jan 1, 1994·Ultrasound in Medicine & Biology·W Buschmann
Oct 6, 1990·Lancet·H K IversenP Tfelt-Hansen
Jun 4, 2008·The Journal of Headache and Pain·Ingelise ChristiansenPeer Tfelt-Hansen
Oct 21, 2010·Cephalalgia : an International Journal of Headache·J F TvedskovJ Olesen
Oct 19, 2000·Cephalalgia : an International Journal of Headache·I ChristiansenJ Olesen
Oct 1, 1996·Cephalalgia : an International Journal of Headache·H K Iversen, J Olesen
Dec 1, 1994·Cephalalgia : an International Journal of Headache·H K Iversen, J Olesen
Jan 1, 1995·Cephalalgia : an International Journal of Headache·H K Iversen
Mar 1, 2005·Clinical Pharmacology and Therapeutics·Kenneth A PetersenJes Olesen
Oct 4, 2018·Journal of Cataract and Refractive Surgery·Giacomo SaviniDomenico Schiano-Lomoriello
May 6, 2017·Cephalalgia : an International Journal of Headache·Nanna ArngrimMessoud Ashina
Apr 24, 2020·Cephalalgia : an International Journal of Headache·Song GuoMessoud Ashina

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