Using hydraulic input impedance in determination of changes in the arteries of different calibre
Naumov, A.I.; Balashov, S.A.; Mel'kumiants, A.M.
Rossiiskii Fiziologicheskii Zhurnal Imeni I.M. Sechenova 89(12): 1507-1515
2003
ISSN/ISBN: 0869-8139 PMID: 14870488 Document Number: 553222
In anaesthetised cats, the arterial input impedance in combination with seven-element lumped-parameter model was used to estimate the resistance change in arteries of different caliber. The results show that the method gives reasonable estimations of changes in hydraulic resistance of arterial vessels of different caliber. We found that the method of vascular input impedance permits to reveal and assess quantitatively local constrictions and dilations as well as hemodynamically insignificant stenosis of conduit arteries.