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Titolo:
Decay Index: A new carotid Doppler waveform measure associated with the Windkessel function of elastic arteries
Autore:
Nagai, Y; Helwegen, J; Fleg, JL; Kemper, MK; Earley, CJ; Rywik, TM; Wijn, P; Metter, EJ;
Indirizzi:
NIA, NIH, Clin Invest Lab, Gerontol Res Ctr, Baltimore, MD 21224 USA NIA Baltimore MD USA 21224 Lab, Gerontol Res Ctr, Baltimore, MD 21224 USA Osaka Univ, Sch Med, Dept Internal Med & Therapeut, Osaka, Japan Osaka Univ Osaka Japan Med, Dept Internal Med & Therapeut, Osaka, Japan Eindhoven Univ Technol, Dept Phys Grp Phys Informat, NL-5600 MB Eindhoven,Netherlands Eindhoven Univ Technol Eindhoven Netherlands NL-5600 MB oven,Netherlands John Hopkins Bayview Med Ctr, Dept Neurol, Baltimore, MD USA John Hopkins Bayview Med Ctr Baltimore MD USA Neurol, Baltimore, MD USA NIA, NIH, Cardiovasc Res Lab, Baltimore, MD 21224 USA NIA Baltimore MD USA 21224 H, Cardiovasc Res Lab, Baltimore, MD 21224 USA St Josephs Hosp, Veldhoven, Netherlands St Josephs Hosp Veldhoven Netherlands ephs Hosp, Veldhoven, Netherlands
Titolo Testata:
ULTRASOUND IN MEDICINE AND BIOLOGY
fascicolo: 9, volume: 25, anno: 1999,
pagine: 1371 - 1376
SICI:
0301-5629(199911)25:9<1371:DIANCD>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORONARY HEART-DISEASE; AORTIC COMPLIANCE; PRESSURE; FLOW; STIFFNESS; DECREASE; AGE;
Keywords:
carotid arteries; Doppler; Windkessel function; peripheral resistance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Metter, EJ NIA, NIH, Clin Invest Lab, Gerontol Res Ctr, Box 06,5600 NathanShock Dr, Baltimore, MD 21224 USA NIA Box 06,5600 Nathan Shock Dr Baltimore MD USA 21224 1224 USA
Citazione:
Y. Nagai et al., "Decay Index: A new carotid Doppler waveform measure associated with the Windkessel function of elastic arteries", ULTRASOUN M, 25(9), 1999, pp. 1371-1376

Abstract

The Windkessel function of elastic arteries determines the postpeak contour of the internal carotid artery (ICA) Doppler waveform. To introduce an indicator for the function, the postpeak contour was reproduced by an exponential function, and the exponential coefficient was termed "Decay Index" (DI), DI obtained from 108 stenosis-free ICAs (55.2 +/- 15.8 y) was compared with surrogate measures for the Windkessel function (aortic pulse wave velocity, pulse pressure) and BCA peripheral resistance (resistive index, pulsatility index, systolic-to-diastolic ratio). DI was moderately correlated with the Windkessel and the resistance measures (r ranged 0.44-0.57), To clarify these intercorrelations, principal component analysis revealed two components. The first was loaded by the resistance measures (component load greater than or equal to 0.93) although the second was loaded by the Windkesselmeasures and DI (greater than or equal to 0.70), supporting an associationbetween DI and the Windkessel function, Thus, DI is likely to represent anindicator for the Windkessel function. (C) 1999 World Federation for Ultrasound in Medicine & Biology.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 05:11:46