Simultaneous determination of wave speed and arrival time of reflected waves using the pressure-velocity loop

Medical and Biological Engineering and Computing

Volumn 45, Issue 12, 2007, Pages 1201-1210

  Khir, Ashraf W ^a   Swalen, M J P ^a   Feng, J ^a   Parker, K H ^b  

^a BRUNEL UNIVERSITY   (United Kingdom)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

PU loop; Reflected waves; Wave intensity analysis; Wave speed

Indexed keywords

ALGORITHMS; FLOW MEASUREMENT; PRESSURE MEASUREMENT; REFLECTION;

REFLECTED WAVES; WAVE INTENSITY ANALYSIS; WAVE SPEED;

WAVEFORM ANALYSIS;

ALGORITHM; ANIMAL EXPERIMENT; ARTICLE; ASCENDING AORTA; BLOOD FLOWMETRY; CARDIOVASCULAR PARAMETERS; CONTROLLED STUDY; CORONARY ARTERY BLOOD FLOW; CORRELATION ANALYSIS; DOG; IN VITRO STUDY; IN VIVO STUDY; LINEAR SYSTEM; MALE; NONHUMAN; PRESSURE MEASUREMENT; PULSE WAVE; VELOCITY; WAVEFORM;

ALGORITHMS; ANIMALS; AORTA; BLOOD FLOW VELOCITY; BLOOD PRESSURE; DOGS; MODELS, CARDIOVASCULAR; PULSATILE FLOW; RHEOLOGY; VENTRICULAR PRESSURE;

EID: 36749092900     PISSN: 01400118     EISSN: None     Source Type: Journal    
DOI: 10.1007/s11517-007-0241-7     Document Type: Article

References (30)

1. Asmar R, Rudnichi A, Blacher J, London GM, Safar MF (2001) Pulse pressure and aortic pulse wave are markers of cardiovascular risk in hypertensive populations. AJH 14:91-99
2. Bland JM, Altman MG (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1(8476):307-310
3. Dujardin JP, Stone DN (1981) Characteristic impedance of the proximal aorta determined in the time and frequency domain: A comparison. Med Biol Eng Comput 19:565-568
4. Davies JE, Whinnett ZI, Francis DP, Willson K, Foale RA, Malik IS, Hughes AD, Parker KH, Mayet J (2006) Use of simultaneous pressure and velocity measurements to estimate arterial wave speed at a single site in humans. Am J Physiol Heart Circ Physiol 290:H878-H885
5. Harada A, Okada T, Niki K, Chang D, Sugawara M (2002) On-line noninvasive one-point measurements of pulse wave velocity. Heart Vessels 17:61-68
6. Jacques B, Asmar R, Djane S, London GM, Safar ME (1999) Aortic pulse wave velocity as a marker of cardiovascular risk in hypertensive patients. Hypertension 33:1111-1117
7. Karamanoglu M (2003) Errors in estimating propagation distances in pulse wave velocity. Hypertension 41:e8
8. Kelly RP, Tunin R, Kass DA (1992) Effect of reduced aortic compliance on cardiac efficiency and contractile function of in situ canine left ventricle. Circ Res 71:490-502
9. Khir AW, O'Brien A, Gibs S, Parker KH (2001) Determination of wave speed and wave separation in the arteries. J Biomech 34:1145-1155
10. Khir AW, Henein MY, Koh T, Das SK, Parker KH, Gibson DG (2001) Arterial waves in humans during peripheral vascular surgery. Clin Sci 101:749-757
11. Khir AW, Parker KH (2002) Measurements of wave speed and reflected waves in elastic tubes and bifurcations. J Biomech 35:775-783
12. Khir AW, Parker KH (2005) Wave intensity in the ascending aorta: Effects of arterial occlusion. J Biomech 38:647-655
13. Koh TW, Pepper JR, DeSouza AC, Parker KH (1998) Analysis of wave reflections in the arterial system using wave intensity: A novel method for predicting the timing and amplitude of reflected waves. Heart Vessels 13:103-113
14. Latham RD, Westerhof N, Spikema P, Rubal BJ, Reuderink P, Murgo JP (1985) Regional wave travel along the human aorta: A study with six simultaneous micromanometric pressures. Circulation 72:1257-1269
15. Laurent S, Boutouyrie P, Asmar R, Gautier I, Laloux B, Guize L, Ducimetiere P, Benetos A (2001) Aortic stiffness is an independent predictor of all-cause and cardiovascular mortality in hypertensive patients. Hypertension 37:1236-1241
16. Laurent S, Katsahian S, Fassot C, Tropeano AI, Gautier I, Laloux B, Boutouyrie P (2003) Aortic stiffness is an independent predictor of fatal stroke in essential hypertension. Stroke 34:1203-1206
17. Leung MC, Meredith IT, Cameron JD (2006) Aortic stiffness affects the coronary blood flow response to percutaneous coronary intervention. Am J Physiol Heart Circ Physiol 290(2):H624-H630
18. McDonald DA (1968) Regional pulse-wave velocity in the arterial tree. J Appl Physiol 24:73-78
19. McEniery CM, Yasmin, Hall IR, Qasem A, Wilkinson IB, Cockcroft JR, ACCT Investigators (2005) Normal vascular aging: Differential effects on wave reflection and aortic pulse wave velocity: The Anglo-Cardiff Collaborative Trial (ACCT). J Am Coll Cardiol 46:1753-1760
20. Murgo JP, Westerhof N, Giolma JP, Altobelli SA (1980) Aortic input impedance in normal man: Relationship to waveforms. Circulation 62:105-116
21. Nichols WW, O'Rourke MF (1998) McDonald's Blood Flow in Arteries, 4th edn. Edward Arnold, London
22. Nichols WW (2005) Clinical measurement of arterial stiffness obtained from noninvasive pressure waveforms. Am J Hypertens 18:3S-10S
23. Parker KH, Jones CJ, Dawson JR, Gibson DG (1988) What stops the flow of blood from the heart? Heart Vessels 4:241-245
24. Parker KH, Jones CJ (1990) Forward and backward running waves in the arteries: Analysis using the method of characteristics. J Biomech Eng 112:322-326
25. Pythoud F, Stergiopulos N, Meister J-J (1996) Separation of arterial pressure into their forward and backward running components. J Biomech Eng 118:295-301
26. Sun YH, Anderson TJ, Parker KH, Tyberg JV (2004) Effects of left ventricular contractility and coronary vascular resistance on coronary dynamics. Am J Physiol Heart Circ Physiol 286:H1590-H1595
27. Ueda H, Hayashi T, Tsumura K, Yoshimaru K, Nakayama Y, Yoshikawa J (2004) The timing of the reflected wave in the ascending aortic pressure predicts restenosis after coronary stent placement. Hypertens Res 27:535-540
28. Van Den Bos GC, Westerhof N, Elzinga G, Sipkema P (1976) Reflection in the systemic arterial system: Effects of aortic and carotid occlusion. Cardiovasc Res 10:565-573
29. Westerhof N, Sipkema P, van den Bos GC, Elzinga G (1972) Forward and backward waves in the arterial system. Cardiovasc Res 6:648-656
30. Westerhof BE, Guelen I, Westerhof N, Karemaker JM, Avolio A (2006) Quantification of wave reflection in the human aorta from pressure alone: A proof of principle. Hypertension 48(4):595-601