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An analysis of the relationship between central aortic and peripheral upper limb pressure waves in man.
In adult humans a single generalized TF can be used with acceptable accuracy to determine central from peripheral pressure under different conditions, as indicated by results of pooled extraction of BATF and RATF.
Duration of diastole and its phases as a function of heart rate during supine bicycle exercise.
- C. Chung, M. Karamanoglu, S. Kovacs
- MedicineAmerican journal of physiology. Heart and…
- 1 November 2004
It is concluded that the elimination of diastasis and merging of E and A waves of nearly fixed durations primarily govern changes in MDD, supporting the perspective that E- and A-wave durations are primarily governed by the rules of mechanical oscillation that are minimally HR dependent.
Pressure wave propagation in a multibranched model of the human upper limb.
- M. Karamanoglu, D. Gallagher, A. Avolio, M. O'Rourke
- Materials Science, MedicineThe American journal of physiology
- 1 October 1995
Results indicate that the large arterial properties have less influence than the properties of the peripheral load on the pressure wave propagation in the upper limb.
A system for analysis of arterial blood pressure waveforms in humans.
- M. Karamanoglu
- MedicineComputers and biomedical research, an…
- 1 June 1997
The system embodies an online technique for synthesizing ascending aortic pressure waveform from recordings made at different peripheral sites of the human arterial system, and derives 18 indices describing left ventricular systolic function and arterial properties from arterial pressure waveforms.
Endografting of the descending thoracic aorta increases ascending aortic input impedance and attenuates pressure transmission in dogs.
- G. Dobson, J. Flewitt, J. Tyberg, R. Moore, M. Karamanoglu
- MedicineEuropean journal of vascular and endovascular…
- 1 August 2006
Endografting in the proximal descending aorta cause unfavorable changes in the ascending aortic input impedance and an increase in the PWV through the grafted segment, consistent with an increase of the modulus of elasticity.
On-line synthesis of the human ascending aortic pressure pulse from the finger pulse.
A better on-line methods is needed for accurate noninvasive synthesis of the AA pressure contour to characterize left ventricular contractile function and ventricular-vascular coupling.
The peak atrioventricular pressure gradient to transmitral flow relation: kinematic model prediction with in vivo validation.
- Lisa Bauman, C. Chung, M. Karamanoglu, S. Kovacs
- Mathematics, MedicineJournal of the American Society of…
- 1 August 2004
It is concluded that E-wave analysis by parametrized diastolic filling predicts peak atrioventricular pressure gradient reliably and more accurately than 4V(2).
Derivation of the ascending aortic-carotid pressure transfer function with an arterial model.
To devise a method of deriving the ascending aortic pressure waveform from the noninvasively determined carotid arterial waveform, ascending aortic and carotid arterial pressures were recorded in 13…
Errors in estimating propagation distances in pulse wave velocity.
- M. Karamanoglu
- Physics, MedicineHypertension
- 1 June 2003
To the Editor: Recent correspondence1,2 over the report by Lantelme et al3 exposes a more serious problem with the use of the automated pulse wave velocity (PWV) measuring instrument (Complior®).…
Modeling Time Varying Elastance: The Meaning of “Load-Independence”
Elastance [E(t)] was formalized by Suga et al. as the time-varying stiffness parameter in the relationship of left ventricular pressure P(t) to ventricular volume V(t) and a “slack volume” V0 defined…