J
Jonathan W. Valvano
Researcher at University of Texas at Austin
Publications - 90
Citations - 1882
Jonathan W. Valvano is an academic researcher from University of Texas at Austin. The author has contributed to research in topics: Thermal conductivity & Thermal diffusivity. The author has an hindex of 22, co-authored 87 publications receiving 1799 citations. Previous affiliations of Jonathan W. Valvano include University of Texas System.
Papers
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Journal ArticleDOI
Thermal conductivity and diffusivity of biomaterials measured with self-heated thermistors
TL;DR: In this article, self-heated thermistor probes, inserted into the tissue of interest, are used to deliver heat as well as to monitor the rate of heat removal, and thermal properties were measured in dog, pig, rabbit, and human tissues.
Journal ArticleDOI
The Simultaneous Measurement of Thermal Conductivity, Thermal Diffusivity, and Perfusion in Small Volumes of Tissue
TL;DR: An improved technique is presented for the "in-vivo" determination of thermal conductivity, thermal diffusivity, and perfusion using a self-heated spherical thermistor probe, showing the ability to quantify perfusion in small volumes of tissue.
Journal ArticleDOI
Dynamic correction for parallel conductance, GP, and gain factor, α, in invasive murine left ventricular volume measurements
John E. Porterfield,Anil Kottam,Karthik Raghavan,Daniel Escobedo,James T. Jenkins,Erik R. Larson,Rodolfo J. Trevino,Jonathan W. Valvano,John A. Pearce,Marc D. Feldman,Marc D. Feldman +10 more
TL;DR: It is concluded that, for closed-chest mice, admittance (dynamic G(P)) and Wei's equation provide more accurate volumes than traditional conductance, are more sensitive to inotropic changes, eliminate the need for hypertonic saline, and can be accurately extended to aortic banded mice.
Journal ArticleDOI
Effect of laser radiation on tissue during laser angioplasty.
TL;DR: The thermal properties of adipose and ceramic atherosclerotic plaque deposits and normal arterial vessel wall were measured and it is indicated that fatty plaques exhibit the lowest thermal conductivity and thermal diffusivity of the three types, whereas calcified plaques seem to have the highest values.
Patent
Multifrequency conductance catheter-based system and method to determine LV function in a patient
TL;DR: In this article, a multifrequency conductance catheter was used to measure the instantaneous volume of a heart chamber with multifrequencies and the instantaneous pressure of the heart chamber was measured.