@inproceedings{badeau86, author = {A. F. Badeau and P. A. Patel and S. A. Prahl and J. W. Valvano}, title = {Thermal Techniques to Measure Regional Myocardial Perfusion}, journal = {}, year = {1986 abstract only}, abstract = {Two thermal techniques to monitor perfusion are being evaluated in dog myocardium. Both are based on the convective transport of heat associated with blood flow at the microvascular level. The first technique employs self-heated thermistors to simultaneously produce a thermal perturbation and measure the temperature response. As perfusion increases, more heat is carried away from the self-heated thermistor. Experiments in dog myocardium demonstrate that the thermistor measurements are quite sensitive to perfusion. \vskip2mm The thermal camera technique involves lowering the myocardial surface temperature by application of a cooled wetted sponge. The thermal recovery of the tissue surface is imaged using a thermal camera. The recovery process can be modeled as a first order exponential, where the time constant depends on the local perfusion rate. Recovery time constants, calculated from sequential thermal images, give a 2-D map of the epicardial perfusion field.}, }