Publications Repository - Gdańsk University of Technology

A method for monitoring the state of the myocardium during cardiosurgical interventions based on thermal IR imaging is presented. These methods called Static Thermography and Active Dynamic Thermography (ADT) uses information about distribution of temperature on the surface and an external excitation source to induce thermal transient processes in a tested object. Recording time series of thermograms allows to calculate parametric images – distribution of the thermal time constant at the visible surface of the myocardium - correlated to the physiology state of tested tissues. Temperature allows monitoring of vascularization in each phase of cardiosurgery interventions. This is a perfect method for the evaluation of the quality of the inserted graft, of the efficiency of cardioplegia, and of the quality of many surgical procedures in clinical practice. Such monitoring is prompt, easy, and objective, especially if dynamic processes are investigated. During LAD occlusion the ADT procedure was applied using cooling external excitation source. In summary, the calculated time constant images provide data of the tested structure and functional information of myocardium infarct. This allows to track changes in blood flow in the myocardium and inspection of the quality of the intervention during cardiosurgical procedures

Authors

• dr hab. inż. Mariusz Kaczmarek link open in new tab