Title :
Cardiothermographic assessment of arterial and venous revascularization
Author :
Szabó, Tamás ; Fazekas, L. ; Gellér, László ; Horkay, Ferenc ; Merkely, Béla ; Gyöngy, Tibor ; Juhász-Nagy, Alexander
Author_Institution :
Semmelweis Univ. of Med., Budapest, Hungary
Abstract :
High blood-flow rate and considerable metabolic activity render the myocardium a possible candidate for infrared (IR) imaging. Cardiothermography is the term used for recording the heart surface temperature. It is a useful tool in monitoring coronary perfusion through epicardial heat emission changes. Elevated heat-emission indicates increased coronary blood flow, while decreased emission represents hypoperfusion. The aim of our study is the early intraoperative cardiothermographic evaluation of arterial and venous bypass graft patency and the quantitative assessment of the temperature changes of the revascularized area. Infrared imaging was complemented by electromagnetic flow measurements on the venous grafts.
Keywords :
biomedical imaging; biothermics; blood vessels; cardiovascular system; haemodynamics; infrared imaging; patient monitoring; surgery; arterial bypass graft patency; arterial revascularization; cardiothermographic assessment; coronary blood flow; coronary perfusion monitoring; early intraoperative cardiothermographic evaluation; electromagnetic flow measurements; elevated heat-emission; epicardial heat emission changes; heart surface temperature; high blood-flow rate; hypoperfusion; infrared imaging; metabolic activity; myocardium; quantitative assessment; revascularized area; temperature changes; venous bypass graft patency; venous grafts; venous revascularization; Blood flow; Cardiology; Electromagnetic measurements; Fluid flow measurement; Heart; Infrared imaging; Monitoring; Myocardium; Optical imaging; Temperature; Body Temperature; Coronary Angiography; Coronary Disease; Diagnostic Imaging; Female; Heart; Humans; Infrared Rays; Male; Middle Aged; Myocardial Revascularization; Rheology; Thermography;
Journal_Title :
Engineering in Medicine and Biology Magazine, IEEE
