Thermography: Basic Principles of Data Acquisition

Thermography: Basic Principles of Data Acquisition

Konstantinos Toutouzas (Athens Medical School, Greece), Maria Drakopoulou (Athens Medical School, Greece) and Christodoulos Stefanadis (Athens Medical School, Greece)
DOI: 10.4018/978-1-61350-095-8.ch008
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Abstract

This chapter is devoted to Thermography, and more specifically, to the basic principles and mechanisms of data acquisition. A detailed description of the potential mechanisms of increased heat generation by vulnerable plaques is provides, along with a list of Thermography devices. Additionally, a special subsection of the chapter deals with the limitation of intracoronary thermography, an extremely crucial issue for both the clinical and research utility of Thermography.
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Potential Mechanisms Of Increased Heat Generation By Vulnerable Plaques

Vulnerable plaques are characterized by several pathologic features including: (1) a thin fibrous cap (<65 lm); (2) a large lipid pool; and (3) activated macrophages near the fibrous cap. a large lipid core, a thin fibrous cap, high neo-vessel formation, and infiltration by inflammatory cells. Several of these features (ie, presence and activation of inflammatory cells, neo-vessel formation, and fibrous cap thinning) can potentially lead to increased production and dissipation to heat the plaque surface (Naghavi, et al., 2003). This concept is based on the hypothesis that if atherosclerotic lesions are inflamed by virtue of inflammatory cell infiltration, they will give off more heat than normal areas of the arterial system (ten Have, Gijsen, Wentzel, Slager, & van der Steen, Temperature distribution in atherosclerotic coronary arteries: influence of plaque geometry and flow (a numerical study), 2004), (Shah, 2003).

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