①Early detection: thermography is non-invasive, safe, objective, intuitive, computerized archiving, automatic comparative analysis, suitable for census, health care, and timely detection of anomalies and abnormalities, in order to facilitate the patient to go for further in-depth investigations and early treatment, so that many diseases are eliminated at an early stage [6].
②Disease diagnosis: thermograms can provide the distribution of the heat field of the lesion, in order to infer its circulatory and metabolic status, to determine the nature of the lesion, the degree of involvement of the region, in order to make the correct diagnosis and treatment program [1].
3) Evaluation of therapeutic efficacy: assessment of inflammation, metabolism, and improvement of blood circulation after the action of drugs, and evaluation and study of therapeutic efficacy of traditional and modern therapies.
4 tracking observation: thermal imaging camera passive ingestion of infrared thermal radiation emitted by the human body itself, without any damage to the body, can be repeated; computerized infrared thermograms, by the disk to save the image, can be repeatedly read. It can carry out local and systemic dynamic monitoring of the condition, discover new changes in time, and make corrections to the diagnosis and treatment[3].
5 scientific research and exploration: thermal activity throughout the entire life process of the human body, the law of thermal activity is the basic law of life activity. So far, there is no systematic thermogram law report on human thermal activity, infrared thermogram system can objectively record and study the physiological and pathological laws of human thermal activity. The infrared thermogram system can objectively record and study the physiological and pathological patterns of human thermal activity, and provide a new means of research for medical scientific exploration.
The four major advantages of the application field
①Using CT, MRI, etc. to understand the patient's tissue structure changes, and through the infrared thermography to understand the local blood circulation and nerve state and other functional state changes, i.e., structural imaging and functional imaging combined, in order to make the clinical assertion of the more comprehensive basis for the imaging[9].
②Acute and chronic inflammation site, scope, degree
Inflammation is a very common pathological phenomenon, redness, swelling, heat and pain is the most common manifestation of inflammation. But in the actual human body, when the clinical analysis of inflammation, through the blood routine blood sedimentation and other tests to determine the inflammation, but where the inflammation, which is often a diagnosis of a very concerned about the problem. The use of infrared thermogram can easily solve this problem: all acute inflammation foci of the temperature must be high temperature; chronic inflammation foci, due to the mechanization of adhesion, local blood circulation decreased, the temperature should be decreased; if the chronic inflammation foci, acute attack, there can be a staggered high and low temperatures, etc. [10]. This function will bring good clinical convenience.
3 limb blood supply state functional state monitoring
Infrared thermography detection of vascular lesions, especially the blood supply state of the limb blood vessels, functional state has certain advantages [2]. When arterial lesion affects blood supply, its distal end must be low temperature; when venous lesion, its distal end must be high temperature change due to stasis and congestion; when blood vessel is dissected, there must be corresponding low temperature in the area governed by blood supply; when blood vessel is dissected and recovered, there must be a phenomenon of rewarming in the area governed by blood transportation. Compared with other means such as ultrasound Doppler, skin thermometer measurements and other infrared thermograms appear to be both convenient and intuitive.
④Tumor early warning indication, whole process monitoring, treatment evaluation[11]
There are few means for early detection. Infrared thermography has obvious advantages. When normal cells begin to deteriorate, normal cell metabolism becomes abnormal cell metabolism when cells proliferate at a high rate, in order to meet the needs of cell growth, inevitably accompanied by an increase in blood circulation, and at the same time, due to the role of tumor toxicity factors, bring about local vasodilatation. The result of the above changes must lead to the increase of local heat. However, in the middle and late stages of tumor, due to the liquefaction and necrosis of the tumor center, only low temperature appears. Medical infrared camera, with high sensitivity, can detect and record such changes when the temperature changes more than 0.05 ℃, showing the site of abnormally high temperature [7].