Thermographically measured normal skin temperature asymmetry in the human male
✍ Scribed by E. B. Silberstein; G. K. Bahr; J. Kattan
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 382 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0008-543X
No coin nor oath required. For personal study only.
✦ Synopsis
T h e detection of thermal asymmetry may lead to the diagnosis of significant disease states, especially those of a neoplastic or vascular nature. Estimates of acceptable thermal asymmetry have been made; thermal asymmetry has not previously been quantified in normal subjects. I n 10 normal male volunteers, ages 17-38, thermal difference between symmetric areas of the chest, abdomen, and back never exceeded 1°C. Statistical treatment of these data suggests that thermal differences in excess of this in the male are abnormal.
Cancer 5615061510, 1975.
NFRARED THERMOCRAPHY HAS BEEN EMPLOYED
I with some success in the diagnosis of numerous medical c o n d i t i o n ~, ' -3 . 6 ~~. " ~1 -1 ~~~~~ 15~17-10 with greatest recent emphasis on cancer detection. T h e temperature of a particular part of the body, that of skin and underlying tissue, depends on the heat transfer and flow of that area. This, in turn, is related to the thermal emissivity and conductivity of the tissue, heat production of those tissues, the structure, distribution and tone of the blood vessels supplying the area, local sweat production, and the external temperature and humidity. By k e e p ing ambient temperature and humidity constant, prohibiting the use of drugs affecting vascular tone (including cigarette smoking), and allowing a 20-minute period for thermal equilibration between the unclothed part of the body to be studied and the ambient environment,O many of these variables can be controlled to obtain accurate measurements of the "effective temperature"6.16 of that area of the body. Several kinds of infrared-sensitive instruments have been employed for these measures.8 Inasmuch as skin temperature is always changing in response to multiple inputs, abso-From the