一、引言临床应用红外热象法是基于测量或计算皮肤表面的温度分布。应用红外热象法进行乳癌的诊断业已引起人们充分注意。理论与实践结果指出,来自诸如恶性肿瘤的生物“热源”的传导热使局部皮温升高是可测量的。虽然肿瘤在其覆盖皮表产生一热斑的看法尚未作为一种可靠的诊断标准为人们所接受,但可以确信,即使是微小的感觉不到的乳房肿瘤,亦能引起乳房皮肤上出现异常的温度分布图案。一般说来,在正常或病理血管中,对流热传输是对于任何局部组织温度异常以及皮温分布异常的主要贡献。不过目 I. Introduction Clinical application Infrared thermography is based on measuring or calculating the temperature distribution of the skin surface. The application of infrared thermography for the diagnosis of breast cancer has caused full attention. Theoretical and practical findings indicate that the conduction of heat from biological “heat sources” such as malignancies makes measurable increases in local dermal temperature. Although the notion that tumors develop a hot spot on their covering skin has not yet been accepted as a reliable diagnostic criteria, it is believed that even small, undetectable breast tumors can cause abnormalities in the breast’s skin Temperature distribution pattern. In general, convection heat transfer is a major contribution to any abnormal local tissue temperature and abnormal skin temperature distribution in normal or pathologic vessels. However, head