Thermology is a diagnostic infrared imaging technique for early detection of breast cancer. It doesn't use any form of radiation and there is no compression of the breasts. The National Cancer Institute website lists it as as able to detect breast cancer earlier than any other modality and it has been approved by the US Food and Drug Administration for almost thirty years. Thermology is based upon characteristic heat patterns caused by the abnormal blood flow of cancer, similar to MRI. There is a great deal of scientific basis for thermology but there are not pervasive standards of practice that assure quality from every facility so it is important to do some research first. Check out the Wikipedia listing and infraredmedicalsolutions.com for more information.