The invention is based on the realisation that inflamed plaques in blood vessel walls, which are potentially vulnerable to rupture, can be detected at elevated temperatures which are lower than previously realised. In particular, the low temperatures at which inflamed plaque can be detected are often associated with systems in which blood flow is generally close to normal in particular temperature differences above zero but not more than 0.39.degree. C. have been found to be indicative of the presence of inflamed plaque.
CROSS-REFERENCE TO RELATED APPLICATION
The present application is a continuation-in-part of applications Ser. No. 10/169,523 filed 15 Oct. 2002 and entitled "Vascular temperature measuring device and process for measuring vascular temperature", which is a U.S. national phase application of PCT/EP01/04401 with an international filing date of 4 Apr. 2001. This application is also a continuation-in-part of Ser. No. 10/188,349 filed 2 Jul. 2002 now U.S. Pat. No. 7,090,645 and entitled "A biased vascular temperature measuring device. "
