Title :
An example of thermometry in volume by microwave radiometry
Author :
Bocquet, B. ; van de Velde, J.C. ; Mamouni, A. ; Leroy, Y.
Author_Institution :
Inst. d´´Electron. et de Microelectron. du Nord, Univ. des Sci. et Technol. de Lille, Villeneuve d´´Ascq, France
Abstract :
A method of determination of the size D depth z and temperature T0+ Delta T of a cylindrical thermal structure embedded in an homogeneous lossy material, in the present case, water, is presented. A microwave radiometric image at 3 GHz points out the location of the thermal structure; its threshold provides the diameter D of the structure. The depth z derives from the ratio of the maximal radiometric intensities at 1.5 and 3 GHz. The combination of D, z and of the radiometric intensities gives Delta T.
Keywords :
biomedical measurement; biothermics; medical image processing; microwave imaging; radiometry; temperature measurement; 1.5 GHz; 3 GHz; cylindrical thermal structure; homogeneous lossy material; microwave radiometric image; microwave radiometry; quantitative thermometry; radiometric intensities; thermometry in volume; water; Biological materials; Dielectric losses; Dielectric materials; Microwave radiometry; Muscles; Noise measurement; Permittivity; Probes; Signal processing; Temperature; Automatic Data Processing; Body Temperature; Humans; Image Processing, Computer-Assisted; Microwaves; Radiometry; Thermometers;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
