Method and apparatus for non-contacting identification of the temperature distribution in an examination subject
First Claim
1. A method for non-contacting identification of a three-dimensional temperature distribution in a patient comprising the steps of:
- subjecting said patient to microwave radiation having a phase and amplitude from a microwave source;
detecting the three-dimensional phase and amplitude of microwave radiation attenuated by said patient;
computing the three-dimensional dielectric constant distribution in said patient from the detecting three-dimensional phase and amplitude values;
computing the characteristic thermal radiation of a selected location of said patient from selected phase and amplitude values of microwave radiation attenuated by said patient; and
computing the three-dimensional temperature distribution of said patient from said three-dimensional dielectric constant distribution and said characteristic thermal radiation of said selected location.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for undertaking a non-contacting measurement of the three-dimensional temperature distribution in a non-uniform examination subject direct microwave radiation at the examination subject, detect the three-dimensional phase and amplitude of microwave radiation which is attenuated and scattered by the examination subject, and calculate the three-dimensional dielectric constant distribution in the examination subject on the bases of the detected phase and amplitude values. In a separate step the characteristic thermal radiation of object is measured, too. The three-dimensional temperature distribution of the examination subject is then calculated from both the three-dimensional dielectric constant distribution data and the characteristic thermal readiation data of a selected location.
120 Citations
23 Claims
-
1. A method for non-contacting identification of a three-dimensional temperature distribution in a patient comprising the steps of:
-
subjecting said patient to microwave radiation having a phase and amplitude from a microwave source; detecting the three-dimensional phase and amplitude of microwave radiation attenuated by said patient; computing the three-dimensional dielectric constant distribution in said patient from the detecting three-dimensional phase and amplitude values; computing the characteristic thermal radiation of a selected location of said patient from selected phase and amplitude values of microwave radiation attenuated by said patient; and computing the three-dimensional temperature distribution of said patient from said three-dimensional dielectric constant distribution and said characteristic thermal radiation of said selected location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An apparatus for non-contacting identification of a three-dimensional temperature distribution in a patient subject comprising:
-
means for subjecting said patient to microwave radiation having a phase and amplitude from a microwave source microwave radiation; means for detecting the three-dimensional phase and amplitude values of microwave radiation from said microwave source attenuated by said patient; means for computing the three-dimensional dielectric constant distribution in said patient from the three-dimensional phase and amplitude values detected by said means for detecting; means for computing the characteristic thermal radiation of a selected location of said patient from selected ones of the phase and amplitude values detected by said means for detecting; and means for computing the three-dimensional dielectric distribution of said patient from said three-dimensional characteristic thermal radiation of a selected location of said patient. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification