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Microwave radiometric imaging (MWI) for the characterisation of breast tumours*

Published online by Cambridge University Press:  15 April 2000

S. Mouty ,
B. Bocquet ,
R. Ringot ,
N. Rocourt  and
P. Devos
S. Mouty
Affiliation:
Institut d'Électronique et de Microélectronique du Nord, Département Hyperfréquences et Semiconducteurs (UMR CNRS 9929), Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
B. Bocquet*
Affiliation:
Institut d'Électronique et de Microélectronique du Nord, Département Hyperfréquences et Semiconducteurs (UMR CNRS 9929), Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
R. Ringot
Affiliation:
Institut d'Électronique et de Microélectronique du Nord, Département Hyperfréquences et Semiconducteurs (UMR CNRS 9929), Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
N. Rocourt
Affiliation:
CHRU de Lille, Hôpital Jeanne de Flandre, av. Eugène Avinée, 59000 Lille
P. Devos
Affiliation:
CHRU de Lille, Centre d'Étude et de Recherche en Informatique Médicale, 2 rue Oscar Lambret, 59000 Lille
*
bertrand.bocquet@iemn.univ-lille1.fr
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Abstract

We have developed a new prototype of microwave radiometric imaging devoted to the measurement of the temperature inside a dissipative media. The main application we are looking for, is the non-invasive thermometry of human tissues. We obtain quite satisfactory results in the early characterisation of breast tumours in terms of malignancy or benignity. We have, at this moment in progress, a clinical evaluation of patients that gives good results at an intermediary stage. To improve the spatial resolution, we have developed an inversion process based on a regularisation method in the spatial frequency domain, associated with a Deriche filter for threshold extraction. We show that this process is well suited to our problem and can be applied to clinical images for a quantitative retrieval of the temperature.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 10 , Issue 1 , April 2000 , pp. 73 - 78
Copyright
© EDP Sciences, 2000

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Footnotes

*

This subject was presented at C21′98 at Cachan the November 18-19, 1998

References

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