For this reason microwave imaging has been developed and has a potential as a complementary modality to standard mammography. The aim was to investigate the ability of the flexible system to measure the fields around an inhomogeneous object and to produce quantitative images. Microwaves refer to alternating current signals in the frequency range from MHz to GHz, which allow penetration into many optically not transparent mediums such as biological tissues, soil, wood, concrete, etc. However it remains a field with many uncharted domains, and microwave imaging techniques need to overcome many challenges and be improved. This includes the enhancement of both more sophisticated hardware antenna, electromechanical parts and RF-design as well as in the software imaging algorithms to be considered as a reliable modality for biomedical application.
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The contrast in permittivity for different in-vivo tissues fat, glandular, malign tumor, vascular tissue etc.
Nikola Petrovic at IDT will defend his doctoral thesis
For this reason microwave imaging has been developed and has a potential as a complementary modality to standard mammography. Microwave imaging allows non-destructive evaluation of biological tissue inhomogeneities due to the non-ionizing nature of microwaves, since changes in the dielectric properties of tissue can be related to their physiological condition. One of the most promising applications deployed is detection of breast tumors. This is particularly eligible due to the easy approach of the breast for imaging, as well as the breast anatomy where the fatty tissue with the low loss has a low attenuation impact on the signal. Several microwave imaging applications have been proposed in the biomedical field. The contrast in permittivity for different in-vivo tissues fat, glandular, malign tumor, vascular tissue etc.