Medical imaging with a microwave tomographic scanner

Author

Jofre, Luis ; Hawley, Mark S. ; Broquetas, Antoni ; De Los Reyes, Elías ; Ferrando, Miguel ; Elias-Fusté, Antonio R.

Author_Institution

ETSE Telecommun. Univ., Politecnica de Catalunya, Barcelona, Spain

Volume

37

Issue

3

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

303

Lastpage

312

Abstract

A microwave tomographic scanner for biomedical applications is presented. It consists of a 64-element circular array with a useful diameter of 20 cm. Electronically scanning the transmitting and receiving antennas allows multiview measurements with no mechanical movement. Imaging parameters-a spatial resolution of 7 mm and a contrast resolution of 1% for a measurement time of 3 s-are appropriate for medical use. Measurements on tissue-simulating phantoms and volunteers, together with numerical simulations, are presented to assess the system for absolute imaging of tissue distribution and for differential imaging of physiological, pathological, and induced changes in tissues.

Keywords

biomedical equipment; microwave imaging; patient diagnosis; 20 cm; absolute imaging; biomedical applications; circular array; contrast resolution; differential imaging; imaging parameters; medical imaging; microwave tomographic scanner; multiview measurements; numerical simulations; receiving antennas; spatial resolution; tissue distribution; tissue-simulating phantoms; transmitting antennas; volunteers; Antenna measurements; Biomedical imaging; Biomedical measurements; Image resolution; Mechanical variables measurement; Microwave imaging; Receiving antennas; Spatial resolution; Tomography; Transmitting antennas; Algorithms; Humans; Image Processing, Computer-Assisted; Microwaves; Models, Biological; Models, Structural; Reference Values; Thermography; Tomography;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.52331

Filename

52331