Title :
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
fDate :
3/1/1990 12:00:00 AM
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;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
