Movement Tracking and False Positive Reduction Method for Microwave Colonoscopy Systems
Journal article, 2024
This paper presents a novel computational method for addressing the challenge of uncontrolled antenna movement in microwave imaging systems for colonoscopy. The proposed method tracks the movement of the antenna array by analyzing phase shifts in S-parameters across multiple channels. By exploiting the symmetry of the probe and correlating phase changes with displacement, this technique reduces false positives due to probe movements artifacts in real-time. Simulated and experimental results in a colon phantom model show that this method can correct displacements of up to 6 mm, reducing the artifacts in reconstructed images notably.
Phantoms
movement compensation
Microwave antenna arrays
microwave imaging
Microwave measurement
Antenna arrays
Probes
phantom measurements
Antenna measurements
Microwave imaging
Tracking
Colon
Colorectal cancer
false positive reduction
Microwave theory and techniques
Author
A. Garrido-Atienza
MiWEndo Solutions
M. Guardiola
University Pompeu Fabra
L.M. Neira
MiWEndo Solutions
J. Romeu
Polytechnic University of Catalonia
Andreas Fhager
Chalmers, Electrical Engineering, Signal Processing and Biomedical Engineering
IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology
24697249 (eISSN)
Vol. In press 1-7Subject Categories (SSIF 2025)
Other Electrical Engineering, Electronic Engineering, Information Engineering
Medical Instrumentation
DOI
10.1109/JERM.2024.3476964