Movement Tracking and False Positive Reduction Method for Microwave Colonoscopy Systems
Journal article, 2025
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.
Probes
microwave imaging
Colorectal cancer
movement compensation
Colon
false positive reduction
Microwave imaging
Microwave antenna arrays
phantom measurements
Phantoms
Antenna measurements
Microwave theory and techniques
Tracking
Microwave measurement
Antenna arrays
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. 9 2 214-220Subject Categories (SSIF 2025)
Other Electrical Engineering, Electronic Engineering, Information Engineering
Medical Instrumentation
DOI
10.1109/JERM.2024.3476964