TY - GEN
T1 - BIAS-FIELD ROTATION ENCODING
T2 - 23rd IEEE International Symposium on Biomedical Imaging, ISBI 2026
AU - Jing, Yang
AU - Wang, Ruiyi
AU - Zou, Wenxuan
AU - Chen, Ziwei
AU - Tang, Zhenchao
AU - Tian, Jie
N1 - Publisher Copyright:
© 2026 IEEE.
PY - 2026
Y1 - 2026
N2 - Magnetic Particle Imaging (MPI) provides high sensitivity and quantitative imaging by detecting the nonlinear magnetization response of magnetic nanoparticles (MNPs). Conventional field-free region encoding suffers from gradient decay, which limits imaging ability in large-aperture systems. Building on offset-field and field-strength encoding strategies, as well as our earlier permanent-magnet rotation scheme, this work introduces a large-scale MPI system fully driven by bias coils. Four horizontal encoding coils enable electrically controlled bias-field rotation, while depth-encoding coils extend planar encoding to three dimensions. Numerical simulations demonstrate a spatial resolution of approximately 3 mm within a 232 mm aperture, confirming the feasibility of the proposed design for large-scale MPI applications.
AB - Magnetic Particle Imaging (MPI) provides high sensitivity and quantitative imaging by detecting the nonlinear magnetization response of magnetic nanoparticles (MNPs). Conventional field-free region encoding suffers from gradient decay, which limits imaging ability in large-aperture systems. Building on offset-field and field-strength encoding strategies, as well as our earlier permanent-magnet rotation scheme, this work introduces a large-scale MPI system fully driven by bias coils. Four horizontal encoding coils enable electrically controlled bias-field rotation, while depth-encoding coils extend planar encoding to three dimensions. Numerical simulations demonstrate a spatial resolution of approximately 3 mm within a 232 mm aperture, confirming the feasibility of the proposed design for large-scale MPI applications.
UR - https://www.scopus.com/pages/publications/105041624543
U2 - 10.1109/ISBI61048.2026.11515597
DO - 10.1109/ISBI61048.2026.11515597
M3 - 会议稿件
AN - SCOPUS:105041624543
T3 - Proceedings - International Symposium on Biomedical Imaging
BT - ISBI 2026 - 23rd IEEE International Symposium on Biomedical Imaging
PB - IEEE Computer Society
Y2 - 8 April 2026 through 11 April 2026
ER -