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Correction of susceptibility-induced GRE phase shift for accurate PRFS thermometry proximal to cryoablation iceball |
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Published in | Magnetic Resonance Materials in Physics, Biology and Medicine. 2012, vol. 25, no. 1, p. 23-31 | |
Abstract | The susceptibility contrast between frozen and unfrozen tissue disturbs the local magnetic field in the proximity of the ice-ball during cryotherapy. This effect should be corrected for in real time to allow PRFS-based monitoring of near-zero temperatures during intervention. | |
Keywords | Algorithms — Artifacts — Cryosurgery — Cryotherapy/methods — Fourier Analysis — Freezing — Humans — Image Processing, Computer-Assisted — Imaging, Three-Dimensional/methods — Magnetic Fields — Magnetic Resonance Imaging/methods — Magnetics — Models, Statistical — Models, Theoretical — Muscles/pathology — Reproducibility of Results — Temperature | |
Identifiers | PMID: 21898135 | |
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Research groups | Imagerie et radiologie interventionnelle du foie, des voies biliaires et du pancréas (316) Imagerie per-opératoire multi-modalité en radiologie interventionnelle (949) | |
Project | FNS: CR33I3_143980 | |
Citation (ISO format) | KICKHEFEL, Antje et al. Correction of susceptibility-induced GRE phase shift for accurate PRFS thermometry proximal to cryoablation iceball. In: Magma: Magnetic Resonance Materials in Physics, Biology and Medicine, 2012, vol. 25, n° 1, p. 23-31. https://archive-ouverte.unige.ch/unige:43439 |