Premium
Reliability of water proton chemical shift temperature calibration for focused ultrasound ablation therapy
Author(s) -
Wu Tao,
Kendell Kurtis R.,
Felmlee Joel P.,
Lewis Bradley D.,
Ehman Richard L.
Publication year - 2000
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.598864
Subject(s) - calibration , reliability (semiconductor) , proton therapy , ablation , materials science , proton , ultrasound , medical physics , nuclear medicine , biomedical engineering , nuclear magnetic resonance , medicine , radiology , physics , nuclear physics , mathematics , statistics , power (physics) , quantum mechanics
Our purpose in this work was to assess the reliability of the calibration coefficient for magnetic resonance water proton chemical shift temperature mapping. Over a six month period, the calibration coefficient was measured 15 times in several different phantoms. A highly linear relationship between water proton chemical shift and temperature change was found. The average temperature calibration coefficient determined from all studies was 0.009 ± 0.001 ppm / ° C . Four of the 15 studies were conducted on the same day using the same phantom. The average temperature calibration coefficient of these four studies was 0.0096 ± 0.0001 ppm / ° C .