Temperature mapping using the water proton chemical shift: A chemical shift selective phase mapping method

Temperature mapping using the water proton chemical shift: A chemical shift selective phase mapping method
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DOI:
10.1002/mrm.1910380523
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发表时间:
1997-11-01
影响因子:
3.3
通讯作者:
Jolesz, FA
Jolesz, FA
中科院分区:
医学3区
文献类型:
--
作者:
Kuroda, K;Oshio, K;Jolesz, FA

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提出了一种基于质子化学位移的温度成像方法,称为化学位移选择性相映射,该技术利用频率选择性抑制为相映射方法提供频率选择性。水和非水信号的相分布的单独成像减少了由于在测量双组分样品中水质子化学位移变化时存在非水信号而导致的误差,水和油之间的相位差成像产生了内部参考水质子化学位移测量,以可视化温度变化分布,该分布不受运动诱导的敏感性变化的影响。
A proton-chemical-shift-based temperature imaging method, called chemical shift selective phase mapping, is proposed, The technique uses frequency-selective suppression to provide frequency selectivity to the phase mapping method. Separate imaging of the phase distributions of the water and nonwater signals reduced the error due to the presence of a nonwater signal in measuring the water proton chemical shift change in two-component samples, Imaging of the phase difference between water and oil yielded an internally referenced water proton chemical shift measurement to visualize the temperature change distribution, which was unaffected by motion-induced susceptibility changes.