On the accuracy of noninvasive thermometry using molecular diffusion magnetic resonance imaging.
On the accuracy of noninvasive thermometry using molecular diffusion magnetic resonance imaging.
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DOI：
10.3109/02656739209021781
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发表时间：
1992-03
期刊：
影响因子：
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通讯作者：
Y. Zhang;T. Samulski;W. Joines;J. Mattiello;R. L. Levin;D. LeBihan
中科院分区：
文献类型：
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作者：
Y. Zhang;T. Samulski;W. Joines;J. Mattiello;R. L. Levin;D. LeBihan
研究了水自扩散的磁共振成像（MRI）温度测量方法。在聚丙烯酰胺凝胶幻影中获得扩散图像和导出温度。将MRI测得的温度与温度探头测得的温度进行比较，以验证其准确性。一般来说，在0.3 cm3感兴趣区域的MRI扩散图像和温度探头确定的温度之间的差异为0.2摄氏度。结论是，目前的MRI技术允许非侵入性温度断层扫描，在温度精度方面可与侵入性测温相比较，具有空间和时间分辨率，可用于热疗肿瘤学。
Temperature measurement using magnetic resonance imaging (MRI) of water self-diffusion is investigated. Diffusion images and derived temperatures are obtained in polyacrylamide gel phantom. The temperatures measured from MRI are compared with those from temperature probes to verify their accuracy. In general, the difference between temperatures determined from MRI diffusion images over 0.3 cm3 regions of interest and from temperature probes were 0.2 degrees C. It is concluded that current MRI technology allows noninvasive temperature tomography that is comparable with invasive thermometry with respect to temperature accuracy, has spatial and time resolutions that would be useful in hyperthermic oncology.