A Simple MR-Compatible Thermometer: Design and Applications

Abstract

Abstract:

Thermometry in vivo is one of the most important techniques in minimally invasive thermotherapy. Magnetic resonance imaging is ideal for thermometry measurement in vivo since it has advantageous features such as non-invasiveness, high spatial resolution, good softtissue contrast, three-dimensional imaging capability, and intra-operative temperature assessment capacity. However, it is essential to validate and calibrate MRI-based thermometry with independent measurement made by MR-compatible thermometers. In this paper, we present the design and applications of a MR-compatible thermometer, which is simple to implement and has a low cost. The thermometer consists of a general thermocouple and an electronic thermometry device, and has an accuracy about ±0.5 ℃ at the temperature range from 39 ℃ to 79 ℃. Experimental results showed that there was no significant quality degradation to the MR images while the thermometer being in operation. The MR-compatible thermometer proposed is especially suitable for use in combination with low-field MRI-based thermometry.

Key words: magnetic resonance imaging, temperature imaging, thermometry, MR-compatible

CLC Number:

R445.2

NING Rui-Peng, ZHU Yan, LI Geng-Ying. A Simple MR-Compatible Thermometer: Design and Applications[J]. Chinese Journal of Magnetic Resonance, 2010, 27(2): 157-162.

References

[1] Mika W V, Peter M T P, Franck L L, et al. Use of fast spin echo for phase shift magnetic resonance thermometry[J]. J Magn Reson Imaging, 2003, 18(4): 507-512.

[2] Viola R, Kim B P. MR thermometry[J]. J Magn Reson Imaging, 2008, 27(2): 376-390.

[3] Germain D, Chevallier P, Laureent A, et al. MR monitoring of tumor thermal therapy[J]. Magn Reson Mater Phy, 2001, 13(1): 47-59.

[4] Naoto H, Yasushi W, Tomohiko M, et al. Utilization of low-field MR scanners[J]. Magn Reson Med Sci, 2004, 3(1): 27-38.

[5] Shantanu S, Thomas O, Usha S, et al. Phase imaging on a 2-T MR scanner: application to temperature monitoring during Ablation procedures[J]. J Magn Reson Imaging 1997, 7(5): 918-928.

[6] Ajit S, Jeffrey L D, Jonathan S L. Developing a multichannel temperature probe for interventional MRI[J]. J Magn Reson Imaging, 1998, 8(1): 197-202.

[7] Lin Zheng-yu(林征宇), Wu Le-bin(武乐斌), Li Cheng-li(李成利), et al. Developing a MR-compatible medical thermometry system (MR兼容医用测温系统的研制)[J]. J Med Imaging(医学影像学杂志), 2005, 15 (2): 150-151.

[8] Ning Rui-peng(宁瑞鹏), Xu Qin(徐勤), Shen Jie(沈杰), et al. A PCI based complete digital frequency source for nuclear magnetic resonance spectrometer(基于PCI总线的全功能数字化频率源)[J]. Chinese J Magn Reson(波谱学杂志), 2006, 23 (2): 209-215.

[9] Ren Jie-jing(任洁静), Xu Qin(徐勤), Li Geng-ying(李鲠颖). A Digital receiver based on direct RF sampling for low-field MRI scanner (用于低场磁共振成像的直接射频采样数字接收机)[J]. Chinese J Magn Reson(波谱学杂志), 2007, 24(1): 27-33.

[10] Dai Yi-dong(戴祎栋), Ning Rui-peng(宁瑞鹏), Li Geng-ying(李鲠颖). A gradient waveform generator based on DSP technology(基于DSP技术的梯度波形发生器)[J]. Chinese J Magn Reson(波谱学杂志), 2009, 26(1): 44-50.

[1]	JIANG Rui, ZOU Chao, QIAO Yang-zi, XU Zong-wei, QIU Zhi-lang, LIU Xin, ZHENG Hai-rong. Fast Three-Dimensional Magnetic Resonance Thermometry Using an Echo-Shifted Gradient-Recalled Sequence [J]. Chinese Journal of Magnetic Resonance, 2019, 36(3): 253-260.
[2]	SU Xin-yu, WANG Li-jia, NIE Sheng-dong, HU Li-wei, ZHONG Yu-min. Progress of Right Ventricle Segmentation from Short-Axis Images Acquired with Cardiac Cine MRI [J]. Chinese Journal of Magnetic Resonance, 2019, 36(3): 377-391.
[3]	ZHAO Min-min, ZHANG Yan-hui, ZHANG Peng-li, TAN Bo, JIANG Hai-zhen, ZHANG Hai-lu, DENG Zong-wu. A Magnetic Resonance-Fluorescent Dual-Mode Imaging Probe for Stem Cell Tracking [J]. Chinese Journal of Magnetic Resonance, 2019, 36(2): 127-137.
[4]	WANG Hong-zhi, SHI Qun-yan, MIAO Zhi-ying, CHEN Shan-shan, XIA Tian. MRISim:A Software Package of Magnetic Resonance Imaging Simulator [J]. Chinese Journal of Magnetic Resonance, 2019, 36(2): 225-237.
[5]	WEI Guo-jing, YI Pei-wei, TAO Quan, FENG Yan-qiu. Comparisons of Different CEST Quantification Metrics Applied in Acute Parkinson's Disease Mouse Model [J]. Chinese Journal of Magnetic Resonance, 2019, 36(2): 195-207.
[6]	TAO Quan, YI Pei-wei, WEI Guo-jing, FENG Yan-qiu. pH Imaging Based on Chemical Exchange Saturation Transfer: Principles, Methods, Applications and Recent Progresses [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 505-519.
[7]	ZHAI Guo-qiang, ZHANG Miao, BO Bin-shi, WANG Yi, FAN Ming-xia, LI Jian-qi. Quantifying Liver Fat with Combined Complex-Based and Magnitude-Based Water-Fat Separation [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 417-426.
[8]	HUANG Zhao-hui, ZHANG Zhi, CHEN Li, CHEN Jun-fei, ZHANG Zhen, CHEN Fang, LIU Chao-yang. A Time-Division Multiplexing Design for Gradient Preemphasis Module in Magnetic Resonance Imaging Scanner [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 465-474.
[9]	WANG Li-jia, SU Xin-yu, LI Ya, HU Li-wei, NIE Sheng-dong. Segmentation of Right Ventricle in Cardiac Cine MRI Using COLLATE Fusion-Based Multi-Atlas [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 407-416.
[10]	LIU Ying, SONG Ming-hui, WANG Kun, ZHANG Hao-wei. A Magnetic Resonance Receiver System Design Based on All Programmable System-on-a-Chip and LabVIEW [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 475-485.
[11]	WANG Hong-zhi, ZHAO Di, YANG Li-qin, XIA Tian, ZHOU Xiao-yue, MIAO Zhi-ying. An Approach for Training Data Enrichment and Batch Labeling in AI+MRI Aided Diagnosis [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 447-456.
[12]	CHEN Hai-yan, ZHAO Shi-long, LI Xiao-nan, LIU Guo-qiang, HU Li-li, LIU Tao. B₁ Mapping on Low-Field Permanent Magnet MRI Scanner [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 498-504.
[13]	HONG Sheng-xiu, HU Hong-bing, YANG Zeng-tao, ZHANG Tian-feng, HUANG Lei, WANG Hua. Effects of Tissue Coagulative Necrosis on Longitudinal Relaxation Time-Based Magnetic Resonance Thermometry [J]. Chinese Journal of Magnetic Resonance, 2018, 35(4): 440-446.
[14]	ZHANG Bo, XIE Hai-bin, YAN Xu, LI Wen-jing, YANG Guang. Rotation Invariant Non-Local Means for Noise Reduction in Magnetic Resonance Images [J]. Chinese Journal of Magnetic Resonance, 2018, 35(2): 162-169.
[15]	SUN Wei-hang, SUN Yu, WANG Feng, WANG Chao-hong, YANG Tao. Optimization of Delays Alternating with Nutation for Tailored Excitation (DANTE) Sequence in Engineering [J]. Chinese Journal of Magnetic Resonance, 2018, 35(2): 150-161.