Development status and prospects of cryogen-free MRI systems

doi:10.3877/cma.j.issn.2095-2015.2026.01.001

Abstract

Abstract:

The development of cryogen-free magnetic resonance imaging (MRI) systems marks a critical innovation in superconducting magnet technology, addressing the persistent limitations imposed by cryogenic dependency in conventional MRI systems. This review synthesizes the technological advancements in reducing the demand for liquid helium in MRI systems, including conduction cooling technology, installation and application of cryogen-free MRI systems, and more. The cryogen-free MRI systems can not only reduce the operating and maintenance costs of the equipment, but also improve the safety and stability of the system. In the future, with further technological maturity, cryogen-free MRI systems will yield greater economic and social benefits.

Key words: Magnetic resonance imaging, Cryogen-free technology, Conduction cooling technology, Superconducting magnet

Gang Sun. Development status and prospects of cryogen-free MRI systems[J]. Chinese Journal of Digestion and Medical Imageology(Electronic Edition), 2026, 16(01): 1-5.

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References 39

[1]	Banno N. Low-temperature superconductors: Nb3Sn, Nb3Al, and NbTi[J]. Superconductivity, 2023, 6: 100047.
[2]	Qin MJ, Xu X, Shi XD. High-temperature superconductors, Editor(s): Tapash Chakraborty, Encyclopedia of Condensed Matter Physics(Second Edition)[M]. Academic Press, 2024: 565-579.
[3]	Luo C, Liu G, Deng Y, et al. Design and optimization of liquid helium-free cooling systems for magnetic resonance imaging device using multi-physical modeling[J]. Case Studies in Thermal Engineering, 2025, 66: 105761.
[4]	Mahesh M, Barke PB. The MRI Helium Crisis: Past and Future[J]. J Am Coll Radiol, 2016, 13(12): 1536-1537.
[5]	Mukhatov A. A comprehensive review on magnetic imaging techniques for biomedical applications[J]. Nano Select, 2023. 4(3): 213-230.
[6]	Cao Q, Li Y, Fang C, et al. Status quo and utilization trend of global helium resources[J]. Front Environ Sci, 2022, 10: 1028471.
[7]	Yang RY, He YY, Li WT. Global Helium Supply and Helium Supply Safety for China[C]//International Field Exploration and Development Conference. Springer: Singapore, 2024.
[8]	Siddhantakar A, Santillán-Saldivar J, Kippes T, et al. Helium resource global supply and demand: Geopolitical supply risk analysis [J]. Resources, Conservation and Recycling, 2023, 193: 106935.
[9]	凌辉, 周勇义, 张黎伟, 等. 氦资源对科学仪器及科研项目的影响与对策[J]. 科学管理研究, 2012, 30(6): 4.
[10]	Kabasawa H. MR Imaging in the 21st Century: Technical Innovation over the First Two Decades[J]. Magn Reson Med Sci, 2022, 21: 71-82.
[11]	Cosmus TC, Parizh M. Advances in Whole-Body MRI Magnets[J]. IEEE Trans Appl Supercond, 2010, 9: 2104-2109.
[12]	GB 8958-2006缺氧危险作业安全规程[S]. 北京: 中国国家标准化管理委员会, 2006.
[13]	O'Reilly T, Webb A. Deconstructing and reconstructing MRI hardware [J]. J Magn Reson, 2019, 306: 134-138.
[14]	Jimeno MM, Vaughan JT, Geethanath S. Superconducting magnet designs and MRI accessibility: A review[J]. NMR Biomed, 2023, 36(9): e4921-e4921.
[15]	Cosmus TC, Parizh M, AMorrow G. Progress in MRI magnets[J]. IEEE Trans Appl Supercond, 2000, 10: 744-751.
[16]	Lvovsky Y, Jarvis P. Superconducting systems for MRI—Present solutions and new trends[J]. IEEE Trans Appl Supercond, 2005, 15: 1317-1325.
[17]	Bagdinov A, Demikhov E, Kostrov E, et al. Performance test of 1.5T cryogen-free orthopedic MRI magnet[J]. IEEE Trans Appl Supercon, 2017, 28(99): 1-4.
[18]	Rybakov A, Bagdinov A, Demikhov E, et al. 1.5T Cryogen Free Superconducting Magnet for Dedicated MRI[J]. IEEE Trans Appl Supercon, 2016, 26(4): 1-3.
[19]	O'Reilly T, Webb A. Deconstructing and reconstructing MRI hardware[J]. J Magn Reson, 2019, 306: 134-138.
[20]	Nazi A, Ali Chaudhry M, Nadeem B, et al. Global helium shortage leading to the shutting of imaging modalities is the world’s next medical crisis-driving factors, future of helium-free magnetic resonance imaging systems, and alternatives to magnetic resonance imaging[J]. Int J Surg: Global Health, 2023, 6: e0155.
[21]	Qu H, Wu H, Feng Z, et al. Thermal Analysis of the 4 K Cryostat Within a 1.5T Conduction-Cooled Superconducting Magnet for Whole-Body MRI Application[J]. IEEE Trans Appl Supercon, 2024, 34: 1-5.
[22]	Wang Y, Wang S, Liang P, et al. Design, construction and performance testing of a 1.5T cryogen-free low-temperature superconductor whole-body MRI magnet[J]. Supercond Sci Technol, 2023, 36: 045002.
[23]	GB/T 1048-2019管道元件公称压力的定义和选用[S]. 北京: 中国国家标准化管理委员会, 2019.
[24]	慧娴. 研发MRI无氦超导磁体的可行性及技术要点[J]. 中国医疗器械杂志, 2018, 42(5): 345-349.
[25]	Baig T, Yao Z, Doll D, et al. Conduction cooled magnet design for 1.5T, 3.0T and 7.0 T MRI systems[J]. Supercond Sci Technol, 2014, 27(12): 125012.
[26]	Dai Y, Yan L, Zhao B, et al. Tests on a 6T Conduction-Cooled Superconducting Magnet[J]. IEEE Trans Appl Supercon, 2006, 16(2): 961-964.
[27]	Liang Q, Li Y, Wang Q. Cryogenic Oscillating Heat Pipe for Conduction-Cooled Superconducting Magnets[J]. IEEE Trans Appl Supercon, 2018, 28(3): 1-5.
[28]	Xu Z, Wang H, Feng Z, et al. Design and simulation of a 7.0T conduction cooled superconducting magnet[J]. Sci Rep, 2025, 15(1): 15699.
[29]	Baig T, Amin AA, Deissler RJ, et al. Conceptual designs of conduction cooled MgB2 magnets for 1.5 and 3.0T full body MRI systems[J]. Supercond Sci Technol, 2017, 30(4): 043002.
[30]	Kim HS, Kovacs C, Rindfleisch M, et al. Demonstration of a conduction cooled react and wind MgB2 coil segment for MRI applications[J]. IEEE Trans Appl Supercon, 2016, 26(4): 4400305.
[31]	Li Y, Roell S. Key designs of a short-bore and cryogen-free hightemperature superconducting magnet system for 14T whole-bodyMR [J]. Supercond Sci Technol, 2021, 34: 125005-125005.
[32]	Awaji S, Watanabe K, Oguro H, et al. First performance test of a 25 Tcryogen-free super-conducting magnet[J]. Supercond Sci Technol, 2017, 30: 65000-65001.
[33]	孙钢. 超高场磁共振成像的发展现状与展望[J/OL]. 中华消化病与影像杂志(电子版), 2023, 13(6): 369-372.
[34]	Yan Y, Wang D, Zhu Y, et al. Progress of high-temperature superconducting joints[J]. Eur Phys J B, 2025, 98: 127.
[35]	Parkinson B. Design considerations and experimental results for MRI systems using HTS magnets[J]. Supercond Sci Technol, 2017, 30(1): 014009.
[36]	Yao C, Ma Y. Superconducting materials: Challenges and opportunities for large-scale applications[J]. iScience, 2021, 24(6): 102541.
[37]	Law JY, Moreno-Ramirez LM, Diaz-Garcia A, et al. Current perspective in magnetocaloric materials research[J]. J Appl Phys, 2023, 133(4): 040903.
[38]	Cooper BE, Chase S, Namburi D, et al. Optimal leveraging of a Gifford-McMahon cryocooler's regenerative cooling power for SNSPD applications[C]. 2024 IOP Conf Ser Mater Sci Eng, 1301 012151.
[39]	Zhu M, Cheng W, Hua Z, et al. Thermal Loss Analysis, Design, and Test of a Novel HTS Magnet System for the Double-Stator Field-Modulation HTS Electrical Machine[J]. IEEE Trans Appl Supercon, 2023, 33(6): 1-10.

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