Design and implementation of a low-cost, tabletop MRI scanner for education and research prototyping

被引：30

作者：

Cooley, Clarissa Zimmerman ^{[1
,2
]}

Stockmann, Jason P. ^{[1
,2
]}

Witzel, Thomas ^{[1
,2
]}

LaPierre, Cris ^{[1
]}

Mareyam, Azma ^{[1
]}

Jia, Feng ^{[3
]}

Zaitsev, Maxim ^{[3
]}

Yang Wenhui ^{[4
]}

Zheng, Wang ^{[4
]}

Stang, Pascal ^{[5
,6
]}

Scott, Greig ^{[6
]}

Adalsteinsson, Elfar ^{[7
,8
]}

White, Jacob K. ^{[7
]}

Wald, Lawrence L. ^{[1
,2
,8
]}

机构：

[1] Massachusetts Gen Hosp, Martinos Ctr Biomed Imaging, Dept Radiol, Charlestown, MA 02129 USA

[2] Harvard Med Sch, Boston, MA 02115 USA

[3] Univ Freiburg, Med Ctr Univ Freiburg, Fac Med, Dept Radiol, Freiburg, Germany

[4] Chinese Acad Sci, Inst Elect Engn, Beijing, Peoples R China

[5] Procyon Engn, San Jose, CA USA

[6] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

[7] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[8] Harvard MIT Div Hlth Sci Technol, Cambridge, MA USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2020年 / 310卷

基金：

美国国家卫生研究院;

关键词：

MRI; Portable; Low-cost; Educational; HALBACH MAGNET; PERMANENT-MAGNET; NMR; SYSTEM; ARRAY; FIELD;

D O I：

10.1016/j.jmr.2019.106625

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

While access to a laboratory MRI system is ideal for teaching MR physics as well as many aspects of signal processing, providing multiple MRI scanners can be prohibitively expensive for educational settings. To address this need, we developed a small, low-cost, open-interface tabletop MRI scanner for academic use. We constructed and tested 20 of these scanners for parallel use by teams of 2-3 students in a teaching laboratory. With simplification and down-scaling to a 1 cm FOV, fully-functional scanners were achieved within a budget of $10,000 USD each. The design was successful for teaching MR principles and basic signal processing skills and serves as an accessible testbed for more advanced MR research projects. Customizable GUIs, pulse sequences, and reconstruction code accessible to the students facilitated tailoring the scanner to the needs of laboratory exercise. The scanners have been used by >800 students in 6 different courses and all designs, schematics, sequences, GUIs, and reconstruction code is opensource. (C) 2019 Published by Elsevier Inc.

引用

页数：10

共 54 条

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