使用原子磁力计对人脑进行磁共振成像。
Magnetic-resonance imaging of the human brain with an atomic magnetometer.
作者信息
Savukov I, Karaulanov T
机构信息
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
出版信息
Appl Phys Lett. 2013 Jul 22;103(4):43703. doi: 10.1063/1.4816433. Epub 2013 Jul 23.
Abstract
Magnetic resonance imaging (MRI) is conventionally performed in very high fields, and this leads to some restrictions in applications. To remove such restrictions, the ultra-low field MRI approach has been proposed. Because of the loss of sensitivity, the detection methods based on superconducting quantum interference devices (SQUIDs) in a shielded room were used. Atomic magnetometers have similar sensitivity as SQUIDs and can also be used for MRI, but there are some technical difficulties to overcome. We demonstrate that MRI of the human brain can be obtained with an atomic magnetometer with in-plane resolution of 3 mm in 13 min.
摘要
传统上，磁共振成像（MRI）是在非常高的磁场中进行的，这导致了一些应用上的限制。为了消除这些限制，人们提出了超低场MRI方法。由于灵敏度的损失，屏蔽室内基于超导量子干涉器件（SQUID）的检测方法被采用。原子磁力计具有与SQUID相似的灵敏度，也可用于MRI，但存在一些技术难题需要克服。我们证明，使用原子磁力计可以在13分钟内获得人脑的MRI图像，平面分辨率为3毫米。
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