7T全身成像：初步结果。
Whole-body imaging at 7T: preliminary results.
作者信息
Vaughan J Thomas, Snyder Carl J, DelaBarre Lance J, Bolan Patrick J, Tian Jinfeng, Bolinger Lizann, Adriany Gregor, Andersen Peter, Strupp John, Ugurbil Kamil
机构信息
Radiology, Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, Minnesota 55455, USA.
出版信息
Magn Reson Med. 2009 Jan;61(1):244-8. doi: 10.1002/mrm.21751.
Abstract
The objective of this study was to investigate the feasibility of whole-body imaging at 7T. To achieve this objective, new technology and methods were developed. Radio frequency (RF) field distribution and specific absorption rate (SAR) were first explored through numerical modeling. A body coil was then designed and built. Multichannel transmit and receive coils were also developed and implemented. With this new technology in hand, an imaging survey of the "landscape" of the human body at 7T was conducted. Cardiac imaging at 7T appeared to be possible. The potential for breast imaging and spectroscopy was demonstrated. Preliminary results of the first human body imaging at 7T suggest both promise and directions for further development.
摘要
本研究的目的是探讨在7T进行全身成像的可行性。为实现这一目标，开发了新的技术和方法。首先通过数值模拟探索射频（RF）场分布和比吸收率（SAR）。然后设计并制造了一个体线圈。还开发并应用了多通道发射和接收线圈。有了这项新技术，对人体在7T时的“全景”进行了成像研究。7T心脏成像似乎是可行的。展示了乳腺成像和光谱学的潜力。7T首次人体成像的初步结果显示了进一步发展的前景和方向。
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