氧化铁纳米颗粒中频率相关谐波的产生

2013 International Workshop on Magnetic Particle Imaging (IWMPI) Pub Date : 2013-03-23 DOI:10.1109/IWMPI.2013.6528345

B. Gleich, J. Weizenecker, J. Borgert

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引用次数: 0

摘要

我们已经证明，MPI可以在比传统使用频率高得多的驱动场频率下工作，这有可能提高信噪比。然而，在如此高的频率下，由于患者受热，振幅和频率的乘积可能会限制连续操作。在这种情况下，扫描持续时间可能必须限制在几十秒，这对于血管造影应用仍然是足够的。

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Frequency dependent harmonics generation in iron oxide nanoparticles

We have demonstrated that MPI can work at drive field frequencies much higher than traditionally used frequencies, which has the potential to boost the signal to noise ratio. At such higher frequencies, however, the product of amplitude and frequency can become limiting for continuous operation due to patient heating. In this case, scan durations would have to be limited to maybe several 10 seconds which can still be sufficient for angiographic applications.

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2013 International Workshop on Magnetic Particle Imaging (IWMPI)

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