发明名称 |
IMPROVED TECHNIQUES FOR MAGNETIC PARTICLE IMAGING |
摘要 |
<p>A magnetic particle imaging apparatus includes magnets [106,107] that produce a gradient magnetic field having a field free region (FFR), excitation field electromagnets [102,114] that produce a radiofrequency magnetic field within the field free region, high-Q receiving coils [112] that detect a response of magnetic particles in the field free region to the excitation field. Field translation electromagnets create a homogeneous magnetic field displacing the field-free region through the field of view (FOV) allowing the imaging region to be scanned to optimize scan time, scanning power, amplifier heating, SAR, dB/dt, and/or slew rate. Efficient multi-resolution scanning techniques are also provided. Intermodulated low and radio-frequency excitation signals are processed to produce an image of a distribution of the magnetic nanoparticles within the imaging region. A single composite image is computed using deconvolution of multiple signals at different harmonics.</p> |
申请公布号 |
WO2010008478(A3) |
申请公布日期 |
2010.03.11 |
申请号 |
WO2009US03764 |
申请日期 |
2009.06.23 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, BERKELEY;CONOLLY, STEVEN, M.;GOODWILL, PATRICK, W. |
发明人 |
CONOLLY, STEVEN, M.;GOODWILL, PATRICK, W. |
分类号 |
A61B5/05;A61K49/18;G01R33/02;G05F1/00 |
主分类号 |
A61B5/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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