Quantizing the Depth of Bioelectrical Sources for Non-Invasive 3D Imaging

Quantizing the Depth of Bioelectrical Sources for Non-Invasive 3D Imaging
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量化生物电源的深度以实现非侵入式 3D 成像

DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
M. Fasiuddin
M. Fasiuddin
中科院分区:
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文献类型:
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作者:
W. Besio;M. Fasiuddin

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用于近似拉普拉斯电势的五点法 (FPM) 由于远离表面电极的源而急剧衰减电势。如果在 FPM 的变体中使用九个点,则可以实现类似的衰减。 FPM 和九点法 (NPM) 的衰减特性存在差异,因为九点比五点覆盖更多空间。因此,对于任何特定深度的偶极子源,FPM 和 NPM 的行为都不同,从而导致偶极子深度的量化。这种深度量化可用于根据表面电势测量来确定生物电源的深度。直接深度感知将有助于非侵入性 3D 成像。
The five point method (FPM) for approximating Laplacian potentials sharply attenuates the potentials due to sources far from the surface electrodes. Similar attenuation is achieved if nine points are used in a variation of the FPM. There is a difference in the attenuation characteristics of the FPM and nine point method (NPM) since the nine points cover more space than the five points. As a result the FPM and NPM behave differently for a dipole source at any specific depth giving rise to quantization of dipole depths. This quantization of depth can be used to determine the depth of the bioelectrical sources from the surface potential measurements. Direct depth perception will be helpful in non-invasive 3D imaging.
体表拉普拉斯心电图测绘——回顾。
DOI: 10.1615/critrevbiomedeng.v23.i5-6.30
发表时间: 1995
期刊: Critical reviews in biomedical engineering.
影响因子: --
作者:
He,B;Cohen,RJ
通讯作者: Cohen,RJ