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A new magnetic resonance electrical impedance tomography (MREIT) algorithm: the RSM-MREIT algorithm with applications to estimation of human head conductivity
| Content Provider | Scilit |
|---|---|
| Author | Gao, Nuo Zhu, S. A. He, Bin |
| Copyright Year | 2006 |
| Description | Journal: Physics in Medicine & Biology We have developed a new Magnetic Resonance Electrical Impedance Tomography (MREIT) algorithm, RSM-MREIT algorithm, for noninvasive imaging of electrical conductivity distribution using only one component of magnetic flux density. The proposed RSM-MREIT algorithm uses Response Surface Methodology (RSM) algorithm for optimizing the conductivity distribution through minimizing the errors between the measured and calculated magnetic flux density. A series of computer simulations have been conducted to assess the performance of the proposed RSM-MREIT algorithm to estimate electrical conductivity values of the scalp, the skull, and the brain tissue, in a three-shell piece-wise homogeneous head model. Computer simulation studies were conducted in both a spherical and realistic geometry head model with a single variable (the brain-to-skull conductivity ratio) and three-variables (the conductivity of the brain, the skull, and the scalp). The relative error between the target and estimated head conductivity values were less than 12% for both the single-variable and three-variable simulations. These promising simulation results demonstrate the feasibility of the proposed RSM-MREIT algorithm in estimating electrical conductivity values in a piece-wise homogeneous head model of the human head, and suggest that the RSM-MREIT algorithm merits further investigation. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2001152/pdf |
| Ending Page | 3083 |
| Page Count | 17 |
| Starting Page | 3067 |
| ISSN | 00319155 |
| e-ISSN | 13616560 |
| DOI | 10.1088/0031-9155/51/12/005 |
| Journal | Physics in Medicine & Biology |
| Issue Number | 12 |
| Volume Number | 51 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2006-05-31 |
| Access Restriction | Open |
| Subject Keyword | Journal: Physics in Medicine & Biology Magnetic Resonance Electrical Impedance Tomography Response Surface Methodology Current Density Imaging Electrical Impedance Tomography Magnetic Flux Density |
| Content Type | Text |
| Resource Type | Article |
| Subject | Radiology, Nuclear Medicine and Imaging Radiological and Ultrasound Technology |
