DocumentCode
3049751
Title
Notice of Retraction
Study of MIT Phase Sensitivity for Detecting a Brain Edema Based on FDTD Method
Author
Mingxin Qin ; Yun Wang ; Xiaoyan Hu ; Mingke Jiao ; Wenwen Liang ; Hua Zhang ; Haibing Wang
Author_Institution
Dept. of Biomed. Eng., Fourth Mil. Med. Univ., Xian
fYear
2007
fDate
6-8 July 2007
Firstpage
660
Lastpage
663
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
To obtain design criteria of a MIT system and features of MIT measurements the study of the simulation method for a MIT experiment system, the performance investigation of a single channel MIT measurement for detecting a brain edema and the calculation of the phase parameter were developed based on the FDTD method, the approximation of a helix antenna and a MIT measurement model. The measurement model consisted of a excitation coil, a detection coil, a three layers spherical model of a head and a spherical model of a brain edema. The current phase deviations of a detection coil were estimated as the space location, the size and the conductivity of a brain edema were changed. The influence of an edema upon the current phase deviation is greater when the edema is not on the same plane as the excitation and detection coils based on simulation results. The resolution of the phase deviation change should reach 0.01 degree if an edema with 30 mm radius needs to be detected when the edema is on the same plane as the excitation and detection coils.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
To obtain design criteria of a MIT system and features of MIT measurements the study of the simulation method for a MIT experiment system, the performance investigation of a single channel MIT measurement for detecting a brain edema and the calculation of the phase parameter were developed based on the FDTD method, the approximation of a helix antenna and a MIT measurement model. The measurement model consisted of a excitation coil, a detection coil, a three layers spherical model of a head and a spherical model of a brain edema. The current phase deviations of a detection coil were estimated as the space location, the size and the conductivity of a brain edema were changed. The influence of an edema upon the current phase deviation is greater when the edema is not on the same plane as the excitation and detection coils based on simulation results. The resolution of the phase deviation change should reach 0.01 degree if an edema with 30 mm radius needs to be detected when the edema is on the same plane as the excitation and detection coils.
Keywords
bioelectric phenomena; biomagnetism; biomedical imaging; brain models; diseases; finite difference time-domain analysis; tomography; FDTD method; brain edema; finite difference time domain method; head; helix antenna; magnetic induction tomography; phase deviation resolution; phase sensitivity; three layer spherical model; Antenna measurements; Brain modeling; Coils; Conductivity; Design methodology; Finite difference methods; Helical antennas; Phase detection; Phase estimation; Phase measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, 2007. ICBBE 2007. The 1st International Conference on
Conference_Location
Wuhan
Print_ISBN
1-4244-1120-3
Type
conf
DOI
10.1109/ICBBE.2007.172
Filename
4272656
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