Title :
Noise Analysis of Current Density Imaging: A Pilot Study
Author :
Zhang, Xiaotong ; Yan, Xingyao ; Yan, Dandan ; Zhang, Minming ; Sun, Fei ; Zhu, Shanan ; He, Bin
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
Current density imaging (CDI) is a relatively new modality of magnetic resonance imaging which enables electric current distribution imaging in conductive object containing water. In the present study, a phantom experiment in a 1.5T MRI scanner was conducted, and the relative error of the obtained total current injection estimation from CDI is 10.62% compared with the actual current injection. The noise arising from hardware and software is analyzed. Several effective techniques to improve CDI images are proposed for future CDI experiments.
Keywords :
biomedical MRI; current density; image denoising; image scanners; medical image processing; phantoms; MRI scanner; conductive object; current density imaging; current injection estimation; electric current distribution imaging; magnetic flux density 1.5 T; magnetic resonance imaging; noise analysis; phantom; relative error; Biomedical imaging; Current density; Educational institutions; Hardware; Image analysis; Imaging phantoms; Magnetic fields; Magnetic noise; Magnetic resonance imaging; Nuclear magnetic resonance;
Conference_Titel :
Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging, 2007. NFSI-ICFBI 2007. Joint Meeting of the 6th International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-0949-5
Electronic_ISBN :
978-1-4244-0949-5
DOI :
10.1109/NFSI-ICFBI.2007.4387774
