ID 110815
Title Alternative
Simple noise reduction for DWI
Author
Konishi, Yuto School of Health Sciences, Tokushima University
Kanazawa, Yuki Institute of Biomedical Sciences, Tokushima University Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Usuda, Takatoshi School of Health Sciences, Tokushima University
Matsumoto, Yuki School of Health Sciences, Tokushima University Tokushima University Educator and Researcher Directory
Hayashi, Hiroaki Institute of Biomedical Sciences, Tokushima University Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Matsuda, Tsuyoshi MR Applications and Workflow Asia Pacific GE Healthcare Japan Corporation
Ueno, Junji Institute of Biomedical Sciences, Tokushima University Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Harada, Masafumi Department of Radiology and Radiation Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Keywords
Magnetic resonance imaging (MRI)
Diffusion weighted imaging
Probability distribution function (PDF)
Rician distribution
Gaussian distribution
Correction scheme
Content Type
Journal Article
Description
Our purpose in this study was to reduce the noise in order to improve the SNR of Dw images with high b-value by using two correction schemes. This study was performed with use of phantoms made from water and sucrose at different concentrations, which were 10, 30, and 50 weight percent (wt%). In noise reduction for Dw imaging of the phantoms, we compared two correction schemes that are based on the Rician distribution and the Gaussian distribution. The highest error values for each concentration with use of the Rician distribution scheme were 7.3 % for 10 wt%, 2.4 % for 30 wt%, and 0.1 % for 50 wt%. The highest error values for each concentration with use of the Gaussian distribution scheme were 20.3 % for 10 wt%, 11.6 % for 30 wt%, and 3.4 % for 50 wt%. In Dw imaging, the noise reduction makes it possible to apply the correction scheme of Rician distribution.
Journal Title
Radiological Physics and Technology
ISSN
18650333
18650341
NCID
AA12236881
Publisher
Springer Japan
Volume
9
Issue
2
Start Page
221
End Page
226
Sort Key
221
Published Date
2016-03-16
Remark
Copyright © Japanese Society of Radiological Technology and Japan Society of Medical Physics 2016
The final publication is available at Springer via http://dx.doi.org/10.1007/s12194-016-0350-9.
EDB ID
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Medical Sciences