Simple noise reduction for diffusion weighted images

URI http://www.lib.tokushima-u.ac.jp/repository/metadata/110815
Title
Simple noise reduction for diffusion weighted images
Title_Alternative
Simple noise reduction for DWI
Authors
Konishi, Yuto
Kanazawa, Yuki
Usuda, Takatoshi
Matsumoto, Yuki
Hayashi, Hiroaki
Matsuda, Tsuyoshi
Ueno, Junji
Harada, Masafumi
Authors_Transcription
コニシ, ユウト
カナザワ, ユウキ
ウスダ, タカトシ
マツモト, ユウキ
ハヤシ, ヒロアキ
マツダ, ツヨシ
ウエノ, ジュンジ
ハラダ, マサフミ
Authors_Alternative
金澤, 裕樹
松元, 友暉
林, 裕晃
上野, 淳二
原田, 雅史
Authors_Affiliation
School of Health Sciences, Tokushima University
Institute of Biomedical Sciences, Tokushima University Graduate School
MR Applications and Workflow Asia Pacific GE Healthcare Japan Corporation
Department of Radiology and Radiation Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School
Keywords
Magnetic resonance imaging (MRI)
Diffusion weighted imaging
Probability distribution function (PDF)
Rician distribution
Gaussian distribution
Correction scheme
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.

Publisher
Springer Japan
Content Type
学術雑誌論文
ISSN・ISBN
18650333
18650341
NCID
AA12236881
Journal Title
Radiological Physics and Technology
Volume
9
ISSUE
2
SPage
221
EPage
226
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
309349
URL ( Publisher's Version )
set
徳島大学
FullText URL
Language
eng
TextVersion
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