Simple noise reduction for diffusion weighted images

URI http://www.lib.tokushima-u.ac.jp/repository/metadata/110815
タイトル
Simple noise reduction for diffusion weighted images
タイトル別表記
Simple noise reduction for DWI
作成者
Konishi, Yuto
Kanazawa, Yuki
Usuda, Takatoshi
Matsumoto, Yuki
Hayashi, Hiroaki
Matsuda, Tsuyoshi
Ueno, Junji
Harada, Masafumi
作成者ヨミ
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
作成者別表記
金澤, 裕樹
松元, 友暉
林, 裕晃
上野, 淳二
原田, 雅史
作成者所属
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
キーワード
Magnetic resonance imaging (MRI)
Diffusion weighted imaging
Probability distribution function (PDF)
Rician distribution
Gaussian distribution
Correction scheme
抄録

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.

出版者
Springer Japan
資料タイプ
学術雑誌論文
ISSN・ISBN
18650333
18650341
cat書誌id
AA12236881
掲載誌名
Radiological Physics and Technology
9
2
開始ページ
221
終了ページ
226
発行日
2016-03-16
備考

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
出版社版URL
部局
徳島大学
ファイル
本文言語
eng
著者版フラグ
著者版
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