Journal of Okayama Medical Association
Published by Okayama Medical Association

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Full-text articles are available 3 years after publication.

頭部MRI像の画質改善について

神崎 典子 岡山大学医学部放射線医学教室
Thumnail 101_295.pdf 2.85 MB
抄録
The purpose of this study is to present a method of boundary enhancement algorithms for magnetic resonance images using a V-filter and clinical applications. By iterated V-filtering, the signal-to-noise ratio can be increased with preservation of edge sharpness. This is due to the relationship of the signal-to-noise ratio to the mean-to-variance ratio. These techniques were applied to clinical cases using MRI in the evaluation of the brain tumor. The boundaries of the brain tumor and the edematous region were precisely extracted.
キーワード
V-filter
MRI
Boundary enhancement
Edematous region
ISSN
0030-1558
NCID
AN00032489