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ID 116223
タイトル別表記
SWS of Leiomyoma with Red Degeneration
著者
松崎, 健司 Tokushima Bunri University KAKEN研究者をさがす
キーワード
leiomyoma
red degeneration
susceptibility-weighted magnetic resonance sequence
uterus
uterine sarcoma
資料タイプ
学術雑誌論文
抄録
Purpose: Red degeneration of uterine leiomyoma (RDL) is a hemorrhagic infarction caused by peripheral venous thrombosis. The peripheral high-intensity rim on T1-weighted MRI is characteristic for RDL; however, it may not be observed at all the phases of RDL. Susceptibility-weighted MR sequences (SWS) have exquisite sensitivity to blood products, and we hypothesized that the low-intensity rim due to the T2* shortening effects of blood products may be more clearly demonstrated on SWS. The purpose of this study is to evaluate the capability of SWS for the diagnosis of RDL.
Methods: Surgically proven 15 RDL, which showed suggestive MRI findings (high-intensity rim or entirely high signal intensity on T1-weighted imaging) were retrospectively evaluated. MRI was qualitatively evaluated for the presence of high-intensity rim around a mass on fat-saturated T1-weighted images, and low-intensity rim on T2-weighted images and on SWS (susceptibility-weighted imaging [SWI] or T2-star-weighted angiography [SWAN]).
Results: The high-intensity rim on T1-weighted images, low-intensity rim on T2-weighted images and on SWS were observed in 47%, 47%, and 100% of RDL, respectively. The other 53% of lesions showed entirely high signal intensity on T1-weighted images. Pathological examination revealed coagulative necrosis in all 15 lesions.
Conclusion: SWS may be helpful for the diagnosis of RDL by revealing characteristic peripheral low-intensity rim.
掲載誌名
Magnetic Resonance in Medical Sciences
ISSN
18802206
13473182
cat書誌ID
AA11648770
出版者
Japanese Society for Magnetic Resonance in Medicine
18
2
開始ページ
158
終了ページ
162
発行日
2018-10-01
権利情報
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives International License(https://creativecommons.org/licenses/by-nc-nd/4.0/).
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出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
病院
医学系