Application of susceptibility weighted imaging (SWI) for evaluation of draining veins of arteriovenous malformation: utility of magnitude images.

• Material Type: 博士論文
• Title: Application of susceptibility weighted imaging (SWI) for evaluation of draining veins of arteriovenous malformation: utility of magnitude images.
• Author/Editor: Miyasaka, Toshiteru; Taoka, Toshiaki; Nakagawa, Hiroyuki; Wada, Takeshi; Takayama, Katsutoshi; Myochin, Kaoru; Sakamoto, Masahiko; Ochi, Tomoko; Akashi, Toshiaki; Kichikawa, Kimihiko
• Author Heading: Miyasaka, Toshiteru; Taoka, Toshiaki; Nakagawa, Hiroyuki; Wada, Takeshi; Takayama, Katsutoshi; Myochin, Kaoru; Sakamoto, Masahiko; Ochi, Tomoko; Akashi, Toshiaki; Kichikawa, Kimihiko
• Publication, Distribution, etc.: Springer-Verlag
• Publication Date: 2012-11-01
• Publication Date (W3CDTF): 2012-11-01
• Periodical title: Neuroradiology
• No. or year of volume/issue: 54 11
• Volume: 54
• Issue: 11
• Pages: 1221-1227
• ISSN (Periodical Title): ISSN : 0028-3940
• Degree grantor/type: 奈良県立医科大学
• Date Granted: 2013-07-22
• Dissertation Number: 乙第1316号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: Susceptibility weighted image; Magnitude image; Arteriovenous malformation; Magnetic resonance imaging
• Target Audience: 一般
• Note (General): type:Thesis; INTRODUCTION: The current study evaluated the signal characteristics of susceptibility weighted imaging (SWI) of arteriovenous malformation (AVM), especially for draining veins. For this purpose, we identified the draining veins of the AVM on angiography and evaluated the signal on magnitude image for SWI (SWI-mag) and minimum intensity projection image (SWI-minIP). METHODS: Subjects were 14 cases with angiographically proven AVM. SWI-mag, SWI-minIP, and time-of-flight (TOF) magnetic resonance angiography were acquired. For the draining veins of the AVM identified on angiography, we analyzed signal intensity on the images listed above, and classified it into hyperintensity (hyper), mixed intensity (mixed), hypointensity (hypo), and no visualization. RESULTS: On the analysis of 27 angiographically proven draining veins, 19 draining veins were classified as hyper, 3 as mixed, 0 as hypo, and 6 as no visualization on SWI-mag. On TOF images, 21 draining veins were classified as hyper, 2 as mixed, 0 as hypo, and 4 as no visualization, while 6 draining veins did not show hyperintensity on TOF, and SWI-mag visualized 3 of these 6 veins as hyper. CONCLUSION: SWI-mag depicted most draining veins of AVM as hyperintensity. We speculate that this is mainly due to the higher concentration of oxygenated hemoglobin (oxy-Hb) and inflow effect of the draining vein. SWI-mag seems to be useful in the analysis and follow-up for AVM as the signal on the image may reflect physiological status.; 博士（医学）・乙第1316号・平成25年7月22日; identifier:Neuroradiology Vol.54 No.11 p.1221-1227; identifier:00283940; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/2638; identifier:Neuroradiology, 54(11): 1221-1227
• Access Restrictions: インターネット公開
• Related Material (DOI): 10.1007/s00234-012-1029-5
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 奈良県立医科大学 : 奈良県立医科大学機関リポジトリ GINMU

Table of Contents

http://ginmu.naramed-u.ac.jp/dspace/bitstream/10564/2638/1/01%e6%9c%ac%e6%96%87%e3%81%ae%e8%a6%81%e6%97%a8.pdf fulltext

http://ginmu.naramed-u.ac.jp/dspace/bitstream/10564/2638/2/02%e5%af%a9%e6%9f%bb%e8%a6%81%e6%97%a8.pdf fulltext

http://ginmu.naramed-u.ac.jp/dspace/bitstream/10564/2638/5/03%e6%9c%ac%e6%96%87.pdf fulltext