カワシマ　アキツグ   Akitsugu Kawashima   川島　明次    所属   医学部 医学科（東京女子医科大学病院）    職種   准教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Application of contrast-enhanced constructive interference in steady state magnetic resonance imaging to Leksell GammaPlan for localizing c2-c3 aneurysms: technical note.
掲載誌名	正式名：Neurosurgery 略　 称：Neurosurgery ISSNコード：15244040/0148396X
掲載区分	国外
巻・号・頁	65(6),pp.E1188-90; discussion E1190
著者・共著者	Kawashima Akitsugu, Okada Yoshikazu, Hayashi Motohiro, Kawamata Takakazu, Hori Tomokatsu
担当区分	筆頭著者,責任著者
発行年月	2009/12
概要	OBJECTIVE:We used gadolinium (Gd)-enhanced constructive interference in steady state (CISS) magnetic resonance imaging with the Leksell GammaPlan (LGP; Elekta AB, Stockholm, Sweden) system for accurate preoperative evaluation of the anatomic localization of intradural and/or extradural C2-C3 aneurysms.METHODS:Anatomic localization of 8 unruptured aneurysms of the C2-C3 segment was evaluated using Gd-enhanced CISS imaging with LGP. Four patients diagnosed with intradural aneurysms, 1 with a combined intraextradural aneurysm, and 1 with an intracavernous aneurysm underwent operation. The aneurysmal localizations diagnosed preoperatively by Gd-enhanced CISS imaging with LGP were compared with intraoperative findings.RESULTS:By use of Gd-enhanced CISS imaging with LGP, 3-dimensional visualization of the internal carotid artery, aneurysms at the C2-C3 segment, optic nerve, oculomotor nerve, cavernous sinus, and anterior clinoid process was possible in 8 patients. The localization of intradural or combined intra-extradural aneurysms was diagnosed on the basis of the oculomotor nerve and the cavernous sinus depicted in 3-dimensional images. The oculomotor nerve and the cavernous sinus serve as landmarks for the proximal ring on images of the carotico-oculomotor membrane. Intradural or intra-extradural localization of C2-C3 aneurysms with this novel technique was in complete agreement with intraoperative findings in 6 surgical cases.CONCLUSION:This study demonstrated the utility of Gd-enhanced CISS imaging used with LGP for accurate preoperative localization of intradural and/or extradural aneurysms at the C2-C3 segments.
DOI	10.1227/01.NEU.0000350875.34638.1A
PMID	19934936