未破裂中大脳動脈瘤の外科治療を安全に行うための工夫 ―MRA・MRI fusion画像の応用―

西村 真実; 米澤 慎悟; 小濱 みさき; 三野 正樹; 堀 恵美子; 佐藤 兼也; 前田 紀子; 緑川 宏; 西嶌 美知春

doi:10.2335/scs.37.283

Original Articles

Surgical Planning for the Treatment of Unruptured Middle Cerebral Artery Aneurysms Using Fusion Image of Magnetic Resonance Angiography and Magnetic Resonance Imaging

Shinjitsu NISHIMURA ^†, Shingo YONEZAWA ^†, Misaki KOHAMA ^†, Masaki MINO ^†, Emiko HORI ^†, Kenya SATOH ^†, Noriko MAEDA ^†, Hiroshi MIDORIKAWA ^†, Michiharu NISHIJIMA ^†

Author information

Shinjitsu NISHIMURA ^†
Department of Neurosurgery, Aomori Prefectural Central Hospital
Shingo YONEZAWA ^†
Department of Neurosurgery, Aomori Prefectural Central Hospital
Misaki KOHAMA ^†
Department of Neurosurgery, Aomori Prefectural Central Hospital
Masaki MINO ^†
Department of Neurosurgery, Aomori Prefectural Central Hospital
Emiko HORI ^†
Department of Neurosurgery, Aomori Prefectural Central Hospital
Kenya SATOH ^†
Department of Neuroradiology, Aomori Prefectural Central Hospital
Noriko MAEDA ^†
Department of Neuroradiology, Aomori Prefectural Central Hospital
Hiroshi MIDORIKAWA ^†
Department of Neuroradiology, Aomori Prefectural Central Hospital
Michiharu NISHIJIMA ^†
Department of Neurosurgery, Aomori Prefectural Central Hospital
Author contributions

†These authors contributed equally: Shinjitsu NISHIMURA, Shingo YONEZAWA, Misaki KOHAMA, Masaki MINO, Emiko HORI, Kenya SATOH, Noriko MAEDA, Hiroshi MIDORIKAWA, Michiharu NISHIJIMA

Keywords: unruptured MCA aneurysm, fusion imaging, MRA, MRI

JOURNAL FREE ACCESS

2009 Volume 37 Issue 4 Pages 283-287

DOI https://doi.org/10.2335/scs.37.283

Details

Abstract

Fusion imaging of magnetic resonance angiography (MRA) and MR imaging (MRI) is valuable to assess the location of the horizontal portion of the middle cerebral artery (MCA), MC bifurcation aneurysm (AN) and limen insulae. In this study, we evaluated the usefulness of fusion imaging in MC bifurcation aneurysm surgery.
Between October 2007 and February 2008, 18 patients underwent clipping for unruptured MC bifurcation ANs at the authors’ institution. Preoperatively, 3DFSPGR MRI and 3DSPGR MRA data were fused. The distance of limen insulae and distal end of the horizontal portion of MCA were calculated.
The mean distance in 9 distal approaches was ＋4.3±1.8 mm and －7.2±6.3 mm in 9 superior approaches, respectively. Preoperative simulation images were coincident with operative findings in all cases.
Fusion images of MRA and MRI are useful for planning the treatment of unruptured MCA ANs.

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