Neurological Surgery 脳神経外科37巻3号

2009年03月発行

研究

Screening black-blood MRIによるプラーク内出血の検出

著者： 遠藤英樹¹ 吉田和道¹ 黒崎義隆¹ 定政信猛¹ 鳴海治¹ 沈正樹¹ 山形専¹

所属機関： ¹倉敷中央病院脳神経外科

ページ範囲：P.249 - P.253

Ⅰ．はじめに

　頚動脈病変はその脆弱性（vulnerability）により脳梗塞発症の危険性が大きく異なり，狭窄率や形態の評価に加え，その性状評価が重要である^9,16)．性状評価に関してhigh-resolution black-blood （BB）MRIの有用性が報告されており^6,15)，当院では2D spin-echo BB法T1，T2強調画像で評価を行ってきた^12-14)．特にT1強調画像はvulnerable plaqueの特徴の1つであるプラーク内出血の検出に有用である．しかし，2D spin-echo BB-MRIは撮像時間が長く，急性期症例などには不適当と思われる．そこで短時間で撮像できる3D gradient-echo BB法T1強調画像によるscreening BB-MRIの有用性を検討した．

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