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題 名 | Fluid-attenuated Inversion Recovery Magnetic Resonance Images in Children with Intracranial Inflammatory Disease=兒童顱內發炎病灶之磁振液體訊號減弱之反轉回復影像 |
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作 者 | 彭信逢; 楊千立; 廖漢文; 黃國茂; 李瑤華; | 書刊名 | 中華放射線醫學雜誌 |
卷 期 | 25:4 2000.08[民89.08] |
頁 次 | 頁147-152 |
分類號 | 414.93 |
關鍵詞 | 顱內發炎病灶; 波序; Brain infection; Brain inflammation; MR pulse sequence; FLAIR; |
語 文 | 英文(English) |
中文摘要 | 為了評估FLAIR波序偵測顱內發炎病灶的效用並增進此類病灶的偵測,本研究於最近三年之內施用FTAIR影像、快速自旋T2影像與打完顯影劑(Gd-DTPA)T1W影像於三十六位罹患顱內發炎病症的兒童並加以比較。此研究發現,FLAIR影像在偵測顱內發炎病灶明顯比T2W影像好,尤其是位於腦部周圍的病灶。而化膿性腦膜炎病灶,只有FLAIR影像及打完顯影劑(Gd-DTPA)T1W影像可見,快速自旋T2影像則幾乎正常。這是由於FLAIR波序能有效抑制蜘蛛膜下腔內腦脊髓液的訊號,又能顯出病變的T2延長現象。然而打藥以後的T1自旋影像對於偵測軟腦膜病變仍然很重要。因此建議可將FLATR波序包括在顱內發炎病患的磁振掃描常規檢查之中。 |
英文摘要 | For the purpose of evaluating theefficacy of the fluid-attenuatedinversion recovery (FLAIR) pulsesequence and increasing thesensitivity of detectinginflammatory lesions in children,we compared FLAIR with fast T2-weighted images in 36 patients whohad intracranial inflammatorydiseases in the last 3 years. Ourresults disclosed that FLAIRimages detected significantly morelesions than did fast T2-WI (p <0.01) and contrast-enhanced T1-weighted images. The FLAIR pulsesequence combined with T2-weighting with nulling of the signalfrom cerebrospinal fluid wassuperior to fast spin-echo sequencesin detecting peripheral andperiventricular lesions. Post-contrast-enhanced Tl-weightedimages were more suitable fordetecting leptomeningeal processesthan were FLAIR images. Weconclude that FLAIR images arecomplementary to fast T2-weightedimages and contrast-enhanced TIWimages. We suggest that FLAIRshould be part of routine brain MRimaging protocols, particularly todefine parenchymal lesions adjacent to the ventricles and suici. |
本系統中英文摘要資訊取自各篇刊載內容。