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  3. .博碩士學位論文
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  5. 主觀記憶障礙與大腦皮質厚度關聯
 
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主觀記憶障礙與大腦皮質厚度關聯

Other Title
An Association Study of Subjective Memory Impairment and Cerebral Cortical Thickness
Type
thesis
Date Issued
2011-07-01
Author(s)
李知諭
Advisor
徐建業
Subjects
系所名稱:醫學資訊研究所
Description
學位別:碩士
語文別:中文
指導教授:徐建業
共同指導教授:
口試委員:胡朝榮;傅中玲
中文關鍵字:輕度認知功能障礙;主觀記憶障礙;極早期失智症量表;大腦皮質厚度
Abstract
隨著醫療科技的進步,大幅提升了人類的平均壽命,臺灣於1993年已符合聯合國所定義65歲以上老年人口超過7%的高齡化國家。近年來人口快速老化,根據內政部截至2010年統計,台灣地區65歲以上的人口數已高達248萬人,佔全台灣人口總數的10.7% (內政部統計處 重要參考指標)。高齡化社會需要面臨許多慢性疾病的議題,失智症就是其中一項需要重視的高齡化疾病。
輕度認知功能障礙(mild cognitive impairment, MCI)的患者,有10%-15%會發展成為失智症,被視為是早期失智症的高危險群。故本研究以尚未罹患輕度認知功能障礙而出現主觀性記憶障礙(Subjective Memory Impairment, SMI )的患者與健康族群為研究對象,研究對象均施測「極早期失智症量表」(Ascertain Dementia 8, AD-8),並以量表得分作為分組工具,將其區分為主觀記憶障礙與健康兩群體。利用Freesurfer軟體將頭部核磁共振影像(MRI)進行影像處理,針對在腦部負責思考、記憶與學習之大腦皮質進行厚度上計算、分析與比較。在沒有作年齡校正的結果下發現於雙側下顳葉、雙側上頂葉、右側島回(insula)主觀記憶障礙組較健康組有皮質減少。排除掉受年齡影響的皮質區域後於發現在主觀記憶障礙組之皮質厚度較健康組於雙側下顳葉、雙側上頂葉、雙側上顳葉、左側中央溝旁、左側外枕葉、左側額葉中下方、左側上額葉、右側島回有減少的現象。從結果除了得知主觀記憶障礙與局部大腦皮質厚度的關聯外,年齡也是影響結果的一項重要的因素。
URI
https://203.71.86.71/handle/123456789/13597

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