Publications-Theses
Article View/Open
Publication Export
-
Google ScholarTM
NCCU Library
Citation Infomation
Related Publications in TAIR
題名 以MEGA-PRESS頻譜編輯技術偵測大腦乳酸 及探討平均頻譜次數與擬合參數之影響
The detection of lactate in human brain using MEGA-PRESS spectral editing technique and the affect between times of average spectrum and fitting parameters作者 粘政緯
Nien, Cheng Wei貢獻者 蔡尚岳
Tsai, Shang Yueh
粘政緯
Nien, Cheng Wei關鍵詞 磁共振頻譜
耦合
MEGA-PRESS日期 2017 上傳時間 5-Apr-2017 15:37:10 (UTC+8) 摘要 乳酸(Lactate)是一種人體內常見的代謝物,也是無氧代謝後的最終產物。人體在運動過後血液中的乳酸濃度會上升,但在一般情況下大腦中的乳酸含量非常低,正常人腦乳酸濃度約低於0.5毫莫耳(mM),由於腦乳酸的低濃度,以及在磁共振頻譜中的乳酸訊號與大分子(macromolecular)部分訊號重疊,導致在正常大腦中不易得到乳酸的頻譜訊號。近年來,有文獻指出在3T的磁場下利用MEGA-PRESS技術可以量測到乳酸在大腦經由低氧與高氧交替過程中的改變,而Mescher-Garwood(MAGA) point-resolved spectroscopy sequence(PRESS)頻譜編輯技術是由原本的PRESS脈衝序列再增加兩個選擇性的脈衝,透過頻譜相減消除不具有J-耦合特性的代謝物,來針對具有J-耦合特性的代謝物訊號做測量。本研究的目的為在3T的磁場下,利用MEGA-PRESS技術量到乳酸的頻譜訊號之外,再藉由不同的擬合(fitting)方式以及處理頻譜平均次數來得到不同條件下乳酸頻譜的標準差及變異係數值,以衡量利用在視覺刺激下是否能得到大腦視覺區中乳酸的改變差異,並提供一份乳酸對擬合參數的改變及平均次數多寡的參考依據。 參考文獻 [1] M.Mescher, H.Merkle, J.Kirsch,M.Garwood, and R.Gruetter, "Simultaneous in vivo spectral editing and water suppression,"NMR in Biomedicine,vol.11, pp.266-272,1998.[2] Richard A.E.Edden, Ashley D.Harris, and Kevin Murphy,"Edited MRS is sensitive to changes in lactate concentration during inspiratory hypoxia,"(2010) [3] Yan Lin, Mary C Stephenson, and Lijing Xin, "Investigating the metabolic changes due to visual stimulation using functional proton magnetic resonance spectroscopy at 7T,"(2012)[4] Ashley D.Harris, Victoria H.Roberton, and Danielle L.Huckle, "Temporal dynamics of Lactate concentration in the human brain during acute inspiratory hypoxia,"(2013)[5] Jaime M.Ross, Johanna Öberg, and Stefan Brené, "High brain lactate is a hallmark of aging and caused by a shift in the lactate dehydrogenase A/B ratio,"(2010)[6] D.Lau, N.Klein, and B.Cunha, "Brain abscess mimisking brain tumor," Heart & Lung:the journal of critical care,vol.18,pp.634-637,1989[7] V.Govindaraju,K.Young,and A.A.Maudsley,"Proton NMR chemical shifts and constant for brain metabolites,"NMR in Biomedicine,vol.13,pp.129-153,2000.[8] Sean Hansen-Romu, "Simulation of the Ultra-Cold Neutron Spin Analyzer Foil." ,p14,(2015)[9] 陳志宏、張允中和謝昭賢等編著。第15 章核磁共振與磁振造影 "Nuclear Magnetic Resonanceand Magnetic Resonance Imaging", p10.[10] Ray H. Hashemi, William G. Bradley, Christopher J. Lisanti. "MRI the basics." Lippincott Williams & Wilkins (2004).[11] Robin A. de Graaf. "In Vivo NMR Spectroscopy" 2nd Edition , John Wiley & Sons, Ltd (2007) 描述 碩士
國立政治大學
應用物理研究所
103755014資料來源 http://thesis.lib.nccu.edu.tw/record/#G0103755014 資料類型 thesis dc.contributor.advisor 蔡尚岳 zh_TW dc.contributor.advisor Tsai, Shang Yueh en_US dc.contributor.author (Authors) 粘政緯 zh_TW dc.contributor.author (Authors) Nien, Cheng Wei en_US dc.creator (作者) 粘政緯 zh_TW dc.creator (作者) Nien, Cheng Wei en_US dc.date (日期) 2017 en_US dc.date.accessioned 5-Apr-2017 15:37:10 (UTC+8) - dc.date.available 5-Apr-2017 15:37:10 (UTC+8) - dc.date.issued (上傳時間) 5-Apr-2017 15:37:10 (UTC+8) - dc.identifier (Other Identifiers) G0103755014 en_US dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/108121 - dc.description (描述) 碩士 zh_TW dc.description (描述) 國立政治大學 zh_TW dc.description (描述) 應用物理研究所 zh_TW dc.description (描述) 103755014 zh_TW dc.description.abstract (摘要) 乳酸(Lactate)是一種人體內常見的代謝物,也是無氧代謝後的最終產物。人體在運動過後血液中的乳酸濃度會上升,但在一般情況下大腦中的乳酸含量非常低,正常人腦乳酸濃度約低於0.5毫莫耳(mM),由於腦乳酸的低濃度,以及在磁共振頻譜中的乳酸訊號與大分子(macromolecular)部分訊號重疊,導致在正常大腦中不易得到乳酸的頻譜訊號。近年來,有文獻指出在3T的磁場下利用MEGA-PRESS技術可以量測到乳酸在大腦經由低氧與高氧交替過程中的改變,而Mescher-Garwood(MAGA) point-resolved spectroscopy sequence(PRESS)頻譜編輯技術是由原本的PRESS脈衝序列再增加兩個選擇性的脈衝,透過頻譜相減消除不具有J-耦合特性的代謝物,來針對具有J-耦合特性的代謝物訊號做測量。本研究的目的為在3T的磁場下,利用MEGA-PRESS技術量到乳酸的頻譜訊號之外,再藉由不同的擬合(fitting)方式以及處理頻譜平均次數來得到不同條件下乳酸頻譜的標準差及變異係數值,以衡量利用在視覺刺激下是否能得到大腦視覺區中乳酸的改變差異,並提供一份乳酸對擬合參數的改變及平均次數多寡的參考依據。 zh_TW dc.description.tableofcontents 中文摘要 Ⅱ目錄 Ⅲ圖目錄 Ⅳ表目錄 Ⅶ第一章 簡介 11-1背景介紹 11-2文獻回顧 11-3研究動機 41-4組織架構 4第二章 原理 72-1磁共振原理 72-2化學位移 92-3 J耦合 112-4 MEGA-PRESS頻譜編輯技術 13第三章 實驗步驟與方法 173-1受試者與實驗方法 173-2實驗過程與參數 173-3頻譜處理方式 183-4擬合參數使用 213-5數據分析 22第四章 結果 244-1不同時間分辨率下乳酸加大分子頻譜 244.2乳酸加大分子曲線擬合誤差 264.3乳酸加大分子量化數值與變異係數 29第五章 討論與結論 355-1討論 355-2結論 39參考資料 40 zh_TW dc.format.extent 1874345 bytes - dc.format.mimetype application/pdf - dc.source.uri (資料來源) http://thesis.lib.nccu.edu.tw/record/#G0103755014 en_US dc.subject (關鍵詞) 磁共振頻譜 zh_TW dc.subject (關鍵詞) 耦合 zh_TW dc.subject (關鍵詞) MEGA-PRESS en_US dc.title (題名) 以MEGA-PRESS頻譜編輯技術偵測大腦乳酸 及探討平均頻譜次數與擬合參數之影響 zh_TW dc.title (題名) The detection of lactate in human brain using MEGA-PRESS spectral editing technique and the affect between times of average spectrum and fitting parameters en_US dc.type (資料類型) thesis en_US dc.relation.reference (參考文獻) [1] M.Mescher, H.Merkle, J.Kirsch,M.Garwood, and R.Gruetter, "Simultaneous in vivo spectral editing and water suppression,"NMR in Biomedicine,vol.11, pp.266-272,1998.[2] Richard A.E.Edden, Ashley D.Harris, and Kevin Murphy,"Edited MRS is sensitive to changes in lactate concentration during inspiratory hypoxia,"(2010) [3] Yan Lin, Mary C Stephenson, and Lijing Xin, "Investigating the metabolic changes due to visual stimulation using functional proton magnetic resonance spectroscopy at 7T,"(2012)[4] Ashley D.Harris, Victoria H.Roberton, and Danielle L.Huckle, "Temporal dynamics of Lactate concentration in the human brain during acute inspiratory hypoxia,"(2013)[5] Jaime M.Ross, Johanna Öberg, and Stefan Brené, "High brain lactate is a hallmark of aging and caused by a shift in the lactate dehydrogenase A/B ratio,"(2010)[6] D.Lau, N.Klein, and B.Cunha, "Brain abscess mimisking brain tumor," Heart & Lung:the journal of critical care,vol.18,pp.634-637,1989[7] V.Govindaraju,K.Young,and A.A.Maudsley,"Proton NMR chemical shifts and constant for brain metabolites,"NMR in Biomedicine,vol.13,pp.129-153,2000.[8] Sean Hansen-Romu, "Simulation of the Ultra-Cold Neutron Spin Analyzer Foil." ,p14,(2015)[9] 陳志宏、張允中和謝昭賢等編著。第15 章核磁共振與磁振造影 "Nuclear Magnetic Resonanceand Magnetic Resonance Imaging", p10.[10] Ray H. Hashemi, William G. Bradley, Christopher J. Lisanti. "MRI the basics." Lippincott Williams & Wilkins (2004).[11] Robin A. de Graaf. "In Vivo NMR Spectroscopy" 2nd Edition , John Wiley & Sons, Ltd (2007) zh_TW