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  5. 不同路徑給予碘顯影劑造成電腦斷層掃描下肺部影像差異之研究
 
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不同路徑給予碘顯影劑造成電腦斷層掃描下肺部影像差異之研究

Other Title
Lung Imaging Enhancement of Iodine Contrast Agent Causing by Variant Delivery Route under Computer Tomography
Type
thesis
Date Issued
2016-01-18
Author(s)
林國凱
Advisor
曾靖孋
Subjects
系所名稱:生醫材料暨組織工程研究所
Description
學位別:碩士
語文別:中文
指導教授:曾靖孋
共同指導教授:
口試委員:吳錫岑;楊凱強
中文關鍵字:肺癌;顯影劑;電腦斷層
英文關鍵字:Lung Cancer;Contrast Agent;Computer Tomography
Abstract
癌症一直是國內十大死因之首,其中肺癌又是所有癌症死亡之冠,因為肺癌早期發現率低使得長期存活率都低。因此尋找可以早期診斷肺癌的方式為當務之急。目前電腦斷層掃描為肺癌診斷常用工具,會採用顯影劑加強影像對比,常見的電腦斷層掃描顯影劑為碘顯影劑,以靜脈注射為主,顯影劑需經循環才能於肺部顯影。而呼吸給藥可使藥直接到肺,因此若能以呼吸給藥方式遞送顯影劑到肺部可能對肺部顯影有助益。本實驗探討利用以靜脈注射與肺部噴霧二種不同路徑,將碘顯影劑(Iohexol)以500 mg/ml遞送到小鼠體內,並用微電腦斷層掃描(Micro-CT)觀察不同時間點,顯影劑對肺部影像影響之情形。
實驗結果顯示,以靜脈注射Iohexol的小鼠,在其肺部Micro-CT影像與未使用顯影劑的影像並無顯著差異;但以肺部噴霧路徑給於Iohexol的小鼠,其於肺部影像有變清楚,應是有大量顯影劑所造成。這說明透過肺部噴霧給予顯影劑可直接作用於肺部組織,以呼吸給藥對肺部影像增強的影響可達120分鐘,而靜脈注射只有5分鐘。
由於碘顯影劑有肝腎毒性,血液分析顯示二種遞送方式,並未造成GOT、GPT、BUN、CREA有明顯變化,故不具肝腎毒性。
故本研究証實以呼吸方式遞送碘顯影劑可增加電腦斷層掃描肺部影像對比度,增加肺部影像清析度,未來可應用於肺癌診斷分析。
URI
https://203.71.86.71/handle/123456789/57428

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