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  5. 自動化電腦斷層影像品質分析
 
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自動化電腦斷層影像品質分析

Other Title
Automatic Computed Tomography Image Quality Assurance Analysis
Type
thesis
Date Issued
2010-07-01
Author(s)
李育青
Advisor
蔣以仁
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:蔣以仁
共同指導教授:
口試委員:李元綺;陳潤秋
中文關鍵字:斷層掃描;影像品質;影像處理;CT值;MTF
Abstract
電腦斷層掃描儀廣泛用於非侵入性檢查中。為了確保斷層掃描的影像品質,必需要依賴特殊設備所產生的檢測影像,然後透過影像量測及目視方式進行判斷。
有幾項關鍵性參數攸關影像品質的好與壞;包括影像明暗對比(Contrast scale)、高對比空間解析(High Contrast Resolution)、低對比空間解析(Low contrast detectability)、CT值及雜訊的均勻度(Noise and Uniformity)、雷射定位線的準確度(Laser Accuracy)等。
本研究希望將電腦斷層的影像品質,透過程式進行分析、研判,包括影像明暗對比、高對比空間解析、低對比空間解析、CT值及雜訊的均勻度、雷射定位線的準確度以及MTF (Modulation Transfer Function)這幾個量測結果,並且直接顯示在螢幕上,讓工作人員不必花時間就可以了解目前影像品質的狀況。
URI
https://203.71.86.71/handle/123456789/13298

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