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題名 | 不同影像處理演算法於梗塞性中風磁振影像的分析技術=Analysis Techniques of Different Image Processing Algorithms in Ischemic Strokes Magnetic Resonance Imaging |
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作者 | 劉冠忻; 洪嘉亨; 盧建利; 林清熹; 曾明宗; 呂坤木; 陳良光; | 書刊名 | 臺灣應用輻射與同位素雜誌 |
卷期 | 12:2 2016.06[民105.06] |
頁次 | 頁1281-1287 |
分類號 | 414.93 |
關鍵詞 | 影像分割; 邊緣檢測; 梗塞性中風; 損傷區域; Image segmentation; Edge detection; Ischemic strokes; Clots; Damaged area; |
語文 | 中文(Chinese) |
中文摘要 | 腦中風是國內十大死亡主因之一,且有逐年增加的趨勢。本研究利用各種不同的影像分析技術,針對磁振照影術獲取的頭部腦組織影像進行處理,以半自動化技術精確的描繪出腦組織損傷區域。希望能夠及早提供資訊,便於進行臨床診斷與治療。研究過程使用不同的演算法則(Sobel 演算法、Marr-Hildreth 演算法、Canny 演算法) 進行腦組織損傷區域描繪,其中邊界完整性最好的演算法則是Marr-Hildreth 演算法;可以繪製出的單一像素邊界和無缺口之封閉區域。其中以Canny 演算法結果與真實腦組織損傷區域之吻合度最高,且能精確的描繪出腦組織損傷區域和鄰近正常腦組織或是顱骨的界線,是研究時方便又可靠的檢測模式。 |
英文摘要 | Stroke one of the ten major causes of death in Taiwan is in a rising trend. We are using a variety of different image analysis techniques in this study to process images of brain tissue from MRI that depicts brain damage area precisely by semi-automation technology. Hope it can provide information as soon as possible, to facilitate the clinical diagnosis and treatment. The study is performed to depict damaged region of the brain tissue by using different algorithms (including Sobel algorithm, Marr-Hildreth algorithm and Canny algorithm). Marr-Hildreth algorithm is the best one of the three for integrated depicting outer edge of the object. It also can draw a single pixel boundary and the closure of an area with no gap. The result from Canny algorithm is the closest one of three algorithms to the real brain damage area and it can depict brain damage area precisely from adjacent normal brain tissue or from skull boundaries. It is also a convenient and reliable detection mode when we perform a medical study. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。