Method for reducing metal artifact of computed tomographic image generating the computer tomographic image of the subject according to the fifth image data matrix
Disclosed is a method for reducing a metal artifact of a computer tomographic image, comprising the following steps: by means of a processing unit, converting a first set of raw image data and a second set of raw image data generated from a dual-source dual-energy computed tomography scanner in one scanning of a metal-containing subject into a first image data matrix and a second image data matrix after removing metal artifact image by using an image subtraction technique and an image fusion technique according to the first image data matrix and the second image data matrix, obtaining a fifth image data matrix for the computed tomographic image of the subject, wherein the HU value of each matrix element in the fifth image data matrix is within a corresponding range finally, generating the computer tomographic image of the subject according to the fifth image data matrix.一種用於降低電腦斷層影像之金屬假影的方法,藉由一處理單元,將來自一雙源雙能量電腦斷層掃描器在一次掃描一含有金屬物的受檢物中所產生之第一組原始影像資料及第二組原始影像資料轉換成一第一影像資料矩陣及一第二影像資料矩陣,並根據該第一影像資料矩陣及該第二影像資料矩陣,利用減像技術及影像融合技術去除金屬假影資料後,獲得一相關於該受檢物之一電腦斷層掃描影像的第五影像資料矩陣,該第五影像資料矩陣中之每一矩陣元素的HU值係在一對應範圍中,最後,根據該第五影像資料矩陣,產生該受檢物之一電腦斷層掃描影像。101~105‧‧‧步驟
