北京生物醫(yī)學(xué)工程

基于ITK讀寫DICOM醫(yī)學(xué)圖像文件

Reading and writing medical image files with DICOM format based on ITK

作者：楊朝輝

單位：                      北京交通大學(xué)（北京100044）        

關(guān)鍵詞： DICOM文件; ITK; 醫(yī)學(xué)圖像; 像素訪問(wèn)

分類號(hào)：

出版年·卷·期（頁(yè)碼）：2014·33·5（518-523）

摘要：

目的介紹使用ITK讀取DICOM文件文件頭信息、訪問(wèn)像素?cái)?shù)據(jù)以及存儲(chǔ)DICOM文件的使用方法，以促進(jìn)ITK在國(guó)內(nèi)醫(yī)學(xué)圖像處理領(lǐng)域的普及應(yīng)用。方法使用itk::ImageFileReader類和itk::GDCMImageIO類對(duì)DICOM文件的文件頭進(jìn)行解析。介紹了使用圖像迭代器訪問(wèn)圖像像素的方法，熟悉C編程的研究人員快速訪問(wèn)像素?cái)?shù)據(jù)的方法，及使用itk::ImageFileWriter類進(jìn)行圖像寫操作的方法。結(jié)果使用本文的方法能夠獲取DICOM醫(yī)學(xué)圖像文件頭中的醫(yī)療信息，讀取像素?cái)?shù)據(jù)，并以DICOM格式存儲(chǔ)醫(yī)學(xué)圖像信息。結(jié)論即使對(duì)DICOM標(biāo)準(zhǔn)和圖像格式?jīng)]有深入的了解，使用ITK也能方便地讀寫DICOM醫(yī)學(xué)圖像文件。

Objective To promote the use of ITK in the field of medical image processing in China, this paper introduces the methods of reading DICOM file’s header information, accessing pixel data and DICOM file storage.Methods This paper uses class itk::ImageFileReader and itk::GDCMImageIO to obtain header information of medical image, and introduces methods of visiting pixel data by using image iterator and quick C language function, and the method of DICOM file writing with class itk::ImageFileWriter.Results The methods introduced in this paper can obtain medical information from DICOM file header, read pixel data, and store medical image information into DICOM file format.Conclusions By using ITK methods introduced in this paper, we can read and write the DICOM files conveniently without going deep into the DICOM criterion and file format.

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