CT projection data for assignmentsThe data was obtained was obtained from a female patient using a Toshiba scanner at Rigshospitalet. More information can be found in the DICOM files described below. The data for the measurements are given below:
The data can be obtained from the ftp-server. Several files are found. The properties are listed in the following table (click on the file name to get the data):
The files should be downloaded in binary format. The files can be directly read and manipulate with Matlab. The variable ct_data contains the projection data with 200 angular projections and 512 values for each projection. The pixel values are equal to Hounsfield units and a pixel value of zero corresponds to -1000 in Hounsfield units. The projected data are also off-set 1000 Hounsfield units. More information about the images can be found in the DICOM files located in The individual files can be read by the DICOM reader functions in Matlab. An example is given in the script: https://courses.healthtech.dtu.dk/22485/files/ct_data/dicom_data/display_dicom_images.m, which load all images and shows a video with them. The whole file structure can be downloaded using the zip-file: https://courses.healthtech.dtu.dk/22485/files/ct_data/dicom_data/dicom_data_zip.zip. Note that it is big - 193 MBytes. |