help > RE: Window Width and Window Center Value of DICOM images not considered while converting dcm to nii
Sep 11, 2019  07:09 AM | Chris Rorden
RE: Window Width and Window Center Value of DICOM images not considered while converting dcm to nii
Your image has far more dynamic range than the screen. Set the image intensity minimum and maximum to highlight the tissues you are interested in. CT scans are saved as Hounsfield units, with the intensity of air very dark (-1000), soft-tissue and water in the range 0-50 and bone very bright (+1000). On option is to just set the "min" and "max" values for the window values you desire. Alternatively, right-drag your mouse over the area of the image you are interested in and it will adjust the contrast to what you are interested in. 

If you are using [MRIcroGL](https://www.nitrc.org/plugins/mwiki/inde...) you can select one of the "CT" color schemes. The image below shows the CT_Abdo scan that comes with MRIcroGL (File/OpenStandard/CTAbdo) with both the initial intensity range and with the "CT_Kidneys" color scheme applied. Choose Scripting/Templates/ct_abdomen for a graphical demonstration.
Attachment: ct_contrast.jpg

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TitleAuthorDate
Utsav Shrestha Sep 10, 2019
Utsav Shrestha Sep 11, 2019
RE: Window Width and Window Center Value of DICOM images not considered while converting dcm to nii
Chris Rorden Sep 11, 2019