# How can I display the parametric map from multivolume analysis as a colormap?

**URL:** <https://discourse.slicer.org/t/how-can-i-display-the-parametric-map-from-multivolume-analysis-as-a-colormap/3589>\
**Category:** Development\
**Tags:** visualization\
**Created:** [July 27, 2018, 12:36am UTC](https://discourse.slicer.org/t/how-can-i-display-the-parametric-map-from-multivolume-analysis-as-a-colormap/3589 "2018-07-27T00:36:45Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![tigerhu7](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tigerhu7/32/67201_2.png) [@tigerhu7](https://discourse.slicer.org/u/tigerhu7)\
**Post date:** [August 13, 2018, 2:01am UTC](https://discourse.slicer.org/t/how-can-i-display-the-parametric-map-from-multivolume-analysis-as-a-colormap/3589/8 "2018-08-13T02:01:08Z")

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Dear Dr Fedorov,  
It worked, thank you!

 ![ppp](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/6/b6a12253010e63914a1f84637f32d940a54fdbfd.png)

May I ask you some additional questions?  
(1) on the volume module, I set the output ktrans image display-\>lookup table-\>ColdToHotRainbow, and illustrate image of a certain frame and Ktrans image together, the blue dim background (as is on the pic) is bit annoying. Is there a way to clear blue background?  
(2) for the ktrans map, I would like to get the exact value of each pixel (voxel), is there a way to extract the data?  
I read your previous conversation with [kirezgik](https://discourse.slicer.org/u/kirezgik), are those values Ktrans map, ve map values? If so, how could I extract them?

> [@How to analyze DCE-MRI data](https://discourse.slicer.org/t/how-to-analyze-dce-mri-data/622/3):
>
> Thank you! I installed the extension and analyzed the data. This is the chart I got: And it autogenerates a DoubleArray file with an extension .mcsv and it includes this result: nolabels 0,5813.11,0 6.94764e+006,4719.33,0 1.38953e+007,4900.67,0 2.08429e+007,5255.11,0 2.77906e+007,5131.78,0 3.47382e+007,5241.11,0 4.16859e+007,5384.22,0 4.86335e+007,4986.33,0 5.55811e+007,5158.11,0 6.25288e+007,5173.11,0 6.94764e+007,5138.44,0 7.64241e+007,5346.67,0 8.33717e+007,6408.22,0 …

Sorry for my maybe silly questions, I am a newbie in 3DSlicer. I find this community is very nice and kind. And most of all, I am very grateful to all the contributors!!!

-Tiger Hu

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