Converting Mat file to Dicom file

Question

Hany 2017-1-23

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/321634-converting-mat-file-to-dicom-file

评论： Santiago Romaniolli 2018-7-24

Hi , I have a mat file including 320 slices of CT image and I am trying to convert them to dicom file using the codes below:

load Reconimg.mat;
size(img) % e.g. if size dimensions = 125x125x320
for image_num = 1:320
dicomwrite(img(1:512,1:512,image_num));
sprintf('Reconimg%s.dcm',num2str(image_num));
end

but I get the following error

Error using dicomwrite (line 178)
At least two input arguments required.

could u please advise

Thanks

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Answer 1

Jorge Mario Guerra González 2017-1-23

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https://ww2.mathworks.cn/matlabcentral/answers/321634-converting-mat-file-to-dicom-file#answer_251706

编辑：Jorge Mario Guerra González 2017-1-23

在 MATLAB Online 中打开

for image_num = 1:320 
  dicomwrite(img(1:512,1:512,image_num),FILENAME); 
  sprintf('Reconimg%s.dcm',num2str(image_num)); 
end

you forgot to put the filename argument.

use

help dicomwrite

for more information

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Jorge Mario Guerra González 2017-1-24

在 MATLAB Online 中打开

sorry I didn't write it well it's

filename=strcat('reconimg',num2str(image_num),'.dcm'); 
dicomwrite(img(1:512,1:512,image_num),filename);

the whole code should be

for image_num = 1:320 
filename=strcat('reconimg',num2str(image_num),'.dcm'); 
dicomwrite(img(1:512,1:512,image_num),filename); 
sprintf('Reconimg%s.dcm',num2str(image_num)); %you can delete this if you   want
end

Hany 2017-1-25

Thanks , so turned out the mat file should be the int16 in order for the dicomwrite to work , so here is how it works:

for image_num = 1:320 filename=strcat('Reconimg',num2str(image_num),'.dcm'); B=int16(Reconimg(:,:,image_num)); %dicomwrite(Reconimg(1:512,1:512,image_num),filename); dicomwrite(B,filename); sprintf('Reconimg%s.dcm',num2str(image_num)); %you can delete this if you want end

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Answer 2

Hany 2017-1-25

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/321634-converting-mat-file-to-dicom-file#answer_252023

Thanks , so turned out the mat file should be the int16 in order for the dicomwrite to work , so here is how it works:

for image_num = 1:320 filename=strcat('Reconimg',num2str(image_num),'.dcm'); B=int16(Reconimg(:,:,image_num)); %dicomwrite(Reconimg(1:512,1:512,image_num),filename); dicomwrite(B,filename); sprintf('Reconimg%s.dcm',num2str(image_num)); %you can delete this if you want end

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Santiago Romaniolli 2018-7-24

Hi Hany, where do you define the variable Reconimg? Because I am having trouble with these sentence: B=int16(Reconimg(:,:,image_num)); Undefined function or variable 'Reconimg'.

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