[Castor-users] Error about Attenuation Map

[tmerlin]

Hi Xinjie,

Yes indeed this is the same issue. Interfile header can come in several 
format and CASToR can't open the one you provided. I couldn't open it 
with a text editor either.

If you didn't do that already, one quick work-around could be to create 
an interfile header for your binary file from one compatible header. I 
attached one to this mail, you just have to change the name of data file 
as well as voxel dimensions/size. The /'total number of images/' key 
must correspond to the number of axial slices (as/matrix size [3]/), 211 
in your case.

Hope this helps,
Thibaut

On 29/04/2022 17:56, Xinjie Cao wrote:
> Dear all,
>
> I generated an attenuation map and wanted to apply it to my 
> reconstruction. But when I apply it in /Castor-recon/, the error 
> popped up as follows,
> =======================
> Error: some mandatory keys not initialized. Cannot read the interfile 
> image!
> Error when trying to read path to image data
> Error when trying to read matrix size (image dimensions) : x= 0, y= 0, 
> z= 1
> =======================
>
> I searched the CASToR archive, and found the following thread,
> https://lists.castor-project.org/pipermail/castor-users/Week-of-Mon-20210426/000529.html.
>
> However, it looks like the issue hasn't been solved yet. I generated 
> the original */.nii/* file in Matlab and converted it to analyze 
> format using XMedcon. I have attached the header file and image file 
> to this email, any response will be highly appreciated!
>
> Best,
> Xinjie
> IQTest.hdr 
> <https://drive.google.com/file/d/1l0QZXPGKw7HtGrHyr30XeTtfRF9kXAEc/view?usp=drive_web>
> IQTest.img 
> <https://drive.google.com/file/d/1L2Q01W3WZWn8SZG1KWoH3vud00GHJUvq/view?usp=drive_web>
>
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-- 
Thibaut MERLIN -- PhD

Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Institut Brestois de recherche en Bio-Santé (IBRBS)
12 Avenue Foch, 29200 Brest, FRANCE
Tel: 06.75.12.24.90

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