# Castor and Simind

**URL:** <https://castor-project.discourse.group/t/castor-and-simind/448>\
**Category:** General Discussions\
**Tags:** spect\
**Created:** [December 9, 2022, 3:40pm UTC](https://castor-project.discourse.group/t/castor-and-simind/448 "2022-12-09T15:40:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![federica](https://avatars.discourse-cdn.com/v4/letter/f/977dab/32.png) [@federica](https://castor-project.discourse.group/u/federica)\
**Post date:** [December 9, 2022, 3:40pm UTC](https://castor-project.discourse.group/t/castor-and-simind/448/1 "2022-12-09T15:40:01Z")

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Hello,  
I am Federica a medical physicist. I am using simind for simulations but I am having problems with image reconstruction. For example, if I do the reconstruction of the Jaszac phantom (file jaszac\_leo\_salida.h00, already in simid directory) with the following short-cut:

smc2castor jaszac\_leo\_salida.h00 outpu3 jaszac\_leo\_salida.a00/en:10/su:10/MB:3/at:15/run

when I open the output (file name outpu3.hdr) with the NucMed  
ImageJ plugin I get a single axial image in black and white, without any significance!

Can anyone help me? Why do I only get one black and white image?

I would have expected the different axial images for the entire volume of the phantom.

Thanks a lot for your help.

Federica

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**Author:** ![Michael\_Ljungberg](https://avatars.discourse-cdn.com/v4/letter/m/a4c791/32.png) [@Michael\_Ljungberg](https://castor-project.discourse.group/u/Michael_Ljungberg)\
**Post date:** [December 9, 2022, 4:17pm UTC](https://castor-project.discourse.group/t/castor-and-simind/448/2 "2022-12-09T16:17:10Z")

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Hi Federica

Can you send me \*a00, \*.h00 and the res file so I can reproduce your reconstruction?

Hälsningar / Best regards

Michael

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**Author:** ![federica](https://avatars.discourse-cdn.com/v4/letter/f/977dab/32.png) [@federica](https://castor-project.discourse.group/u/federica)\
**Post date:** [December 14, 2022, 1:24pm UTC](https://castor-project.discourse.group/t/castor-and-simind/448/6 "2022-12-14T13:24:44Z")

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Thank you very much for your help.

I tried to do other simind simulations but without success.

I send you (using WeTransfer) my new simind simulation results (example, the file **risultato\_13122022\_sy.h00** and **risultato\_13122022\_sy.a00** ).

If you open with the image-j Nuc Med plugin ‘ **risultato\_13122022\_sy.h00** ’ you will see the SPECT images (simind results).

The prompt command to reconstruct with castor was:

smc2castor **risultato\_13122022\_sy.h00** lehr\_i123\_recon **risultato\_13122022\_sy.a00** /it:10/su:10/MB:3/AC/run

I send to you also my castor results: **lehr\_i123\_recon\_it10.hdr**

Thank you very much for your help.

Federica  
Link WeTransfer:

> **[lehr\_i123\_recon\_it10.hdr and 8 more files](https://wetransfer.com/downloads/018ff4452b11f274ca59e6484409f68220221214090110/a17da6)**
>
> 9 files sent via WeTransfer, the simplest way to send your files around the world