Bryant Chanowitz | 26 Jun 2012 21:27
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convert MRI to CT by changing dicom header

Hi,

We would like to import MRI images for radiation treatment planning but the planning system only takes CT images. Is there a way to fool the system by changing MRI dicom headers into CT headers? Any suggestions would be highly appreciated.

Bryant
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Scott Johnson | 27 Jun 2012 00:56

Re: convert MRI to CT by changing dicom header

I’m sure that you can take the image pixels from an MR image and pack it into a CT image, but it would be an extremely bad idea.

 

The planning system is going to believe that those pixels represent HU values and they don’t.  The computed dose will have no bearing on reality.

 

                               -- Scott

 

From: insight-users-bounces <at> itk.org [mailto:insight-users-bounces-RyaoCGfWeh4@public.gmane.org] On Behalf Of Bryant Chanowitz
Sent: Tuesday, June 26, 2012 2:27 PM
To: insight-users-RyaoCGfWeh4@public.gmane.org
Subject: [Insight-users] convert MRI to CT by changing dicom header

 

Hi,

 

We would like to import MRI images for radiation treatment planning but the planning system only takes CT images. Is there a way to fool the system by changing MRI dicom headers into CT headers? Any suggestions would be highly appreciated.

 

Bryant

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Jothy | 27 Jun 2012 10:59
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Re: convert MRI to CT by changing dicom header

One way to tackle this is to assign HU of water or set in homogeneity correction off. Of course you need to compromise the accuracy!

Sent from my Phone

On 26-Jun-2012, at 11:56 PM, Scott Johnson <Scott.Johnson-0WFb6YI7bt9BDgjK7y7TUQ@public.gmane.org> wrote:

I’m sure that you can take the image pixels from an MR image and pack it into a CT image, but it would be an extremely bad idea.

 

The planning system is going to believe that those pixels represent HU values and they don’t.  The computed dose will have no bearing on reality.

 

                               -- Scott

 

From: insight-users-bounces-RyaoCGfWeh4@public.gmane.org [mailto:insight-users-bounces-RyaoCGfWeh4@public.gmane.org] On Behalf Of Bryant Chanowitz
Sent: Tuesday, June 26, 2012 2:27 PM
To: insight-users-RyaoCGfWeh4@public.gmane.org
Subject: [Insight-users] convert MRI to CT by changing dicom header

 

Hi,

 

We would like to import MRI images for radiation treatment planning but the planning system only takes CT images. Is there a way to fool the system by changing MRI dicom headers into CT headers? Any suggestions would be highly appreciated.

 

Bryant

_____________________________________
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Bryant Chanowitz | 28 Jun 2012 23:30
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Re: convert MRI to CT by changing dicom header

Thank you guys. We would like to use MRI geometry rather than CT's for the treatment purpose, so we try to modify the MRI dicom headers (to make it CT header-alike) instead of mapping the pixels from MR to CT. 

Dose accuracy based on MRI will be an issue, but not a major concern for the time being. Thanks.

From: Jothy <jothybasu-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Scott Johnson <Scott.Johnson-0WFb6YI7bt9BDgjK7y7TUQ@public.gmane.org>
Cc: Bryant Chanowitz <bchanowitz <at> yahoo.com>; "insight-users-RyaoCGfWeh4@public.gmane.org" <insight-users-RyaoCGfWeh4@public.gmane.org>
Sent: Wednesday, June 27, 2012 3:59 AM
Subject: Re: [Insight-users] convert MRI to CT by changing dicom header

One way to tackle this is to assign HU of water or set in homogeneity correction off. Of course you need to compromise the accuracy!

Sent from my Phone

On 26-Jun-2012, at 11:56 PM, Scott Johnson <Scott.Johnson-0WFb6YI7bt9BDgjK7y7TUQ@public.gmane.org> wrote:

I’m sure that you can take the image pixels from an MR image and pack it into a CT image, but it would be an extremely bad idea.
 
The planning system is going to believe that those pixels represent HU values and they don’t.  The computed dose will have no bearing on reality.
 
                               -- Scott
 
From: insight-users-bounces-RyaoCGfWeh4@public.gmane.org [mailto:insight-users-bounces-RyaoCGfWeh4@public.gmane.org] On Behalf Of Bryant Chanowitz
Sent: Tuesday, June 26, 2012 2:27 PM
To: insight-users-RyaoCGfWeh4@public.gmane.org
Subject: [Insight-users] convert MRI to CT by changing dicom header
 
Hi,
 
We would like to import MRI images for radiation treatment planning but the planning system only takes CT images. Is there a way to fool the system by changing MRI dicom headers into CT headers? Any suggestions would be highly appreciated.
 
Bryant
_____________________________________
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Follow this link to subscribe/unsubscribe:
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