Difference between revisions of "Projects:RegistrationLibrary:RegLib C13"

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[[Projects:RegistrationDocumentation:UseCaseInventory|Back to Registration Use-case Inventory]] <br>
 
[[Projects:RegistrationDocumentation:UseCaseInventory|Back to Registration Use-case Inventory]] <br>
  
==Slicer Registration Use Case Exampe #13: Liver Tumor Cryoablation #2 ==
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[[Projects:ARRASuplements|Back to ARRA main page]] <br>
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[[Projects:RegistrationDocumentation|Back to Registration main page]] <br>
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[[Projects:RegistrationDocumentation:UseCaseInventory|Back to Registration Use-case Inventory]] <br>
  
{| style="color:#bbbbbb; background-color:#333333;" cellpadding="10" cellspacing="0" border="0"
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==<small>v3.6.3</small> [[Image:Slicer3-6Announcement-v1.png‎|150px]] Slicer Registration Library Case #13:  Liver Tumor Cryoablation 2 ==
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=== Input ===
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{| style="color:#bbbbbb; " cellpadding="10" cellspacing="0" border="0"
 
|[[Image:RegLib_C13_LiverTumor2_CTpost.png|200px|lleft|this is the fixed reference image. All images are aligned into this space]]  
 
|[[Image:RegLib_C13_LiverTumor2_CTpost.png|200px|lleft|this is the fixed reference image. All images are aligned into this space]]  
|[[Image:Arrow_left_gray.jpg|100px|lleft]]  
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|[[Image:RegArrow_NonRigid.png|100px|lleft]]  
 
|[[Image:RegLib_C13_LiverTumor2_CTbegin.png|200px|lleft|this is the moving image. The transform is calculated by matching this to the reference image]]
 
|[[Image:RegLib_C13_LiverTumor2_CTbegin.png|200px|lleft|this is the moving image. The transform is calculated by matching this to the reference image]]
 
|[[Image:RegLib_C13_LiverTumor2_MRIpre_T1.png|200px|lleft|this is the moving image. The transform is calculated by matching this to the reference image]]
 
|[[Image:RegLib_C13_LiverTumor2_MRIpre_T1.png|200px|lleft|this is the moving image. The transform is calculated by matching this to the reference image]]
 
|[[Image:RegLib_C13_LiverTumor2_MRIpre_T2.png|200px|lleft|this is the moving image. The transform is calculated by matching this to the reference image]]
 
|[[Image:RegLib_C13_LiverTumor2_MRIpre_T2.png|200px|lleft|this is the moving image. The transform is calculated by matching this to the reference image]]
|align="left"|LEGEND<br>
 
[[Image:Button_red_fixed.jpg|20px|lleft]]  this indicates the reference image that is fixed and does not move. All other images are aligned into this space and resolution<br>
 
[[Image:Button_green_moving.jpg|20px|lleft]]  this indicates the moving image that determines the registration transform.  <br>
 
 
|-
 
|-
|[[Image:Button_red_fixed.jpg|40px|lleft]]  post-op CT
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|fixed image/target
 
|
 
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|[[Image:Button_green_moving.jpg|40px|lleft]] pre-op CT
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|moving image
|[[Image:Button_green_moving.jpg|40px|lleft]] pre-op T1 MRI
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|moving image
|[[Image:Button_green_moving.jpg|40px|lleft]] pre-op T2 MRI
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|moving image
|-
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|}
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|0.57 x 0.57 x 5 mm<br> 512 x 512 x 37<br>RAS
 
|0.57 x 0.57 x 5 mm<br> 512 x 512 x 37<br>RAS
 
|
 
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===Input Data===
 
===Input Data===
*[[Image:Button_red_fixed_white.jpg|20px]]reference/fixed : T1 SPGR , 0.9375 x 0.9375 x 1.4 mm voxel size, axial, RAS orientation.
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*reference/fixed : 0.57 x 0.57 x 5 , 512 x 512 x 37 voxels
*[[Image:Button_green_moving_white.jpg|20px]] moving: T1 SPGR , 0.9375 x 0.9375 x 1.2 mm voxel size, sagittal, RAS orientation.
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*moving: 0.57 x 0.57 x 5 mm, 512 x 512 x 33 voxels
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*moving: 1.56 x 1.56 x 2.5 mm, 256 x 256 x 88
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*moving: 1.56 x 1.56 x 6  mm, 256 x 256 x 36
  
 
=== Methods ===
 
=== Methods ===
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*contrast enhancement and pathology and treatment changes cause additional differences in image content
 
*contrast enhancement and pathology and treatment changes cause additional differences in image content
 
*we have strongly anisotropic voxel sizes with much less through-plane resolution
 
*we have strongly anisotropic voxel sizes with much less through-plane resolution
 
=== Discussion: Key Strategies ===
 
*
 

Revision as of 20:47, 18 August 2011

Home < Projects:RegistrationLibrary:RegLib C13

Back to ARRA main page
Back to Registration main page
Back to Registration Use-case Inventory

Back to ARRA main page
Back to Registration main page
Back to Registration Use-case Inventory

v3.6.3 Slicer3-6Announcement-v1.png Slicer Registration Library Case #13: Liver Tumor Cryoablation 2

Input

this is the fixed reference image. All images are aligned into this space lleft this is the moving image. The transform is calculated by matching this to the reference image this is the moving image. The transform is calculated by matching this to the reference image this is the moving image. The transform is calculated by matching this to the reference image
fixed image/target moving image moving image moving image


|0.57 x 0.57 x 5 mm
512 x 512 x 37
RAS | |0.57 x 0.57 x 5 mm
512 x 512 x 33
RAS |1.56 x 1.56 x 2.5 mm
256 x 256 x 88
RAS |1.56 x 1.56 x 6 mm
256 x 256 x 36
RAS | |}

Objective / Background

We seek to align the pre-operative CT&MRI with the post-operative CT.

Keywords

MRI, CT, IGT, intra-operative, liver, cryoablation, change detection, non-rigid registration

Input Data

  • reference/fixed : 0.57 x 0.57 x 5 , 512 x 512 x 37 voxels
  • moving: 0.57 x 0.57 x 5 mm, 512 x 512 x 33 voxels
  • moving: 1.56 x 1.56 x 2.5 mm, 256 x 256 x 88
  • moving: 1.56 x 1.56 x 6 mm, 256 x 256 x 36

Methods

Registration Results

This case is currently unsolved with standard Slicer 3.6 technology. Special/custom modifications to registration modules (SlicerIGT Registration) are under way and will be incorporated into future releases.

Download


Discussion: Registration Challenges

  • large differences in FOV
  • strong differences in image contrast between MRI & CT
  • contrast enhancement and pathology and treatment changes cause additional differences in image content
  • we have strongly anisotropic voxel sizes with much less through-plane resolution