Difference between revisions of "Projects:AFibLongitudinalAnalysis"

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(Created page with 'Back to Boston University Algorithms __NOTOC__ = Description = To segment the scaring tissue from DE-MRI images, we proposed an effective method that utilizes …')
 
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= Description =  
 
= Description =  
To segment the scaring tissue from DE-MRI images, we proposed an effective method that utilizes the geometric and intensity information of the left atrial wall. The key
+
The shape evolution of the left atrium in the atrial fibrillation patiens is studied longitudinally to reveal the difference between recover group and the AFib recurrence group.
observation is that the scaring tissue lies around a thin layer outside the LA chamber and has high intensity values. In order to identify the scar in the
 
image, we first extract the wall region of the LA. Then, the extraction of the scar is restricted in the wall region.
 
 
 
*[[File:ScarIntensities.png|800px]]
 
Scars in a DE-MRI image. The LA is highlighted with red contour. From left to right: scars in axial, sagittal, and coronal views, respectively.
 
  
 
= Results =
 
= Results =
*[[File:LAWall.png|800px]]
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*[[File:LongitudinalAFib.png|800px]]
Extracted LA wall. From left to right: LA wall in axial, sagittal, and coronal views, respectively.
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Shape difference. From left to right: mean shapes with p-value map at time 0, 0.1, ..., 1.0.
 
 
*[[File:LAScar.png|800px]]
 
From left to right: scars in axial, sagittal, and coronal views, respectively.
 
  
 
= Key Investigators =
 
= Key Investigators =
*Georgia Tech: Liangjia Zhu and Anthony Yezzi
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*Georgia Tech: Liangjia Zhu
 
*BWH: Yi Gao and Sylvain Bouix
 
*BWH: Yi Gao and Sylvain Bouix
 
*Boston University: Allen Tannenbaum
 
*Boston University: Allen Tannenbaum
  
 
= Publications =
 
= Publications =
Y. Gao, L. Zhu, A. Yezzi, S. Bouix , A. Tannenbaum. Scar Segmentation in DE-MRI, IEEE International Symposium on Biomedical Imaging (ISBI) , 2012.
 

Revision as of 21:02, 20 November 2012

Home < Projects:AFibLongitudinalAnalysis

Back to Boston University Algorithms


Description

The shape evolution of the left atrium in the atrial fibrillation patiens is studied longitudinally to reveal the difference between recover group and the AFib recurrence group.

Results

  • LongitudinalAFib.png

Shape difference. From left to right: mean shapes with p-value map at time 0, 0.1, ..., 1.0.

Key Investigators

  • Georgia Tech: Liangjia Zhu
  • BWH: Yi Gao and Sylvain Bouix
  • Boston University: Allen Tannenbaum

Publications