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Steps for the Autologous Ex vivo Perfused Porcine Liver-kidney Experiment
Published on: December 18, 2013
Texture Feature Differences between Fresh and Frozen-thawed Ex-vivo Porcine Liver Tissue in B-mode Ultrasonic Imaging
1Industrial Design Engineering, Delft University of Technology, Delft, Netherlands.
Background:
Ultrasound guidance of cryotherapy could be improved if changes of tissue characterization parameters during freezing could be used to monitor freezing profiles and estimate frostbite distributions.
Objective:
To investigate if B-mode ultrasonic imaging can provide sufficient information to define the damaged zone during cryotherapy by quantifying the differences of texture features between fresh and frozen-thawed porcine liver tissue.
Materials And Methods:
The B-mode ultrasonic images were obtained from ten porcine liver tissue samples before and after frozen-thawing treatment, then 20 texture parameters of the grey level histogram (GLH) and the grey level co-occurrence matrix (GLCM) from each image were extracted and analyzed statistically.
Results:
It was found that the differences in two texture parameters between the fresh and frozen-thawed tissue are significant enough for diagnostic purpose (variance: 317.0%, contrast: 144.4%).
Conclusion:
Texture feature analysis of B-mode ultrasonic images can effectively differentiate the fresh and frozen-thawed porcine liver tissues, which offers a prospect for the future practice of evaluating the effectiveness of cryotherapy using Ultrasound.
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