PANCREATIC CYSTS by harikumaru

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									    CLASSIFICATION OF
    PANCREATIC CYSTS



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    Overview
       Introduction
       Signs and symptoms
       Diagnosis
       Pancreatic cysts
       Edge detection
       Thresholding
       Conclusion
       References

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                 OBJECTIVE

    Classification of Pancreatic cysts using
    Image Processing techniques.




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                    INTRODUCTION
       What is a cyst?
        A cyst is a closed sac having a distinct membrane and
        division on the nearby tissue. They may contain air,
        fluids, or semi-solid material.

       Pancreas is a large gland that produces digestive
        enzymes and hormones.
       Pancreas can become home to many types of cystic
        growths, some cancerous and some benign.
       Appropriate treatment differs depending on the type of
        cyst and whether it causes symptoms.

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    Signs and Symptoms
     Persistent abdominal pain
     A mass in the upper abdomen

     Nausea and vomiting

     Fainting




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    Diagnosis
     Computer tomography
     Ultrasound scanning

     Magnetic resonance imaging




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    Pancreatic cysts
    Classification
     Serous cyst

     Mucinous cyst

     Pseudocyst

     Intraductal papilliary mucinous neoplasms




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             IMAGE PROCESSING
                TECHNIQUES
       Edge detection

       Thresholding

       Segmentation



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          EDGE DETECTION
SEROUS CYST-1


           A1
                           edge1




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 Contd…
 SEROUS CYST-2




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                   Contd..
 MUCINOUS CYST-1




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 Contd…
MUCINOUS CYST-2




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            THRESHOLDING
SEROUS CYST-1




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                   Contd…

 MUCINOUS CYST-1




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 Contd…
MUCINOUS CYST-2




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                   CONCLUSION

     Image processing techniques such as edge
      detection and thresholding are used to classify
      the images of Pancreatic cysts


     Thresholding was found to be more effective
      than edge detection in classification


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 References
 [1] Cystic Neoplasms of pancreas –william R. Brugge, MD
     Gregory Y. Lauers-N Engl J Med 2004, 351:1218-122

 [2] Digital Image Processing-Rafael C. Gonzalez

 [3] Pancreatic cyst-MayoClinic.com

 [4] Pancreas, Serous Cystadenoma-www.emedicine.com,
     July 17,2007

 [5] MATLAB 7.0 Image Processing Toolbox



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             SEROUS CYST
    Can be located in head, tail or body of
     pancreas.
    Usually composed of small thin walled
     cysts.
    They have clear cytoplasm.
     Plain CT shows honeycomb pattern of
     microlacunae with thin septae separating
     different segments.
                                Back
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           MUCINOUS CYST
  Usually located in body or tail of pancreas.
  Filled with tenacious fluid.

  Cysts are thick walled .

  CT usually demonstrate well demarcated
   thick walled cystic mass.


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