Automated CT Based Liver Volume Assessment - Definiens

More documents

Recommendations

Info

Automatic Segmentation Algorithm • Fully automatic segmentation algorithm developed in the Cognition Network Language (CNL) with Definiens Developer XD 1.0 • Automatic pre-processing using rule-based segmentation – Defines a set of rules which is used to successively extract different structures from the test images – Order of segmentation/classification is: background and body � lungs and other intra-body air � fat, muscle and bones � spine and ribs – Incorporates knowledge about intensity distributions, neighborhood relations and object geometry • Automatic selection of a seed based on geometry, position and size relationship – Order of segmentation/classification is: liver seed � gall bladder • Automatic seed growing – Growing process is halted by previously detected contextual structures – Order of segmentation/classification is: liver seed � liver Medical Imaging – Princess Margaret Hospital – University Health Network – Mount Sinai Hospital – University of Toronto
Automatic Segmentation Algorithm Automatic Preprocessing Automatic Liver Seed Selection Algorithm: Liver Refinement/Growing Original Image updating Medical Imaging – Princess Margaret Hospital – University Health Network – Mount Sinai Hospital – University of Toronto
Page 1 and 2: Automated CT Based Liver Volume Ass
Page 3 and 4: Purpose To evaluate the accuracy of
Page 5: Methods • Five representative cas
Page 9 and 10: Based on intensity and size the bac
Page 11 and 12: Algorithm: Preprocessing Based on s
Page 13 and 14: Algorithm: Liver Seed Liver Seed 1.
Page 15 and 16: Based on size, a single liver seed
Page 17 and 18: Algorithm: Liver refinement/Growing
Page 19 and 20: Algorithm: Liver Refinement/Growing
Page 21 and 22: Algorithm: Update Original Image Re
Page 23 and 24: Results: Sample Segmentation I Stat
Page 25 and 26: Results: Summary • Correlation co
Page 27 and 28: Conclusion • Fully-automated segm

Automated CT Based Liver Volume Assessment - Definiens

Create successful ePaper yourself

Delete template?

Save as template?