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  4. Intervention assessment tool for primary tumors in the liver
 
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2018
Journal Article
Title

Intervention assessment tool for primary tumors in the liver

Abstract
After a liver tumor intervention the medical doctor has to compare both pre and postoperative CT acquisitions to ensure that all carcinogenic cells are destroyed. A correct assessment of the intervention is of vital importance, since it will reduce the probability of tumor recurrence. Some methods have been proposed to support the medical doctors during the assessment process, however, all of them focus on secondary tumors. In this paper a tool is presented that enables the outcome validation for both primary and secondary tumors. Therefore, a multiphase registration (preoperative arterial and portal phases) followed by a registration between the pre and postoperative CT images is carried out. The first registration is in charge of the primary tumors that are only visible in the arterial phase. The secondary tumors will be incorporated in the second registration step. Finally, the part of the tumor that was not covered by the necrosis is quantified and visualized. The method has been tested in 9 patients, with an average registration error of 1.41 mm.
Author(s)
Oyarzun Laura, Cristina  
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Drechsler, Klaus
FH Aachen
Erdt, Marius  
Fraunhofer Singapore  
Wesarg, Stefan  
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Bale, Reto
Medizinische Univ. Innsbruck
Journal
Current directions in biomedical engineering  
Open Access
DOI
10.1515/cdbme-2018-0081
Language
English
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Keyword(s)
  • liver

  • tumor

  • registration

  • matching

  • validation

  • assessment

  • Lead Topic: Individual Health

  • Research Line: Computer vision (CV)

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