Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Computer-assisted risk prevention in surgical and interventional treatment of liver tumor

: Zidowitz, S.; Altrogge, I.; Hansen, C.; Hindennach, M.; Kröger, T.; Ojdanic, D.; Rieder, C.; Preußer, T.; Schenk, A.; Weihusen, A.; Wirtz, S.; Prause, G.; Peitgen, H.O.


Biomedizinische Technik 55 (2010), No. s1, pp.74-77
ISSN: 0013-5585
ISSN: 1862-278X
Deutsche Gesellschaft für Biomedizinische Technik (Jahrestagung) <44, 2010, Rostock>
Conference Paper
Fraunhofer MEVIS ()

Computational support in intervention planning promises to support the subjective interpretation of data with reproducible
measurements. Moreover, it is possible to develop and apply models that provide additional information which
is not directly visible in the data. Based on computer-tomography multi-slice images of the liver, the planning software
developed by Fraunhofer MEVIS provides valuable tools for the preoperative evaluation of surgical strategies. To support
the surgeon in the detailed assessment and optimization of procedures, image based criteria for the surgical planning
are provided in a quantitative manner for evidence-based decision making. In radiofrequency ablation of liver tumors,
the treatment success highly depends on an effective placement of the radiofrequency applicators into the tumor
to achieve sufficient coagulative necrosis. Beside tumor size and shape, the cooling effects of surrounding vessels are
taken into account for a numerical estimation of the accessible thermal destruction. A fast approximation of costly numerical
simulation supports the physician in finding an optimized placement. In order to transfer this preoperative planning
information into the intraoperative stage, it is important to clearly understand the user's needs in the restricted setting
of the clinical situation. The presentation of information according to cognitive needs calls for a context-driven reduction
of complexity. Alertness should be focused on critical locations. Our aim is to provide surgeons and physicians
with efficient tools for the assessment of planning information in diagnosis and therapy, which integrate well in the
workflow of liver interventions. In this paper we will discuss approaches for a reliable and robust computational support
developed at Fraunhofer MEVIS as part of the FUSION consortium.