Surgery Planning Software for Vascular Prostheses Implantation

Requirements Analysis for the Development of a Surgical Planning Software for the Implantation of Vascular Prostheses Requirements Analysis for Stent Planning and Intraoperative Use and, Based on this, Development of a Modular System Architecture to Support the Therapeutic Process

Project description

The project deals with the definition of requirements for surgical planning software, which will focus on the surgical use of stent grafts. Furthermore the feasibility of a physically based simulation model for the assessment of stent graft fixation and sealing potential are studied and requirements for a software module for analyzing the results in the medical environment will get defined. The writability of the resulting data is based primarily on existing standards. Required extensions are also included.

Main topics of the project

• Implant selection in endovascular surgery
• Integration of Finite Element Method (FEM) in a medical planning software
• Human-Machine Interaction
• Workflow analysis
• Medical standards: DICOM

Problem

A common complication of endovascular aortic aneurysm exclusion is the slipping of the stent graft resulting in insufficient sealing of the vessel. This post-operative complication may be associated with the selection of the vascular implant in the compound. In particular the determination of the stent graft oversize for the fixation of the implant in the vessel is of crucial importance.

Figure 1: Integration of Calculation Results (FEM Model) into Medical Planning Software for the Evaluation of Stent Graft Properties (Fixation and Sealing Potential)

Figure 2: EVAR Patient Model: Description of all Intervention Relevant Data. Integration of Simulation-Specific Data Using Standardized Data Structures

Research goals

• Integration of FEM results in a medical scheduling software for better assessment of migration and leakage risk in endovascular aortic aneurysm exclusion
• Support the physician in selecting a suitable vessel implant through the quantified assessment of stent graft properties in the implanted state