University of Twente Student Theses


Holographic augmented reality in deep inferior epigastric perforator flap breast reconstruction

Luijten, Gijs (2020) Holographic augmented reality in deep inferior epigastric perforator flap breast reconstruction.

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Abstract:The DIEP flap is the first choice for autologous breast reconstruction. The identification, localization and intramuscular course of the epigastric perforators are essential for this surgery. Holographic augmented reality is an innovative technique that can be used to visualize this patient specific anatomy directly in the patient. In this study, the workflow is implemented in pre- and intraoperatively. An app for the HoloLens was developed to visualize the anatomy extracted from the CTA into the patient. Radiopaque skin-markers had been adhered to abdominal nevi; these nevi are used for registration purposes. The app was pre-clinically tested on phantom and volunteers. Thereafter, on twenty patients preoperatively, and two patients intraoperatively. In total there were 961 accuracy measurements divided over 20 patients. The overall error was 8.8±6.6 mm in the patient group. These results are comparable with the results in the preclinical trials. The holographic augmented reality workflow can be used to visualize the patient’s relevant anatomy for a flap harvest. This workflow can be used pre- and intraoperatively. The next step is to demonstrate that the workflow can be used to improve perforator localization and identification intraoperatively. Developed materials and methods for this workflow, could be applied to other surgery types.
Item Type:Essay (Master)
Faculty:TNW: Science and Technology
Subject:44 medicine, 50 technical science in general
Programme:Technical Medicine MSc (60033)
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