Canada January-February 2018
Sumario
Stay on The Perk Lab - Laboratory for Percutaneous Surgery
Researchers: Guillermo Valentín Socorro Marrero, B.Sc. (GTMA), José Carlos Ruiz Luque, Ph.D. (GTMA)
Summary
During the stay, two projects were developed: an image-guided navigation system for the percutaneous procedures and a volumetric reconstruction from ultrasound image.
The project aims at creating and integrating an Image Guided Therapy (IGT) ultrasound training system in 3D Slicer. Specifically, the main objective is the implementation of an affordable navigated ultrasound simulator based on ArUco low cost optical trackers. The ultrasound simulator already implemented in the PLUS Toolkit is used as reference and new geometrical models will be included. The following training activities were included among the tasks:
- A lesson on the instrument calibration (needle, ultrasound probe, phantoms, etc.) in the ultrasound simulator.
- Analysing and developing several strategies in order to improve the instrument calibration in the ultrasound simulator.
- Practical lessons on the advanced strategies of the ultrasound probe calibration in real ultrasound machines.
- Design of the physical elements required for the puncture training system.
- Setting up the software environment required by the TELEMED MicrUS portable ultrasound equipment.
- Practical lessons on image-guided navigation systems using 3D Slicer and PLUS toolkit.
- A lesson on the PerkTutor application which is a training platform for US-guided needle insertions. The Perktutor evaluates For the evaluation of the acquisition of skills in training systems.
- A lesson on OptiTrack tracking system using 3D Slicer and PLUS toolkit.
- Printing and assembly of the physical elements required for the image-guided navigation system.
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A volumetric reconstruction of the bone fractures from ultrasound images
The objective is to generate the volumetric visualization of the bone fractures from ultrasound images. The first studying fractures are the oblique fractures of the femur with two displacement values (three and six mm). The following training activities were included among the tasks:
- Creating the geometric representations (STL files) of the oblique fractures of the femur with two displacement values (3 and 6 mm). They were printed in 3D printer.
- A lesson on generating phantoms. In this lesson, the materials and the process building phantom were explained. Two phantoms about the bone fracture were built.
- Acquiring the ultrasound images from the generated phantom for the project of volumetric reconstruction of bone fractures.
