The therapeutic use of radiation has been increasingly explored as a method of treatment for ventricular tachycardia and atrial fibrillation. In stereotactic arrhythmic radioablation (STAR), small beams of radiation are delivered to an intra-cardiac target volume.
Cardiac and respiratory motion from the patient can throw off the accuracy of the beam.
To achieve a clinically acceptable dose distribution in surrounding healthy tissue, motion management by real-time imaging may be required: either by moving the beam with the target (tracking) or suspending irradiation when the target is not in the beam path (gating). To assess whether such a treatment can be accurately delivered, it must first be tested using a clinically realistic phantom.
The aim of this project is to develop a phantom that allows a dose measurement to be performed inside a phantom heart that mimics the motion of a patient heart.
This will be achieved through the analysis of previously acquired 4D cardiac MRI data from the Herston Imaging Research Facility, and the use of 3D printing facilities of the Herstion Biofabrication Insitute and Royal Brisbane Women’s Hospital.
As part of the research project, you will be involved in:
- analysing medical imaging data.
- designing radiotherapy treatment phantom, including programmable motion.
- fabricating and testing the phantom.
- evaluating the phantom's performance in radiotherapy and MRI.
There is a possibility of performing dosimetry studies, such as delivering and verifying the measurement of dosage, as part of this project.
As a result of this research project, we expect to achieve a design for the phantom and, if possible, a fabrication of the phantom.
Dosimetry studies may also be achieved if the scope of the project allows it.
Skills and experience
If you have any familiarity with 3D modelling, robotics and medical images it will be preferred.
You may be able to apply for a research scholarship in our annual scholarship round.
Contact the supervisor for more information.