The University of Alberta in Canada has introduced an innovative Augmented Reality (AR) system named ProjectDR, which projects medical images like CT scans and MRIs directly onto a patient’s body. This allows doctors to visualize the internal anatomy in real time without making any incisions, significantly enhancing precision during procedures.
Developed by Ian Watts, a computer science student at the University of Alberta, and his colleague Michael Fiest, ProjectDR features an action tracking system that uses infrared sensors and a body-mounted marker. A projector then overlays the medical images onto the patient's body, creating an interactive and immersive experience for medical professionals.
One of the biggest challenges in the project was ensuring accurate image alignment even when the patient moved. To address this, Watts created custom software that synchronizes all components of the system, allowing for smooth and reliable tracking.
This technology has a wide range of applications, including medical education, physical therapy, laparoscopic surgery, and pre-operative planning. It can also display segmented images—such as just the lungs or blood vessels—depending on what the doctor needs to see. The team is currently working on improving the system’s automatic calibration and plans to integrate depth-sensing components to enhance accuracy.
Professor Pierre Boulanger, the research project director from the Department of Computing Science, emphasized that the next step is to test the system in a clinical environment. They plan to install ProjectDR in the Surgery Simulation Lab’s operating room to evaluate its performance in real surgical scenarios.
Greg Kawchuk, co-director of the project, mentioned that they are also conducting pilot studies to explore how the system can be used in teaching chiropractic and physical therapy techniques. Once these studies are completed, the team will move toward real-world surgical trials.
ProjectDR was showcased at the Virtual Reality Software and Technology Symposium in Gothenburg, Sweden, in November 2017, where it received positive feedback from researchers and medical professionals alike. With ongoing improvements and real-world testing, this AR system has the potential to revolutionize the way medical professionals interact with patient data and perform procedures.
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