See through

The ProjectDR system allows you to project on the human body the results of imaging research methods: computer and magnetic resonance imaging. Thus, the doctor sees the internal structure of the patient "in the context" of the body.

The technology includes motion tracking using infrared cameras and markers attached to the patient's body, as well as a projector for displaying CT or MRI images. The problem was the correct positioning of the image on the patient's body, even when he is moving. It was solved by special software written by one of the authors of the study, Ian Watts.

The scope of possible application of ProjectDR is extensive: it includes teaching, physiotherapy, laparoscopy and even planning of abdominal operations.

In addition, ProjectDR makes it possible to project segmented images, for example, only lungs or only vessels – depending on what exactly the doctor is interested in.

Currently, work is underway to improve the system for automatic calibration and adding characteristics such as depth.

The ProjectDR system is planned to be deployed in the laboratory with surgical simulators in the near future in order to assess the advantages and disadvantages of development in the operating room.

Experiments are also being conducted to test ProjectDR as an assistant in the training of surgeons and physiotherapists.

The developers hope that their brainchild will prove itself well, and the next step will be its use in a real surgical operation.

ProjectDR was presented in November 2017 in Gothenburg (Sweden) at the 23rd Virtual Reality Software and Technology Symposium.

Aminat Adzhieva, portal "Eternal Youth" http://vechnayamolodost.ru based on the materials of the University Of Alberta: Augmented reality system lets doctors see under patients' skin without the scalpel.