What is it about?
Percutaneous procedures rely on X-ray imaging performed using C-arm X-ray systems. Since the anatomy is occluded by tissue and skin, it is not directly obvious where the C-arm must be positioned to acquire the desired view of the occluded anatomy, in this case the pelvis. In many procedures, the C-arm must, in fact, be repositioned multiple times to free the operating field, but must then be re-introduced to verify procedural progress. We propose an Augmented Reality based solution to aid repositioning.
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Why is it important?
This repositioning usually takes time and unnecessarily increases the X-ray dose to patient and operating team, such that solutions are required that 1) speed up the intra-operative workflow and 2) reduces exposure.
Perspectives
This is a very early prototype of an augmented reality based system and exhibits several limitations that are discussed extensively in the manuscript. However, the concept of user-in-the-loop guidance is interesting since it exploits sensing rather than navigation and thus has potential to yield less intrusive computer assisted solutions in the operating room.
Mathias Unberath
Johns Hopkins University
Read the Original
This page is a summary of: Augmented Reality-based Feedback for Technician-in-the-loop C-arm Repositioning , Healthcare Technology Letters, August 2018, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/htl.2018.5066.
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