HoloInjection: augmented reality support for CT-guided spinal needle injections

Healthcare Technology Letters

article

Florian Heinrich¹  Luisa Schwenderling¹  Mathias Becker²  Martin Skalej²  Christian Hansen¹ 

[1] Faculty of Computer Science, University of Magdeburg, Universitätsplatz 2;Research Campus STIMULATE;Department of Neuroradiology, University Hospital Magdeburg

关键词: radiation therapy;    phantoms;    computerised tomography;    needles;    augmented reality;    medical image processing;    image registration;    CT-guided spinal needle injections;    minimally-invasive interventions;    needle insertions;    radiological imaging;    spinal targets;    out-of-plane needle orientation errors;    high registration accuracy;    out-of-plane orientation errors;    in-plane orientation errors;    augmented reality support;    holoinjection;    mixed reality glass Microsoft HoloLens;   

DOI  :  10.1049/htl.2019.0062

学科分类：肠胃与肝脏病学

来源: Wiley

【 摘 要 】

The correct placement of needles is decisive for the success of many minimally-invasive interventions and therapies. These needle insertions are usually only guided by radiological imaging and can benefit from additional navigation support. Augmented reality (AR) is a promising tool to conveniently provide needed information and may thus overcome the limitations of existing approaches. To this end, a prototypical AR application was developed to guide the insertion of needles to spinal targets using the mixed reality glasses Microsoft HoloLens. The system's registration accuracy was attempted to measure and three guidance visualisation concepts were evaluated concerning achievable in-plane and out-of-plane needle orientation errors in a comparison study. Results suggested high registration accuracy and showed that the AR prototype is suitable for reducing out-of-plane orientation errors. Limitations, like comparatively high in-plane orientation errors, effects of the viewing position and missing image slices indicate potential for improvement that needs to be addressed before transferring the application to clinical trials.

【 授权许可】

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