by André Mewes, Florian Heinrich, Bennet Hensen, Frank Wacker, Kai Lawonn, Christian Hansen
Abstract:
During MRI-guided interventions, navigation support is often separated from the operating field on displays, which impedes the interpretation of positions and orientations of instruments inside the patient's body as well as hand–eye coordination. To overcome these issues projector-based augmented reality can be used to support needle guidance inside the MRI bore directly in the operating field. The authors present two visualisation concepts for needle navigation aids which were compared in an accuracy and usability study with eight participants, four of whom were experienced radiologists. The results show that both concepts are equally accurate ( 2.0 ± 0.6 and 1.7 ± 0.5 mm ), useful and easy to use, with clear visual feedback about the state and success of the needle puncture. For easier clinical applicability, a dynamic projection on moving surfaces and organ movement tracking are needed. For now, tests with patients with respiratory arrest are feasible.
Reference:
Concepts for augmented reality visualisation to support needle guidance inside the MRI (André Mewes, Florian Heinrich, Bennet Hensen, Frank Wacker, Kai Lawonn, Christian Hansen), In Healthcare Technology Letters, volume 5, 2018.
Bibtex Entry:
@article{mewes_concepts_2018,
title = {Concepts for augmented reality visualisation to support needle guidance inside the {MRI}},
volume = {5},
copyright = {This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)},
url = {https://digital-library.theiet.org/content/journals/10.1049/htl.2018.5076},
doi = {10.1049/htl.2018.5076},
abstract = {During MRI-guided interventions, navigation support is often separated from the operating field on displays, which impedes the interpretation of positions and orientations of instruments inside the patient\'s body as well as hand–eye coordination. To overcome these issues projector-based augmented reality can be used to support needle guidance inside the MRI bore directly in the operating field. The authors present two visualisation concepts for needle navigation aids which were compared in an accuracy and usability study with eight participants, four of whom were experienced radiologists. The results show that both concepts are equally accurate ( 2.0 ± 0.6 and 1.7 ± 0.5 mm ), useful and easy to use, with clear visual feedback about the state and success of the needle puncture. For easier clinical applicability, a dynamic projection on moving surfaces and organ movement tracking are needed. For now, tests with patients with respiratory arrest are feasible.},
language = {English},
number = {5},
journal = {Healthcare Technology Letters},
author = {Mewes, André and Heinrich, Florian and Hensen, Bennet and Wacker, Frank and Lawonn, Kai and Hansen, Christian},
month = oct,
year = {2018},
keywords = {augmented reality visualisation, displays, hand–eye coordination, MRI-guided interventions, needle guidance, needle navigation aids, needle puncture, operating field, patient, positions, projector-based augmented reality, visual feedback},
pages = {172--176(4)}
}