Design and evaluation of an AR-based thermal imaging system for planning reconstructive surgeries.
Int J Comput Assist Radiol Surg
; 19(8): 1659-1666, 2024 Aug.
Article
em En
| MEDLINE
| ID: mdl-38789883
ABSTRACT
INTRODUCTION:
Thermal imaging can be used for the non-invasive detection of blood vessels of the skin. However, mapping the results to the patient currently lacks user-friendliness. Augmented reality may provide a useful tool to superimpose thermal information on the patient.METHODS:
A system to support planning in reconstructive surgery using a thermal camera was designed. The obtained information was superimposed on the physical object using a Microsoft HoloLens. An RGB, depth, and thermal camera were combined to capture a scene of different modalities and reconstruct a virtual scene in real time. To register the different cameras and the AR device, an active calibration target was developed and evaluated. A Vuforia marker was used to register the hologram in the virtual space. The accuracy of the projected hologram was evaluated in a laboratory setting with participants by measuring the error between the physical object and the hologram.RESULTS:
The AR-based system was evaluated by 21 participants in a laboratory setting. The mean projection error is 10.3 ± 9.4 mm. The system is able to stream a three-dimensional scene with augmented thermal information in real time at 5 frames per second. The active calibration target can be used independently of the environment.CONCLUSION:
The calibration target provides an easy-to-use method for the registration of cameras capturing the visible to long-infrared spectral range. The inside-out tracking of the HoloLens in combination with a Vuforia marker is not accurate enough for the intended clinical use.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Procedimentos de Cirurgia Plástica
/
Realidade Aumentada
Limite:
Humans
Idioma:
En
Revista:
Int J Comput Assist Radiol Surg
/
Int. j. comput. assist. radiol. surg. (Internet)
/
International journal of computer assisted radiology and surgery (Internet)
Assunto da revista:
RADIOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Alemanha