Towards a bimodal proximity sensor for in situ neurovascular bundle detection during dental implant surgery.
Proof of concept results are presented towards an in situ bimodal proximity sensor for neurovascular bundle detection during dental implant surgery using combined near infrared absorption (NIR) and optical coherence tomography (OCT) techniques. These modalities are shown to have different sensitivity to the proximity of optical contrast from neurovascular bundles. NIR AC and DC signals from the pulsing of an artery enable qualitative ranging of the bundle in the millimeter range, with best sensitivity around 0.5-3mm distance in a custom phantom setup. OCT provides structural mapping of the neurovascular bundle at sub-millimeter distances in an ex vivo human jaw bone. Combining the two techniques suggests a novel ranging system for the surgeon that could be implemented in a "smart drill." The proximity to the neurovascular bundle can be tracked in real time in the range of a few millimeters with NIR signals, after which higher resolution imaging OCT to provide finer ranging in the sub-millimeter distances.
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Jessie R
JR
Weber
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
François
F
Baribeau
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Paul
P
Grenier
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Frédéric
F
Emond
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Sylvain
S
Dubois
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
François
F
Duchesne
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Marc
M
Girard
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Timothy
T
Pope
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Pascal
P
Gallant
Institut national d'optique (INO), 2740 rue Einstein, Québec, QC G1P 4S4, Canada.
Ozzy
O
Mermut
The Ottawa Hospital, 3409 Carling Avenue, Ottawa, ON K2H 7V5, Canada.
Hassan Ghaderi
HG
Moghadam
(170.0170) Medical optics and biotechnology; (170.1610) Clinical applications; (170.1850) Dentistry; (170.4500) Optical coherence tomography; (170.6510) Spectroscopy, tissue diagnostics