T he use of intraoperative surgical navigation has improved the safety and efficacy of select sinus operations and has facilitated the expansion of endoscopic skull base approaches. Transoral surgery (TOS) has revolutionized management of tumors of the pharynx and larynx. Intraoperative surgical navigation may play a role in assessing tumor extent and avoidance of critical structures in TOS but has not been studied. Unlike the case with imaging acquired for sinus and skull base surgery, the upper aerodigestive tract anatomy changes once the patient undergoes general anesthesia and during suspension laryngoscopy, thus rendering preoperative imaging unusable. With the availability of intraoperative computed tomography (CT) and magnetic resonance imaging (MRI) at an increasing number of medical centers, investigating the application of this technology for TOS is feasible. However, one challenge is that TOS instrumentation is made of stainless steel and is contraindicated in MRI and creates significant artifact on CT. In this report, we present a 3-dimensional (3D) printed laryngoscope made of biocompatible polymer that is compatible with both CT and MRI.
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