Cochlear implant radiography: technique adapted into a portable apparatus

Abstract

Although the portable X-ray apparatus presents limitations, the employment of proper techniques and accessories makes possible the obtainment of satisfactory radiographies to observe cochlear implants.

Measurement of Cochlear Implant Electrode Position From Intraoperative Post-insertion Skull Radiographs

“…While simple to understand, these methods require either a post-insertion computed tomography (CT) scan, which adds radiation, cost and time to the procedure [1-3, 6], or a precisely protocolled skull radiograph that requires expertise of the technician and usually adds an extra postoperative visit for the patient [4, 7, 8]. Additionally, image processing software is needed to calculate angles and distances of the electrode contacts.…”

Utility of intraoperative imaging in cochlear implantation: A systematic review

“…Both studies cited the risk of cataracts due to radiation exposure and discussed the potential for the preoperative CT scan and possible multiple intraoperative radiographs culminating in a harmful amount of radiation, especially in the pediatric population. However, the other five studies examining intraoperative X‐ray in this systematic review concluded that intraoperative X‐ray was useful . The rate of electrode misplacement across these studies, 2.2%, is low but not negligible, which is considered to be a major complication because accurate placement is critical for successful auditory rehabilitation .…”

“…However, the other five studies examining intraoperative X-ray in this systematic review concluded that intraoperative X-ray was useful. 9,12,[22][23][24] The rate of electrode misplacement across these studies, 2.2%, is low but not negligible, which is considered to be a major complication because accurate placement is critical for successful auditory rehabilitation. 19 Revision surgery in these patients incurs additional cost and may cause increased morbidity.…”

Advancing Cochlear Implant Programming: X-ray Guided Anatomy-Based Fitting

“…Similarly, Shpizner et al (32) reported that a Stenvers (45 degrees) and an anterior-posterior projection is sufficient to confirm the electrode placement. Molezini et al (33) described a radiological technique that uses two views with a portable X-ray device. This included anteroposterior (transorbital) and 45-degree oblique views (Stenvers' method).…”