Comparative Analysis of Middle Ear Prostheses Using Photon-Counting Detector CT versus Conventional CT

BACKGROUND AND PURPOSE: Middle ear prostheses are among the smallest implanted medical devices, with diameters as small as 0.25 mm. Accurate postoperative imaging is critical for assessing prosthesis placement, detecting complications such as dislodgement or extrusion, and informing potential revisions. Conventional energy-integrating detector CT (EID-CT) is traditionally used for imaging these implants; however, with the recent clinical use of photon-counting detector CT (PCD-CT), further analysis on multiple parameters is required to assess future utility. This study compares the spatial resolution and visualization quality of middle ear prostheses between EID-CT and PCD-CT. We hypothesize that PCD-CT will provide superior spatial resolution of prostheses, allowing for more accurate postoperative assessments to facilitate improved clinical decision-making. MATERIALS AND METHODS: tests were used to assess differences in image-quality metrics between PCD-CT and EID-CT. RESULTS: = .002). CONCLUSIONS: PCD-CT demonstrates advantages in spatial resolution and image quality over conventional EID-CT for postoperative evaluation of middle ear prostheses. Enhanced visualization may improve diagnostic confidence and enable more accurate postoperative assessment and complication detection.