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Feasibility of micro-computed tomography for evaluating anatomical landmarks in temporal bone specimens
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DOI：10.1093/rpd/ncaf146.png)
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Abstract
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Photon counting computed tomography (PCCT) provides exceptional image quality with reduced radiation dose in temporal bone imaging and is emerging as a potential new gold standard. This study aims to assess the feasibility of an in-house micro-computed tomography (micro-CT) system equipped with Photon Counting Detector (PCD) technology and to compare it with a clinical PCCT scanner for temporal bone evaluation. A fresh-frozen temporal bone specimen was scanned with both systems, focusing on four anatomical landmarks: stapes, lateral semicircular canal, tympanic segment of the facial nerve canal, and modiolus. Two radiologists assessed the landmarks, using clinical PCCT images as the reference. The in-house micro-CT achieved a high resolution of 32.5 mu m, enabling excellent visualization of the landmarks. These results demonstrate that the PCD micro-CT system is a feasible and valuable tool, offering important insights into the complex structures of the middle and inner ear for advancing both clinical and research applications.
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