Comparison of photon-counting CT and conventional CT for cochlear implant preoperative planning.

IF 1.2 Q2 OTORHINOLARYNGOLOGY

COCHLEAR IMPLANTS INTERNATIONAL Pub Date : 2025-09-15 DOI:10.1080/14670100.2025.2555115

Raphaële Quatre, Åsa Bonnard, Martin Eklöf, Fatima M Denanto, Torkel B Brismar, Jeremy Wales

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引用次数: 0

Abstract

Introduction: Accurate cochlear measurements are crucial for personalized cochlear implantation, requiring high-quality imaging for precise cochlear duct length (CDL) assessment. Photon-counting computed tomography (PC-CT) is an advanced imaging technique that enhances image quality while reducing radiation exposure. The aim of this study was to compare PC-CT and conventional CT in cochlear measurements using cochlear implant planning software in patients with a unilateral cochlear implant.

Method: This prospective study was conducted at a tertiary referral center. All patients had a previous conventional temporal bone CT before cochlear implantation and a PC-CT of the temporal bone for the post implant evaluation. Image analysis for both PC-CT and CT was performed with the OTOPLAN version 3.0 software manually and independently by three different otologist experts in the field.

Results: Ten cochleae were evaluated. The mean full CDL was 35.81 ± 1.22 mm in CT and 35.99 ± 1.94 mm in PC-CT (P = 0.77) Inter-observer reliability was poor for CT with an intra-correlation coefficient of 0.16 and moderate for PC-CT with an intra-correlation coefficient of 0.71.

Conclusion: This study demonstrated the advantages of PC-CT over conventional CT by improving the reliability and reproducibility of CDL measurements in patients.

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光子计数CT与常规CT在人工耳蜗术前规划中的比较。

准确的耳蜗测量对个性化人工耳蜗植入至关重要，需要高质量的成像来精确评估耳蜗导管长度（CDL）。光子计数计算机断层扫描（PC-CT）是一种先进的成像技术，可以提高图像质量，同时减少辐射暴露。本研究的目的是比较使用人工耳蜗计划软件对单侧人工耳蜗患者进行人工耳蜗测量的PC-CT和常规CT。方法：本前瞻性研究在三级转诊中心进行。所有患者在人工耳蜗植入前均行常规颞骨CT检查，植入后均行颞骨PC-CT检查。PC-CT和CT的图像分析均由三位不同领域的耳科专家手动独立使用OTOPLAN 3.0版软件进行。结果：对10只耳蜗进行了评估。CT和PC-CT的平均全CDL分别为35.81±1.22 mm和35.99±1.94 mm （P = 0.77）。CT的观察者间信度较差，相关系数为0.16，PC-CT的观察者间信度中等，相关系数为0.71。结论：本研究通过提高患者CDL测量的可靠性和可重复性，证明了PC-CT优于传统CT的优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

COCHLEAR IMPLANTS INTERNATIONAL Medicine-Otorhinolaryngology

CiteScore

3.10

自引率

0.00%

发文量

期刊介绍： Cochlear Implants International was founded as an interdisciplinary, peer-reviewed journal in response to the growing number of publications in the field of cochlear implants. It was designed to meet a need to include scientific contributions from all the disciplines that are represented in cochlear implant teams: audiology, medicine and surgery, speech therapy and speech pathology, psychology, hearing therapy, radiology, pathology, engineering and acoustics, teaching, and communication. The aim was to found a truly interdisciplinary journal, representing the full breadth of the field of cochlear implantation.