Detectability of minute temporal bone structures with ultra-high resolution CT
Detectability of minute temporal bone structures with ultra-high resolution CT
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DOI：
10.1016/j.anl.2019.03.007
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发表时间：
2019-12-01
影响因子：
1.7
通讯作者：
Sato, Hiroaki
中科院分区：
文献类型：
--
作者：
Hiraumi, Harukazu;Obara, Makiko;Sato, Hiroaki
目的：CT是诊断颞骨病变的首选影像学工具。随着成像技术的进步，具有更高空间分辨率的CT（超高分辨率CT）已可用于临床。本研究的目的是评价小颞骨结构的超高分辨率CT.Material和方法的可视性：27分钟颞骨结构的超高分辨率CT图像的可视性进行了评价。对18只听力正常、无耳科疾病的耳行非螺旋轴位扫描。由一位经验丰富的放射科医生和耳科医生进行评分的能见度。结果：分钟颞骨结构，包括听骨链，镫骨，岩浅大神经，和前踝韧带的超高分辨率CT清晰可见。结论：超高分辨率CT可显示正常人颞骨小结构，并可显示镫骨肌腱和鼓索从后泪小管穿出，向锤骨内侧走行。(C)2019 Elsevier B.V.版权所有。
Objective: Computed tomography (CT) is the imaging tool of choice in the diagnosis of temporal bone lesions. With the recent progress in imaging technology, CT with higher spatial resolution (Ultra-high resolution CT) has become available in the clinical setting. The purpose of this study is to evaluate the visibility of small temporal bone structures using ultra-high resolution CT.Material and methods: The visibility of 27 minute temporal bone structures on ultra-high resolution CT images was evaluated. Non-helical axial scans were performed in 18 normal hearing ears without previous otologic diseases. Visibility was scored by an experienced radiologist and otologist.Results: Minute temporal bone structures including the ossicular chain, the crus of the stapes, the greater superficial petrosal nerve, and the anterior malleolar ligament were clearly visualized on ultra-high resolution CT. The stapedius muscle tendon and the chorda tympani exiting the posterior canaliculus and coursing medial to the malleus could be visualized.Conclusion: Ultra-high resolution CT provides good visualization of small temporal bone structures in normal subjects. (C) 2019 Elsevier B.V. All rights reserved.