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題 名 | 高解析顳骨電腦斷層攝影在人工電子耳植入評估之應用=The Application of High Resolution Temporal Bone CT in Cochlear Implant Evaluation |
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作 者 | 李榮輝; 楊志明; 林昌平; 呂鎮中; 黃仲鋒; | 書刊名 | 中華放射線技術學雜誌 |
卷 期 | 36:2 2012.06[民101.06] |
頁 次 | 頁83-88 |
分類號 | 416.865 |
關鍵詞 | 人工電子耳蝸植入術; 高解析顳骨電腦斷層; 雙峰尖閾值3D影像; Cochlear implant; High resolution temporal bone CT; Two-spike threshold 3D image; |
語 文 | 中文(Chinese) |
中文摘要 | 人工電子耳植入(Cochlear implant)手術前,必須了解內耳與聽神經的微細構造,由於電腦斷層技術的大幅進步,影像解析能力益加提昇,其應用在人工電子耳之評估更加準確。由術前的診斷多方位軸位2D組像、耳蝸三度空間影像(Cochlea 3D image)到術後的評估組像與3D成像,在在顯示其重要性。本研究從2006年11月到2011年4月,共收集29名年齡1歲又11個月到11歲08個月之間(平均年齡4歲又08個月)的先天性聽力喪失患者(男:13 女:16),進行58次掃描攝影,所有案例均提供傳統斯氏位(Stenvers view)X光照片與CT軸、冠位圖像,並使用多方向重組影像(MPR,Multiple Planar Reformation)圖像重組,在3D像時使用雙峰尖閾值(Two-spike-threshold)技術,來取得內耳的3D解剖圖像,以提供內耳構造纖維化或骨化之情形、圓窗、鼓室、半規管與耳蝸圈數的必要訊息;診斷醫師依所提供的圖像,進行效果判斷,並將診斷效果以5分法的方式進行記錄。依統計分析結果顯示,以MPR加上3D圖像分組的得分4.8621 ± 0.3509效果優於其他2組,在進行單因子變異數分析(ANOVA)後,F值為143.415,p<0.01,與各組具顯著差異;足以顯示,高解析顳骨電腦斷層檢查MPR圖像,再加以雙峰尖閾值3D顯像處理,可以得到傳統的2D軸位影像,再搭配體積展示(Volume rendering; VR)的印證,更容易判斷電子耳植入位置的正確性。因此,雙峰尖閾值3D技術,確實有其在臨床上的應用價值。 |
英文摘要 | Detailed understanding of the inner ear and the anatomy of auditory nerve is mandatory for the pre-surgical evaluation of Cochlear Implant (CI), Because of the fast revolution of computed tomography (CT) technology; the resolution of the imaging has improved a lot. The application of CT in CI evaluation is now more accurate. This study includes 29 congenital hearing loss cases (13 males and 16 females with a mean age of 4.8 years (from 1.9 to 11.8 years)) in the period between November 2006 and April 2011. Pre-operative and post-operative images were performed, comparing simple X-ray (Stenvers view), Multiple Planar Reformation (MPR) images and combined three-dimension (3D) imaging techniques, such as volume rendering (VR), single and two spikes threshold methods. Results obtained with ANOVA analyzed show MPR+VR scores 4.8621±0.3509 and F (2, 1) =143.415, p<0.001 (significant) are better than the other two groups. By using the two-spikes- threshold technique, it is easier to demonstrate the implanted route of electrode and is particularly useful for surgeons. Therefore, for evaluation of CI candidates, two-spike-threshold CT technique has great clinical value. |
本系統中英文摘要資訊取自各篇刊載內容。