中耳

Numerical analysis is conducted and employed to predict the effects of middle ear cavity, malleus handle defect, hypoplasia of the long process of incus, and stapedial crus defect on sound transmission.

利用模型进行了外耳，中耳和内耳的声固耦合分析，研究了中耳腔，锤骨柄缺如，砧骨长脚畸形和镫骨足弓畸形对传声机制的影响。

At present, the study about electromagnetic IMHD have got prominent performance at home and abroad,and have correlative products in market,but the study about piezoelectric IMHD is just in juvenility phase.

目前国内外就电磁型中耳植入装置有着较多的研究，取得突出性的成果，并有相关的产品出现，但压电式中耳植入助听装置研究技术并不成熟。

Reconstruction of middle ear with homologous costal cartilage is a ideal surgery toreconstruct hearing structure and avoid infection of middle cavity after radical mastoidectomy.

用同种异体肋软骨行乳突根治术后的中耳重建术，是解决乳突腔重新中耳化、听力重建、防止术腔感染的较为理想的术式。

Reconstruction of middle ear with homologous costal cartilage is a ideal surgery to reconstruct hearing structure and avoid infection of middle cavity after radical mastoidectomy.

用同种异体肋软骨行乳突根治术后的中耳重建术，是解决乳突腔重新中耳化，听力重建，防止术腔感染的较理想术式。

Results Among these cases,the main CT features of the tympanic cholesteatoma included:soft tissue density tumor shadows in the tympanic sinus and cavity;bone destruction;sclerosis of the bone borders of tympanic sinus and cavity;destruction and shifting of the auditory ossicle chain.

结果 该组病例中，胆脂瘤性中耳炎的CT主要表现有：中耳窦腔内软组织密度瘤影；骨质破坏；中耳窦腔骨缘硬化；听小骨链破坏、移位。

Results: HRCT findings of choleastoma of the middle ear were abnormal soft-tissue shadows in tympanic cavity and antrum and accompany with bony destruction, including dislocation and distruction of the ossicular chain, the erosion of scutum and...

结果 ：66例中耳胆脂瘤HRCT表现为鼓室/鼓窦内团块状软组织影和骨质改变，包括听骨硬化、移位、破坏，盾板破坏及中耳腔扩大，有的还伴有乙状窦、天盖、面神经管及水平半规管的破坏。

Results HRCT findings of 45 cases of chronic otitis media with cholesteatoma included abnormal soft-tissue mass shadows in tympanic cavity of middle ear,sclerotic mastoid were observed in most cases, and bone changes including enlargment of the tympanic cavity with sclerotic border, the dislocation and destruction of the ossicles.The sigmoid sinus plate,tympanic tegmen, semicircular canal and facial nerve canal were destroyed in severe cases.

结果 胆脂瘤型慢性中耳炎患者HRCT表现：①45例均见中耳腔内团块状软组织影；②40例为硬化型乳突（88.9%）；③骨质改变包括中耳腔扩大和周缘骨质硬化、听小骨的移位、破坏、乳突骨质的破坏，严重者可伴有乙状窦壁、鼓室盖、面神经管及半规管的破坏。

HPV infection can arouse the cleavage and proliferation of cholesteatoma epithelium and may play certain role in the occurrence and development of middle ear cholesteatoma. Aggressive, papillomatous growth and koilocytes can be served as the initial proof of HPV infection in cholesteatoma of the middle ear.

HPV感染可能激发中耳胆脂瘤上皮的分裂增殖，在中耳胆脂瘤发生发展中起一定的作用；侵蚀性乳头瘤样生长和空晕细胞改变可以作为中耳胆脂瘤组织中HPV感染的病理学证据。

There were six themes in this study. First of all, the geometry of in-vivo human pinna and ear canal was measured non-invasively. The 3D model of pinna and ear canal was reconstructed and then measured based on the image processed by HRCT. Second, the 2D curvature of in-vivo human ear canal was measured non-invasively. The angles and curvatures of superior and inferior walls of first and second bends were measured. The 2D curvature of ear canal was computed by sine and cosine laws. Third, the in-vivo human ear canal was reconstructed by RE. The distribution of sound field was analyzed by FEM. The data obtained in this study can be the reference for clinicians and audiologists. Fourth, the 3D model of earmold of hearing aids, including the ear shell and the housing, was reconstructed by RE based on the image of in-vivo human ear canal obtained by CT.

本研究主题其四，对於听力受损之患者往往皆须选配助听器帮助其放大声音，其中耳模是助听器的外壳，也是接触到耳朵的仪器，而耳道型助听器系位於耳甲艇及耳甲腔延伸至耳道第一弯道处，在制作耳模必须利用灌模方式来取得紧配之耳模，其中耳模在助听器的使用过程中，常因耳模松脱，无法与人耳道紧密配合而造成漏音，因此，利用活体人外耳道电脑断层影像，重建耳道型助听器耳模之三维立体模型影像，其中耳模包括了耳壳及耳模内部空间，并进行几何外型量测，探讨耳道型助听器之体容积大小，也提供了制作耳模时快速、精确度高、减少翻模及修模次数，可减少误差率之方法。

Middle ear cholesteatoma is destructive to auditory ossicles and temporal bone, and treatment usually requires surgical removal of all epithelial content.

中耳胆脂瘤在临床上对於中耳裂具有相当的破坏性，而治疗上通常必须藉手术清除中耳腔所有的胆脂瘤上皮成分。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。