【摘要】：目的： 通過虛擬CT耳鏡觀察,探討其對(duì)先天性耳畸形聽骨鏈病變的診斷價(jià)值。 方法： 對(duì)30例(43耳)先天性耳畸形患者,高分辨率CT掃描獲取病變部位的原始圖像數(shù)據(jù),經(jīng)三維重建后,以虛擬CT耳鏡方式觀察聽骨鏈病變情況,并與手術(shù)探查結(jié)果進(jìn)行對(duì)比分析。 結(jié)果： 虛擬CT耳鏡清楚顯示發(fā)育不全的聽小骨及畸形聽骨鏈狀態(tài),其中外耳道閉鎖21例(30耳),包括錘骨發(fā)育不全18耳,砧骨發(fā)育不全13耳,錘砧骨缺如3耳,鐙骨畸形13耳,鐙骨缺如4耳,錘砧關(guān)節(jié)畸形融合20耳,砧鐙關(guān)節(jié)畸形融合7耳,砧鐙關(guān)節(jié)軟組織連接2耳；9例(13耳)單純性中耳畸形,其中錘骨頭與砧骨體包埋在上鼓室內(nèi)上壁2耳,錘骨頭與上鼓室壁骨性連接3耳,錘骨柄遠(yuǎn)端與鼓環(huán)骨性連接1耳,砧骨長(zhǎng)腳發(fā)育不全4耳,鐙骨異位1耳,鐙上結(jié)構(gòu)缺如3耳,其中前庭窗閉鎖1耳,鐙上結(jié)構(gòu)畸形2耳。31耳行手術(shù)治療,術(shù)前虛擬CT耳鏡觀察與術(shù)中探查聽骨鏈異常符合率為98.67%。 結(jié)論： 虛擬CT耳鏡清楚顯示先天性耳畸形聽骨鏈異常結(jié)構(gòu),為術(shù)前明確診斷和確立手術(shù)方式提供可靠的影像學(xué)依據(jù)。
[Abstract]:Objective: to evaluate the diagnostic value of virtual CT otoscope in the diagnosis of ossicular chain disease of congenital deformity of ear. Methods: thirty patients (43 ears) with congenital ear malformation were examined by high resolution CT scanning. After 3D reconstruction, the ossicular chain lesions were observed by virtual CT otoscope. The results were compared with the results of surgical exploration. Results: the hypoplasia of the auditory ossicles and the deformed ossicular chains were clearly demonstrated by virtual CT otoscopy. Among them, 21 cases (30 ears) were atresia of the external auditory meatus, including 18 ears of malus dysplasia, 13 ears of hypoplasia of the incus and 3 ears of the absence of the malus incus. 13 ears of stapes deformity, 4 ears of stapes deformity, 20 ears of malar anvil joint malformation, 7 ears of anvil stirrup joint malformation, 9 cases (13 ears) of simple middle ear deformity of 9 cases (13 ears) of soft tissue connection of incudal joint. Among them, the mallet bone and the incus were embedded in 2 ears of the upper wall of the upper tympanic chamber, 3 ears were connected with the wall of the superior tympanic wall, 1 ear was connected with the bone of the tympanic ring at the distal end of the stalk of the malleus bone, 4 ears had dysplasia of the long foot of the incus, and 1 ear had stapes ectopic. The superior structure of stirrup was absent in 3 ears, of which 1 was atresia of vestibular window and 2 of 31 ears of superior structure of stirrup were treated by operation. The coincidence rate between preoperative virtual CT otoscope observation and exploratory exploration of ossicular chain was 98.67. Conclusion: virtual CT otoscope clearly shows the abnormal structure of ossicular chain in congenital deformity of ear, which provides reliable imaging basis for definite diagnosis and establishment of operative method before operation.
【學(xué)位授予單位】：暨南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：R764

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本文編號(hào)：2173938