Computed tomography and magnetic resonance imaging of pathologic conditions of the middle ear
Computed tomography and magnetic resonance imaging of pathologic conditions of the middle ear
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DOI：
10.1016/s0720-048x(01)00376-x
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发表时间：
2001-11-01
影响因子：
3.3
通讯作者：
Battaglia, G
中科院分区：
文献类型：
--
作者：
Maroldi, R;Farina, D;Battaglia, G
计算机断层扫描（CT）是一种很好的技术，可以显示中车薄而复杂的骨性结构的微小异常。因此，它是研究或传导性听力损失（CHL）中选择的模态。然而，并不是每一个抱怨CHL的患者都需要CT检查。事实上，确定的适应症包括复杂的情况，如急性和慢性耳乳突炎的并发症，慢性耳乳突炎或假体装置定位的术后耳，以及先天性或血管异常的评估。特别是，高分辨率CT可以准确显示与中耳炎相关的骨质侵蚀的范围。相反，尽管CT通常可以检测到通过鼓膜或颞骨后壁的瘘管，但磁共振（MR）可以更好地评估脑膜和静脉的实际受累。MR也适用于怀疑有并发症的微小病变延伸到内耳或向乙状窦或颈静脉延伸的情况。由于两种技术的结合数据提供了重要信息，因此，中耳新生儿的诊断需要使用这两种技术。手术计划中最重要的数据涉及薄骨结构的破坏以及病变与硬脑膜和周围血管的关系。DSA和介入血管技术在副神经节瘤扩展到中耳的术前检查和栓塞中起着重要作用。(C)Elsevier Science爱尔兰有限公司出版。
Computed tomography (CT) is an excellent technique for demonstrating even small abnormalities of the thin and complex bony structures of the middle car. For this reason, it is the modality of choice in the Study or conductive hearing loss (CHL). However, not every patient complaining of CHL requires a CT study. In fact, established indications encompass complex conditions, such as the complications of acute and chronic otomastoiditis, the postoperative ear in chronic otomastoiditis or in the localization of prosthetic devices, and the assessment of congenital or vascular anomalies. Particularly, the precise extent of bone erosion associated with cholesteatoma is correctly demonstrated by high resolution CT. Conversely, although fistulization through the tegmen tympani or the posterior wall of temporal bone is usually detectable by CT, the actual involvement of meninges and veins are better assessed by magnetic resonance (MR). MR is also indicated when complicated in flit minatory lesions are suspected to extend into the inner ear or towards the sigmoid sinus or jugular vein. Neoplasms arising from or extending into the middle ear require the use of both techniques as their combined data provide essential information. Most important data for surgical planning concern the destruction of thin bony structures and the relationships of the lesion with the dura and Surrounding vessels. DSA and interventional vascular techniques maintain an essential role in the presurgical work-Up and embolization of paragangliomas extended into the middle ear. (C) 2001 Published by Elsevier Science Ireland Ltd.