CAJ | 학술논문

目的：分析各种先天性耳部畸形的螺旋CT三维重建最佳重建平面的选择。方法：通过对40例48耳先天性耳部畸形患者行螺旋CT容积扫描，多平面重建观察其各种畸形情况。结果：横轴面诊断鼓室窦过深4耳、外耳道闭锁42耳、外耳道狭窄4耳、颈内动脉异位2耳；冠状面诊断面神经水平段低位26耳、颅中窝低位6耳、颞下颌窝及髁突畸形22耳；前斜冠状面观察测量闭锁板24耳、诊断卵圆窗缺如4耳；后斜冠状面诊断下颌窝及髁突高位6耳；矢状面诊断颈静脉球高位12耳；内斜矢状面观察面神经裸露走行于鼓室内24耳、锤砧关节融合12耳及锤骨发育不良30耳。结论：先天性耳部畸形种类多，诊断时需要多方位观察、有针对性调整特定的重建平面，以避免漏诊、误诊的发生。
목적：분석각충선천성이부기형적라선CT삼유중건최가중건평면적선택。방법：통과대40례48이선천성이부기형환자행라선CT용적소묘，다평면중건관찰기각충기형정황。결과：횡축면진단고실두과심4이、외이도폐쇄42이、외이도협착4이、경내동맥이위2이；관상면진단면신경수평단저위26이、로중와저위6이、섭하합와급과돌기형22이；전사관상면관찰측량폐쇄판24이、진단란원창결여4이；후사관상면진단하합와급과돌고위6이；시상면진단경정맥구고위12이；내사시상면관찰면신경라로주행우고실내24이、추침관절융합12이급추골발육불량30이。결론：선천성이부기형충류다，진단시수요다방위관찰、유침대성조정특정적중건평면，이피면루진、오진적발생。
Objective: To analyze and obtain the best reconstruction plane of diverse congenital ear deformities on CT image. Methods: 40 patients with 48 congenital deformed ears were examined with MSCT and performed with MPR reconstruction. Results: 4 ears with large sinus tympani ,42 ears with external aural atresia, 4 ears with external auditory canal stenosis, 2 ears with ectopic internal carotid artery were diagnosed on transverse plane. 26 ears with low horizontal segment of the facial nerve, 6 ears with middle cranial fossainferior dislocation, 22 ears with condglar process and mandibular fossa malformation were diagnosed on coronal plane. Bony atretic plate of 24 ears were measured and 4 ears with oval window absence were diagnosed on anterior oblique coronal plane. 6 ears with high condglar process and mandibular fossa were diagnosed on posterior oblique coronal plane. 12 ears with highriding jugular bulb were diagnosed on saggital plane. 24 ears with dehiscent facial nerve, 12 ears with fused malleoincudal articulation, 30 ears with malleus dysplasia were diagnosed on interior oblique saggital plane. Conclusion: Congenital ear deformities has many kinds. Those must be observed on different and targeted planes in order to avoid missed diagnosis and misdia~nosis.