CAJ | 학술논문

目的：探讨多层螺旋 CT(MSCT)多平面重组(MPR)技术在显示儿童内耳畸形中的诊断价值。方法回顾性分析2010年9月—2014年3月中山大学孙逸仙纪念医院223例临床怀疑感音神经性耳聋(SNHL)并接受颞骨 MSCT 检查患儿的临床资料,由1名放射科医师对其中68例发现内耳畸形的患儿及2名内耳结构正常的儿童分别进行内耳骨迷路的 MPR 重建,以正常儿童作对照。68例内耳畸形患儿中,男33例、女35例,年龄9天~16岁、平均4.73岁。由2名高年资医师对68例内耳畸形患者的 MSCT 表现进行观察,并对内耳畸形类型进行分类统计。结果本组68例患儿中,发现单耳畸形5例,双耳畸形63例,共计131耳畸形。 MPR 清晰地显示耳蜗畸形33耳,前庭畸形39耳,半规管畸形42耳,内听道畸形18耳,前庭导水管畸形86耳。68例(131耳)中,8耳(6.1%)为单一结构畸形,123耳(93.9%)为2种或2种以上畸形。结论大部分内耳畸形为2种或2种以上畸形。 MPR 可清晰显示耳蜗、前庭、半规管及前庭导水管的形态及畸形程度,该技术的应用有望提高内耳畸形,尤其是多种结构合并畸形的检出率,从而有利于治疗计划与手术方案的选择与制定。
목적：탐토다층라선 CT(MSCT)다평면중조(MPR)기술재현시인동내이기형중적진단개치。방법회고성분석2010년9월—2014년3월중산대학손일선기념의원223례림상부의감음신경성이롱(SNHL)병접수섭골 MSCT 검사환인적림상자료,유1명방사과의사대기중68례발현내이기형적환인급2명내이결구정상적인동분별진행내이골미로적 MPR 중건,이정상인동작대조。68례내이기형환인중,남33례、녀35례,년령9천~16세、평균4.73세。유2명고년자의사대68례내이기형환자적 MSCT 표현진행관찰,병대내이기형류형진행분류통계。결과본조68례환인중,발현단이기형5례,쌍이기형63례,공계131이기형。 MPR 청석지현시이와기형33이,전정기형39이,반규관기형42이,내은도기형18이,전정도수관기형86이。68례(131이)중,8이(6.1%)위단일결구기형,123이(93.9%)위2충혹2충이상기형。결론대부분내이기형위2충혹2충이상기형。 MPR 가청석현시이와、전정、반규관급전정도수관적형태급기형정도,해기술적응용유망제고내이기형,우기시다충결구합병기형적검출솔,종이유리우치료계화여수술방안적선택여제정。
Objective To investigate the diagnostic value of multiplanar reconstruction (MPR) of multi-slice spiral CT (MSCT) in inner ear malformation of children. Methods Retrospective analysis of 223 children in Sun Yat-Sen Memorial Hospital suspected sensorineural hearing loss (SNHL) clinically was performed between September 2010 and March 2014. All the patients received MSCT scan and 68 patients of inner ear malformation were detected. Deformed bony labyrinths of 68 patients and two cases of normal inner ear were reconstructed with the method of MPR on basis of raw data of MSCT images by one radiologist. In 68 patients of inner ear malformation, there were 33 males and 35 females (aged from 9 days to 16 years). Two senior radiologists evaluated the MSCT manifestations of 68 patients and than statistics analysis of classification for inner ear malformation were performed. Results Sixty-eight patients (5 patients with single ear malformation, 63 patients with bilateral ear malformation, 131 ears in total) with SNHL were clearly shown by MPR images. There were 33 ears of cochlear malformation, 39 ears of vestibular malformation, 42 ears of semicircular canal malformation, 18 ears of internal auditory canal malformation and 86 ears of vestibular aqueduct malformation. In 68 patients (131 ears), single constructive malformation was detected in 8 ears (6. 1% ), two or more kinds of combined malformations were detected in 123 ears (93. 9% ). Conclusions Most of these patients suffered from two or more kinds of combined malformations. MPR images can display the structures of cochlear, vestibule, semicircular canal, internal auditory canal and vestibular aqueduct. The application of this kind of post-processing technology is expected to improve the detection rate of inner ear malformation, especially the various structural malformations, which is conducive to the treatment decisions making and surgical planning.