| Molun Shen,Ling Zhu,Hongbo Yu,Lei Zhang,Xudong Wang. Comparison of computed tomography and magnetic resonance imaging for the detection of mandibular condylar osteochondroma. Oncol Transl Med, 2018, 4: 108-115. |
| 髁突骨软骨瘤的CT与MRI诊断价值比较 |
| Comparison of computed tomography and magnetic resonance imaging for the detection of mandibular condylar osteochondroma |
| Received:April 14, 2018 Revised:June 24, 2018 |
| DOI：10.1007/s10330-018-0272-2 |
| 中文关键词: 髁突；骨软骨瘤；计算机断层扫描；磁共振成像 |
| 英文关键词: mandibular condyle; osteochondroma; computed tomography (CT); magnetic resonance imaging (MRI) |
| 基金项目:上海交通大学医学院“高峰高原”计划“研究型医师”项目（20152225）；上海市市级医院新兴前沿技术联合攻关项目（SHDC12013103） |
| Author Name | Affiliation | E-mail | | Molun Shen | Hefei Stomatological Hospital | 51932808@qq.com | | Ling Zhu | Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine | | | Hongbo Yu | Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine | | | Lei Zhang | Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine | | | Xudong Wang* | Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine | xudongwang70@hotmail.com |
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| 中文摘要: |
| 目的：比较CT和MRI对下颌骨髁突骨软骨瘤各种特征的检测价值。方法：回顾分析33例单侧髁突骨软骨瘤患者的CT和MRI表现，观察肿瘤形态、部位、与髁突的连续性、软骨帽、软骨膜结构以及髁突、颞骨关节面、TMJ关节盘、关节腔、翼外肌等软硬组织改变情况。采用SPSS17.0软件包对数据进行整理和统计分析，配对样本率的比较采用McNemar检验，以P＜0.05 为差异有统计学意义。结果：33例髁突骨软骨瘤中，11例弥漫型，10例广基型，12例带蒂型。CT和MRI均可显示髁突骨软骨瘤骨皮质和骨松质与髁突的连续性。CT和MRI对颞骨关节面改建、髁突脱位及假关节形成的检出率相同。MRI对软骨帽和软骨膜的检出率均高于CT（P<0.05）。MRI显示4例患侧和6例对侧TMJ关节盘移位以及20例患侧和14例对侧关节腔积液。结论：三维重建CT能够直观的显示髁突骨软骨瘤的形态和空间位置。MRI在检出髁突骨软骨瘤的软骨帽和软骨膜结构以及TMJ和毗邻软组织改变方面优于CT。 |
| 英文摘要: |
| Objective The purpose of this study was to compare computed tomography (CT) and magnetic
resonance imaging (MRI) for the detection of mandibular condylar osteochondroma.
Methods Preoperative CT and MRI of 33 patients with unilateral condylar osteochondroma were
reviewed. The morphology, location, continuity with the parent bone, cartilage cap, perichondrium of
tumors, and changes in soft and hard tissues adjacent to the lesions were investigated by two reviewers.
Data were analyzed using McNemar test. A P value < 0.05 was considered significant.
Results Among the 33 condylar osteochondromas, 11 were of the diffuse type, 10 were of the sessile
type, and 12 were of the pedunculated type. Continuity with the cortex and marrow of the host condyle was
observed on both CT and MRI. Both modalities had identical detection rates of surface reconstruction of the
temporal bone joint, condylar dislocation, and pseudarthrosis formation. However, MRI showed significantly
higher detection rates of the cartilage cap and perichondrium than CT (P < 0.05). Furthermore, MRI showed
ipsilateral and contralateral temporo-mandibular joint (TMJ) disc displacement in 4 cases and 6 cases,
respectively, and ipsilateral and contralateral TMJ effusion in 20 cases and 14 cases, respectively.
Conclusion CT can intuitively display the morphology and spatial location of condylar osteochondromas
through three-dimensional reconstruction. MRI may be superior to CT in the detection of cartilage cap,
perichondrium of the condylar osteochondroma, and changes in the TMJ and adjacent soft tissues. |
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