当前位置: 首页 > 详情页

MRI features of intramedullary spinal cord ependymomas

文献详情

资源类型:

收录情况: ◇ SCIE

机构: [1]Beijing Neurosurg Inst, Beijing, Peoples R China; [2]Beijing Tiantan Hosp, Dept Neuroradiol, Beijing, Peoples R China
出处:
ISSN:

关键词: MRI intramedullary ependymomas spinal cord

摘要:
Background and Purpose. To assess the magnetic resonance (MR) imaging characteristics of spinal intramedullary ependymomas. Methods. MR images were obtained from 60 patients with spinal intramedullary ependymomas. All patients were treated surgically, and pathological diagnoses were confirmed. MR images of ependymomas and associated cysts were correlated with surgical findings. Results. Among 60 cases of intramedullary ependymomas, 39 were cervical and 11 thoracic, and 10 were located at the conus medullaris and filum terminale. The lesions measured 1 to 10 vertebral segments in length along the neuraxis, with a mean length of 3.7 segments. All tumors had slightly hyperintense signals on T2-weighted MR images. Clear tumor margins were seen in 77% of patients; 75% had uniform contrast enhancement. Rostral and caudal cysts were seen in 90% of all patients; all cysts were hypointense on T1-weighted images and hyperintense on T2-weighted images. The rostral cysts were 1 to 5 segments in length and caudal cysts 2 to 10 segments in length. Conclusion. Ependymomas occur most often at the upper cord rather than in the conus medullaris and filum terminale. Of the cervical and thoracic ependymomas, most were cellular or epithelial types. Papillary ependymomas occurred exclusively in the conus medullaris and filum terminale. Rostral and caudal cysts are frequently associated with intramedullary ependymomas. Clear tumor margins, more uniform enhancement, and central locations can help differentiate ependymomas from other intramedullary spinal cord tumors.

语种:
被引次数:
WOS:
PubmedID:
中科院(CAS)分区:
出版当年[2002]版:
最新[2023]版:
大类 | 4 区 医学
小类 | 4 区 临床神经病学 4 区 神经成像 4 区 核医学
JCR分区:
出版当年[2001]版:
Q3 NEUROIMAGING Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Q3 CLINICAL NEUROLOGY
最新[2023]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Q3 CLINICAL NEUROLOGY Q3 NEUROIMAGING

影响因子: 最新[2023版] 最新五年平均 出版当年[2001版] 出版当年五年平均 出版前一年[2000版] 出版后一年[2002版]

第一作者:
第一作者机构: [1]Beijing Neurosurg Inst, Beijing, Peoples R China; [2]Beijing Tiantan Hosp, Dept Neuroradiol, Beijing, Peoples R China
通讯作者:
通讯机构: [1]Beijing Neurosurg Inst, Beijing, Peoples R China; [2]Beijing Tiantan Hosp, Dept Neuroradiol, Beijing, Peoples R China
推荐引用方式(GB/T 7714):
APA:
MLA:

资源点击量:16409 今日访问量:0 总访问量:869 更新日期:2025-01-01 建议使用谷歌、火狐浏览器 常见问题

版权所有©2020 首都医科大学宣武医院 技术支持:重庆聚合科技有限公司 地址:北京市西城区长椿街45号宣武医院