MRI与CT对颅颈移行区肿瘤的诊断价值评估：附16例分析

本文旨在评价ＭＲＩ与ＣＴ对颅颈移行区病变的诊断价值，共１６例分析，包括斜坡脊索瘤５例，小脑下蚓部肿瘤２１例，延髓肿瘤４例，上颈段脊髓肿瘤５例。患者均作ＭＲＩ平扫，采用ＳＥ系列，Ｔ１Ｗ（ＴＲ５００／ＴＥ３０ｍｓ）、Ｔ２Ｗ（ＴＲ１８００／ＴＥ９０ｍｓ）和质子密度像（ＴＲ１８００／ＴＥ３０ｍｓ），其中２例作了Ｇｄ－ＤＴＰＡ顺磁增强，所有病例均作了ＣＴ平扫，６例同时还作了增强ＣＴ扫描。通过本组病例分析：１

Diagnostic Value for the Lesions of Craniocervical Junction with MRI and CT(Analysis of 16 Cases)

In order to evaluate the value of MRI and CT for lesions of craniocervical junction, 16 cases were analysed. The cases included: Chordome in clivus(5 cases), tumors in cerebellar inferior vermis(2 cases), tumors in medullar oblongata(4 cases), spinal medullar neoplasia in upper cervical region(5 cases ). The patients were taken the plane MRI, using SE series, the T1W(TR 500/TE 30ms),T2W(TR 1800/TE 90ms) and proton density weighted (TR 1800/TE30ms) were obtained. 2 cases of them also did enhanced imaging with 0.1mmol/kg Gd-DTPA. The patients were taken the plane CT,6 cases of them also did enhanced CT scan. The study showed: 16 cases were found by MRI but CT was only 3 cases, MRI can suppoy more detailed imformation about the features of lesions and can help to determine the range and origin of lesions, The examinational technique for craniocervical junction with MRI are also discussed.