摘要
目的探讨放疗前后脑内肿瘤的ＭＲＩ变化，以客观评价放疗的疗效。方法对５１例脑内肿瘤（１０例松果体区肿瘤，１９例脑转移瘤和２２例胶质瘤）放疗前后进行ＭＲ平扫和增强扫描，比较放疗前后肿瘤大小、占位效应、瘤周水肿及肿瘤内部改变。结果５１例肿瘤放疗后症状改善４２例（占８２．５％），９例（１７．６％）症状加重，而ＭＲＩ示肿瘤缩小有３７例（７２．５％），其中６例完全消失，９例肿瘤大小不变，５例增大；占位效应缩小或消失３９例（占７６．５％）；瘤周水肿缩小或消失有４０例（７８．４％）。４例临床症状加重而ＭＲＩ表现为放射性脑病。结论ＭＲＩ为一种能客观反映放疗前后脑肿瘤变化的无创性的敏感方法。
sobjective To evaluate the effects of radiotherapy
in patients with intracranial tumor by MRI before and after therapy.ZMethods We compared the
MRI change of tumor size,mass effcet,edema,and intracranial structure before and after
radiotherapy in 51 patients with intracranial tumor. Results Clinically there were 42 patients (82.
5%) showed improvement after radiotherapy,the rest with no marked changes.On MIR,there
were 37 patients (72.5%) showed reduction of tumor size,5 patients (9.8%) with increase in
tumor size,no change in 9 patients (17.7%).The mass effect and edema were resolved or
decreased respectively in 39 (76.5%) and 40 (78%) patients.In addition,4 patients had
improvement of clinical condition,the tumor size increased on MRI,in other 4 patients their
clinical condition were worse,but MRI showed a radiological encephalopathy. ConclusionMRI
can objectively reflect the change of intracranial tumor before and after radiotherapy.It is a
noninvasive and sensitive method for evaluation of the cliance imagingnical state.\;
出处
《实用肿瘤杂志》
CAS
北大核心
1999年第3期145-147,共3页
Journal of Practical Oncology
关键词
脑肿瘤
诊断
放射疗法
NMR
成像
brain neoplasms/diagbrain neoplasms/thermagnetic reson
