...微小的病变；合理使用窗技术，有利于 显示腹腔内少量游离气体 在大多数情况下，还能判断病变的性质 (lesion characterization) (ultrasonography) Cheap and easy to perform 可从不同切面探查病灶，有利于准确判断病变的 起源和空间位置 急腹症时常常...
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Although ct is the standard initial imaging modality, MRI can be helpful if there are questions as to the content of the lesion or a need for further anatomical characterization.
虽然是标准的CT初步成像方式，MRI能有所帮助，如果有问题的内容病变或需要进一步解剖表征。
Conclusion MRI findings of cerebella astrocytoma are characteristic and contrast-enhanced scan was helpful in detection of the lesion and characterization of the disease.
结论小脑星形细胞瘤具有特征性，增强扫描有助于病灶检出和定性诊断。
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