儿童髓母细胞瘤的MRI和CT诊断

目的 分析儿童髓母细胞瘤的MRI和CT影像学表现，提高诊断该病的准确性。材料和方法 收集经手术病理证实的髓母细胞瘤14例，均行MRI和CT检查，其中男11例，女3例，年龄为3-12岁，结果 髓母细胞瘤好发于男性儿童，常见于小脑蚓部，MRI扫描T1加权像呈等或稍低信号，T2加权像呈等或略高于脑灰质信号，增强后呈中等至明显强化，CT平扫为等或稍高密度影，注药后呈轻至中度强化，结论 对儿童髓母细胞瘤定位和定性，MRI明显优于CT。

MRI and CT Diagnosis of Children Medulloblastoma

Objective To analyze the MRI and CT manifestations of children medulloblastoma and improve the accuracy of diagnosis. Methods In 14 cases of medulloblastoma proved by surgery and pathology, the MRI and CT scanning were performed. There were 11 males and 3 females, the children ranged in age from 3 to 12 years old. Results Medulloblastoma occurred in male children predominantly, most frequently involving the inferior vermis.On MRI scanning, they appeared iso-intensity or slightly low intensity on T1-weighted image, and iso-intensity or slightly high intensity on T2-weight imagine from moderate to marked enhancement after contrast injection. On CT scanning, the tumors were iso-intensity or slightly high intensity from mild to moderate enhencement after contrast administration. Conclusions MRI was superior to CT in determining the location and quality of medulloblastoma.