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脑内单发环形强化病变是一类在磁共振增强扫描时呈现环形强化的特征性病变。肿瘤和炎症性病变均可表现为环形强化。临床上高级别胶质瘤、单发脑转移瘤和脑脓肿最常见,且用常规影像学方法常难以鉴别。~1HMRS可检测病变内及周围组织的代谢物浓度,反映病变性质及病理过程,结合影像学征象分析对这三种疾病的鉴别诊断意义重大。
Single intracranial ring enhancement lesions are a group of lesions characterized by ring-shaped enhancement during magnetic resonance contrast-enhanced scanning. Tumors and inflammatory lesions can be manifested as ring enhancement. High grade gliomas, solitary brain metastases and brain abscesses are most common in clinical practice and are often difficult to identify with conventional imaging methods. ~ 1HMRS can detect the concentration of metabolites in and around the lesion, reflecting the nature of the lesion and pathological processes, combined with imaging analysis of the three diseases of great significance in the differential diagnosis.