扩散张量成像(DTI)技术在脑部恶性肿瘤中的应用价值  

Application value of diffusion tensor imaging (DTI) in brain malignant tumors

作　　者：陈康胤 陈镜聪[1] 马伟琼[1] 黄春榆[1] Chen Kangyin;Chen Jingcong;Ma Weiqiong;Huang Chunyu(Department of Radiology,Huizhou Municipal Central Hospital,Huizhou 516001,China)

机构地区：[1]惠州市中心人民医院放射科,516001

出　　处：《国际医药卫生导报》2019年第18期3080-3082,共3页International Medicine and Health Guidance News

摘　　要：目的分析脑部恶性肿瘤诊断中采用扩散张量成像(DTI)技术的临床价值。方法回顾性分析本院2015年3月至2019年2月期间收治的57例脑部恶性肿瘤患者(均通过手术及病理检查确诊)临床资料,所有患者均采用常规头颅平扫、扩散张量成像(DTI)扫描以及增强后三维成像扫描,通过后处理重建对肿瘤瘤周白质区、水肿区以及实质区的白质纤维束走行进行测量,分析脑部恶性肿瘤情况。结果57例患者中6例患者可观察到颞叶I^II级低级别胶质瘤的脑白质纤维偏移、受压,纤维束部分中断;34例患者属于额顶叶、枕顶叶转移瘤。恶性脑肿瘤的瘤周白质、周围水肿区的纤维束均中断,被破坏,且其破坏率和脑部恶性肿瘤恶变程度呈正相关性。结论脑部恶性肿瘤诊断及鉴别中应用DTI技术具有较高的临床价值,可为临床判定脑肿瘤恶性程度提供一定的参考依据。Objective To analyze the clinical value of diffusion tensor imaging (DTI) in the diagnosis of malignant tumors of the brain. Methods A retrospective analysis on 57 patients with brain malignant tumors (all confirmed by surgery and pathological examination) in our hospital from March 2015 to February 2019 was carried out. All patients were treated with conventional head scan, diffusion tensor imaging (DTI), and enhanced 3D imaging scan. The white matter fiber bundles of the white matter area, edema area, and parenchymal area of the tumor were measured by post-processing reconstruction, and the brain malignant tumors were analyzed. Results Among the 57 patients, 6 patients with grade I-II glioma had white matter fiber shift and compression, and the fiber bundle was partially interrupted. 34 patients belonged to the frontal parietal lobe and occipital lobe metastatic tumors. The fiber bundles of the peritumoral white matter and surrounding edema of malignant brain tumors were all interrupted and destroyed, and the destruction rate was positively correlated with the degree of malignant transformation of brain malignant tumors. Conclusion The application of DTI technology has high clinical value in the diagnosis and identification of malignant tumors of the brain and can provide a reference for the clinical determination of the malignant degree of brain tumors.

关 键 词：脑部 恶性肿瘤 扩散张量成像技术 应用价值 

分 类 号：R445.2[医药卫生—影像医学与核医学] R739.41[医药卫生—诊断学]