白质纤维束成像鉴别颅内肿瘤良恶性价值探讨

目的：探讨白质纤维束成像技术在鉴别颅内良恶性肿瘤中的价值。方法：分析49例病理证实的颅内肿瘤患者常规MR及弥散张量成像（diffusion tensor imaging，DTI）与白质纤维束成像（diffusion tensor traetography，DTT）表现．分析肿瘤瘤周白质纤维束与肿瘤的关系。结果：无论是良性还是恶性肿瘤，瘤周白质纤维束都可以发生移位，而白质纤维束的破坏主要与肿瘤的恶性程度有关，瘤周白质纤维束的破坏发生率与肿瘤的恶性程度成正比。结论：DTF技术在鉴别颅内肿瘤良恶性方面有重要价值。

To evaluate the value of DTT in differentiation of benign and malignant intracranial tumors

Objective:To evaluate value of DTT in differentiation of benign and malignant intracranial tumors. Methods:Forty-nine patients with histologically confirmed intracranial tumors underwent routine MRI,DTI, DTT and the images were analysed . Assessing the relationship of the tumors and neighoring white matter fibres. Results:There is displacement of white matter fibres around tumors no matter whether they are benign tumors or malignant tumors, while disruption of the white matter fibres is related to malignancy of intracranial tumors. The incidence rate of disruption of neighboring white matter fibres around tumors is proportional to malignancy of intracranial tumors.Conclusion: DTT plays an important role in differentiating benign and malignant intracranial tumors.