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目的评价1.5超导磁共振弥散成像(DWI)序列在肺部良恶性结节或肿块诊断、治疗后评价中的应用价值。方法对24个肺部疾病患者进行DWI检查,分析肺癌、肺良性病变、肺癌放疗后肿块复发、放射性肺炎ADC值差异。结果良性病变与肺恶性病变在分子扩散方面存在差异,DWI信号差异及ADC值是鉴别肺部良、恶性病变的有效数据。结论 DWI对肺癌、肺良性病变、肺癌放疗后肿块复发、放射性肺炎诊断具有价值,比较常规磁共振检查更有优势。
Objective To evaluate the value of 1.5 DWI in the diagnosis and postoperative evaluation of benign or malignant pulmonary nodules. Methods Twenty-four patients with lung diseases were examined by DWI to analyze the difference of ADC value of lung cancer, benign lung disease, tumor recurrence after radiotherapy and radiation pneumonitis. Results There was a difference in molecular diffusion between benign and malignant pulmonary lesions. DWI signal difference and ADC value were effective data to distinguish between benign and malignant pulmonary lesions. Conclusions DWI is valuable in the diagnosis of lung cancer, benign lung disease, recurrence of lung cancer after radiotherapy, and the diagnosis of radiation pneumonitis. Compared with conventional magnetic resonance imaging, DWI has more advantages.