扩散加权成像在鼻咽癌诊断和治疗中的应用

Application of diffusion weighted imaging in the diagnosis and treatment of nasopharyngeal carcinoma

早期疗效的判断对鼻咽癌的治疗及患者的预后有重要意义。磁共振扩散加权成像（DWI）作为一种快速成像技术，它以表观扩散系数（ADC）定量分析组织水分子弥散程度的变化，从而准确诊断鼻咽癌微小病变、评价放疗早期疗效及观察预后。随着MRI及数据分析技术的不断完善和进步，DWI在鼻咽癌的诊断和治疗中显示出更加广阔的应用前景。

The judgment of early curative effect is important to the treatment of nasopharyngeal carcino- ma and the prognosis of the patients. As a rapid imaging technique, magnetic resonance diffusion weighted ima- ging （DWI） is used to quantitatively analyze the changes of water molecules in the tissue by means of apparent diffusion coefficient （ADC）, so as to diagnose the small lesions of nasopharyngeal carcinoma accurately, eva- luate the early curative effect and observe the prognosis. With the continuous improvement and progress of MRI and data analysis technology, DWI in the diagnosis and treatment of nasopharyngeal carcinoma shows a broader application prospect.