目的 :探讨DWI在女性附件囊性肿块中的诊断价值。方法 :回顾性分析经手术病理证实的72例女性附件囊性肿块患者的常规MRI表现,测量其DWI(b=800 s/mm2)的信号强度值及ADC值,并计算相对信号强度值(RSI)和对比噪声比(CNR)。将良性囊性成分分成血液、脂质、脓液、黏液和浆液5组,恶性囊性成分分成浆液、黏液2组,并对各组的ADC值、RSI、CNR进行统计学分析。结果:良性病变5组不同囊性成分的ADC值、RSI及CNR组间差异有统计学意义(P均<0.05)。良恶性病变之间浆液的ADC值、RSI、CNR差异均无统计学意义(P均>0.05),黏液的ADC值、RSI、CNR差异均无统计学意义(均P>0.05)。不同良性囊性肿块在常规MRI和DWI的表现各异。结论:通过对女性附件囊性肿块的ADC值、RSI及CNR进行定量分析,能为其定性诊断提供一定的依据;结合常规MRI,DWI有助于囊性成分的鉴别诊断。 Objective: To investigate the diagnostic value of DWI in cystic mass of female attachment. Methods: The routine MRI findings of 72 cases of cystic masses with accessory attachment were retrospectively analyzed. The signal intensity and ADC value of DWI (b = 800 s / mm2) were measured and the relative signal intensity (RSI ) And contrast noise ratio (CNR). The benign cystic components were divided into five groups: blood, lipid, pus, mucus and serous. The malignant cystic components were divided into two groups: serous and mucus. The ADC value, RSI and CNR of each group were statistically analyzed. Results: There were significant differences in ADC value, RSI and CNR between different cystic components in benign lesions (P <0.05). There was no significant difference in ADC value, RSI, CNR between the benign and malignant lesions (P> 0.05), and there was no significant difference in mucus ADC value, RSI and CNR between the two groups (all P> 0.05). Different benign cystic masses perform differently on conventional MRI and DWI. Conclusion: Quantitative analysis of ADC value, RSI and CNR of cystic mass in female appendages can provide a basis for its qualitative diagnosis. Combined with conventional MRI and DWI, it is helpful to the differential diagnosis of cystic components.