常规MRI联合最小ADC值对腮腺淋巴结病变诊断及鉴别诊断的价值

The Value of Conventional MR Combined with ADCmin in Diagnosing and Differential Diagnosing Parotid Lymphocystis Disease

目的探讨常规MRI联合最小ADC值对腮腺淋巴结病变诊断及鉴别诊断的价值。方法回顾性分析经病理组织学证实的腮腺淋巴结病变21例(103个病灶)及非淋巴结病变14例(多发,共57个病灶)的MRI特点,同时测量并比较最小ADC值。结果腮腺淋巴结病变组信号均匀一致发生率(100%)明显高于非淋巴结病变组(21%,P<0.05);淋巴结病变组伴颈部多发淋巴结增大发生率(100%)明显高于非淋巴结病变组(14%,P<0.05)。淋巴结病变组最小ADC值低于非淋巴结病变组,分别为(0.62±0.12)×10^(-3)mm^2/s、(1.07±0.15)×10^(-3)mm^2/s,两者间差异有统计学意义(P<0.05)。结论常规MRI联合最小ADC值有助于腮腺淋巴结病变的诊断及鉴别诊断。

Objective To explore the value of conventional MR combined with ADCmin in diagnosis and differential diagnosis of parotid lymphocystis disease.Methode The MRI characteristics of 21 patients(103 lesion)of parotid lymphadenopathy and 14 patients(multiple,57 lesion)of non-lymphadenopathy with pathologically confirmed were analyzed retrospectively.In addition,the minimum ADC value of lesions were measured and compared.Results Incidence of homogeneous signal in parotid lymphadenopathy group(100%)were obviously higher than in non-lymphadenopathy group(21%,P<0.05).Incidence of cervical and submandibular lymph nodes enlargement in parotid lymphadenopathy group(100%)were obviously higher than in non-lymphadenopathy group(14%,P<0.05).The minimum ADC Value of lymphadenopathy was lower than non-lymphadenopathy,respectively(0.62±0.12)×10-3mm2/s,(1.07±0.15)×10-3mm2/s,the difference was statistically significant(P<0.05).Conclusion Conventional MR combined with minimum ADC value avail the diagnosis and differential diagnosis of parotid lymphocystis disease.