MRI多模式扫描在乳腺非肿块样强化病灶诊断中的应用

Application of MRI Multi-mode Scanning in the Diagnosis of Breast Non-mass-like Enhancement Lesions

目的分析磁共振成像(MRI)多模式扫描在乳腺非肿块样强化(NMLE)病灶诊断中的应用价值。方法搜集于我院行MRI多模式扫描,且经手术病理证实的136例乳腺NMLE病灶患者进行回顾性分析,记录并比较良恶性病变患者MRI表现的病灶分布特征、内部强化方式、时间-信号曲线(TIC)类型及表观扩散系数(ADC)值大小。结果手术病理证实恶性56例(65.12%),良性30例(34.88%)。节段样分布及环形簇状强化在恶性病灶中出现率较高,而弥漫样分布在良性病灶中发生率较高,恶性病灶组ADC值显著低于良性病灶组,差异均有统计学意义(P<0.05);乳腺NMLE良恶性病变TIC类型比较,差异无统计学意义(P>0.05)。结论通过MRI多模式扫描分析病灶分布特征、内部强化方式及ADC值,可有效鉴别诊断乳腺NMLE病灶的良恶性。

Objective To analyze the application value of magnetic resonance imaging(MRI multi-mode scanning in the diagnosis of breast non-mass-like enhancement(NMLE)lesions.Methods A total of 136 patients with breast NMLE lesions confirmed by surgery pathology who underwent MRI multi-mode scanning in the hospital were retrospectively analyzed.The lesion distribution features,internal enhancement mode,types of timeintensity curve(TIC)and apparent diffusion coefficient(ADC)value of MRI findings in patients with benign and malignant lesions were recorded and compared.Results There were 56 cases(65.12%)with malignant lesions and 30 cases(34.88%)with benign lesions confirmed by surgery pathology.The occurrence rate of segmental distribution and annular cluster-like enhancement were was relatively higher in malignant lesions,while the occurrence rate of diffuse distribution was higher in benign lesions.ADC values in malignant lesion group were significantly lower than those in benign lesion group(P<0.05).There was no significant difference in TIC types between benign and malignant lesions of breast NMLE(P>0.05).Conclusion The analysis of lesion distribution features,internal enhancement types and ADC values by MRI multi-mode scanning can effectively identify the benign and malignant lesions of breast NMLE.