磁共振成像
磁共振成像
자공진성상
CHINESE JOURNAL OF MAGNETIC RESONANCE IMAGING
2015年
4期
283-288
,共6页
三阴性乳腺癌%磁共振成像%扩散加权成像
三陰性乳腺癌%磁共振成像%擴散加權成像
삼음성유선암%자공진성상%확산가권성상
Triple-negative breast cancer%Magnetic resonance imaging%Diffusion weighted imaging
目的:探讨三阴性乳腺癌MRI动态增强及DWI影像学特征性表现,为临床术前评估提供依据。材料与方法选取2012年8月-2014年6月间术前接受MRI检查并经手术及病理证实的乳腺癌251例,其中三阴性乳腺癌70例,非三阴性乳腺癌[ER(+)/PR(+)/HER-2(-)型]181例。比较两种病理亚型乳腺癌的MRI动态增强及DWI影像学表现并进行相应统计学分析。结果与ER(+)/PR(+)/HER-2(-)型乳腺癌比较,三阴性乳腺癌表现多为单一病灶(P=0.018),肿瘤较大(P=0.002),组织学分级较高(P<0.001);MRI动态增强病灶多表现为肿块样强化(P=0.026),分叶状(P<0.001)、边缘光滑(P=0.005)、环形强化(P<0.001)及T2WI上病变中心呈高信号(P<0.001)为其特征性表现。DWI三阴性乳腺癌的ADC均值(1.034±0.37)×10-3 mm2/s高于ER(+)/PR(+)/HER-2(-)型乳腺癌(P=0.031)。结论对乳腺癌病人术前进行MRI检查,有助于三阴性乳腺癌与ER(+)/PR(+)/HER-2(-)型乳腺癌鉴别,可成为乳腺癌术前评估主要无创检查方法之一,为临床治疗方案确定提供依据。
目的:探討三陰性乳腺癌MRI動態增彊及DWI影像學特徵性錶現,為臨床術前評估提供依據。材料與方法選取2012年8月-2014年6月間術前接受MRI檢查併經手術及病理證實的乳腺癌251例,其中三陰性乳腺癌70例,非三陰性乳腺癌[ER(+)/PR(+)/HER-2(-)型]181例。比較兩種病理亞型乳腺癌的MRI動態增彊及DWI影像學錶現併進行相應統計學分析。結果與ER(+)/PR(+)/HER-2(-)型乳腺癌比較,三陰性乳腺癌錶現多為單一病竈(P=0.018),腫瘤較大(P=0.002),組織學分級較高(P<0.001);MRI動態增彊病竈多錶現為腫塊樣彊化(P=0.026),分葉狀(P<0.001)、邊緣光滑(P=0.005)、環形彊化(P<0.001)及T2WI上病變中心呈高信號(P<0.001)為其特徵性錶現。DWI三陰性乳腺癌的ADC均值(1.034±0.37)×10-3 mm2/s高于ER(+)/PR(+)/HER-2(-)型乳腺癌(P=0.031)。結論對乳腺癌病人術前進行MRI檢查,有助于三陰性乳腺癌與ER(+)/PR(+)/HER-2(-)型乳腺癌鑒彆,可成為乳腺癌術前評估主要無創檢查方法之一,為臨床治療方案確定提供依據。
목적:탐토삼음성유선암MRI동태증강급DWI영상학특정성표현,위림상술전평고제공의거。재료여방법선취2012년8월-2014년6월간술전접수MRI검사병경수술급병리증실적유선암251례,기중삼음성유선암70례,비삼음성유선암[ER(+)/PR(+)/HER-2(-)형]181례。비교량충병리아형유선암적MRI동태증강급DWI영상학표현병진행상응통계학분석。결과여ER(+)/PR(+)/HER-2(-)형유선암비교,삼음성유선암표현다위단일병조(P=0.018),종류교대(P=0.002),조직학분급교고(P<0.001);MRI동태증강병조다표현위종괴양강화(P=0.026),분협상(P<0.001)、변연광활(P=0.005)、배형강화(P<0.001)급T2WI상병변중심정고신호(P<0.001)위기특정성표현。DWI삼음성유선암적ADC균치(1.034±0.37)×10-3 mm2/s고우ER(+)/PR(+)/HER-2(-)형유선암(P=0.031)。결론대유선암병인술전진행MRI검사,유조우삼음성유선암여ER(+)/PR(+)/HER-2(-)형유선암감별,가성위유선암술전평고주요무창검사방법지일,위림상치료방안학정제공의거。
Objective: To invstigate the specific findings of triple-negative breast cancer (TNBC) with dynamic contrast-enhanced MRI and DWI, and to provide the reference for presurgical evaluation. Materials and Methods:Two hundred and iffty-one patients with breast cancer who underwent operation from Augest, 2012 to June, 2014 were included. Seventy patients were TNBC, while 181 patients were ER(+)/PR(+)/HER-2(-) cancer. Comparing the dynamic contrast-enhanced breast MRI and DWI imaging findings of these two subtypes and making the appropriate statistical analysis. Results:Compared to ER(+)/PR(+)/HER-2(-) tumors, TNBC cancers were presented with single (P=0.018), larger tumor size (P=0.002), higher histologic grade (P<0.001). MRI features associated with TNBC tumors included mass enhancement (P=0.026), lobulated (P<0.001), smooth margins (P=0.005), ring-enhancement (P<0.001) and areas of intratumoral high T2 signal intensity (P<0.001). Moreover, the TNBC appeared higher ADC value (P=0.031). Conclusions:Preoperative MRI is helpful in differentiating TNBC and contrast enhanced ER (+) /PR (+) /HER-2 (-) cancer. It would be one of the most important noninvasive examination methods to preoperatively evaluate the breast cancer, and provide imaging basis for clinical treatment.