中华放射学杂志
中華放射學雜誌
중화방사학잡지
Chinese Journal of Radiology
2013年
8期
685-689
,共5页
顾雅佳%许玲辉%张盛箭%彭卫军%毛健%孙非
顧雅佳%許玲輝%張盛箭%彭衛軍%毛健%孫非
고아가%허령휘%장성전%팽위군%모건%손비
乳腺肿瘤%磁共振成像%定位术
乳腺腫瘤%磁共振成像%定位術
유선종류%자공진성상%정위술
Breast neoplasms%Megnetic resonance imaging%Localization
目的 探讨乳腺病变MR导引定位的适应证、技术可行性,以及病灶特点.方法 在1.5 TMR扫描仪上利用特制的活检穿刺定位架,对43例在MRI上显示有可疑病灶,而临床触诊、乳腺X线和超声检查未显示有病灶的患者行MR导引的双钩针定位.观察技术操作可行性和定位准确性,并观察病灶特征,采用Fisher精确检验分析定位病灶的影像特征与病理结果的关系.结果 43例中,37例(86.0%)共38个病灶定位成功.取消定位6例,其中4例病灶在定位时不明显,2例摆位困难.38个病灶呈肿块样强化17个,非肿块样强化20个,混合性病灶1个.恶性肿瘤11个(28.9%).非肿块样强化的内部强化特征在良恶性病变间分布差异有统计学意义(P =0.028),其余形态特征在良、恶性肿瘤间差异无统计学意义(P>0.05).结论 对仅在MRI上显示的可疑病灶,MR导引的定位是一种准确而安全的方法,这些病灶影像上的形态特征在良恶性乳腺肿瘤间的差异不明显.
目的 探討乳腺病變MR導引定位的適應證、技術可行性,以及病竈特點.方法 在1.5 TMR掃描儀上利用特製的活檢穿刺定位架,對43例在MRI上顯示有可疑病竈,而臨床觸診、乳腺X線和超聲檢查未顯示有病竈的患者行MR導引的雙鉤針定位.觀察技術操作可行性和定位準確性,併觀察病竈特徵,採用Fisher精確檢驗分析定位病竈的影像特徵與病理結果的關繫.結果 43例中,37例(86.0%)共38箇病竈定位成功.取消定位6例,其中4例病竈在定位時不明顯,2例襬位睏難.38箇病竈呈腫塊樣彊化17箇,非腫塊樣彊化20箇,混閤性病竈1箇.噁性腫瘤11箇(28.9%).非腫塊樣彊化的內部彊化特徵在良噁性病變間分佈差異有統計學意義(P =0.028),其餘形態特徵在良、噁性腫瘤間差異無統計學意義(P>0.05).結論 對僅在MRI上顯示的可疑病竈,MR導引的定位是一種準確而安全的方法,這些病竈影像上的形態特徵在良噁性乳腺腫瘤間的差異不明顯.
목적 탐토유선병변MR도인정위적괄응증、기술가행성,이급병조특점.방법 재1.5 TMR소묘의상이용특제적활검천자정위가,대43례재MRI상현시유가의병조,이림상촉진、유선X선화초성검사미현시유병조적환자행MR도인적쌍구침정위.관찰기술조작가행성화정위준학성,병관찰병조특정,채용Fisher정학검험분석정위병조적영상특정여병리결과적관계.결과 43례중,37례(86.0%)공38개병조정위성공.취소정위6례,기중4례병조재정위시불명현,2례파위곤난.38개병조정종괴양강화17개,비종괴양강화20개,혼합성병조1개.악성종류11개(28.9%).비종괴양강화적내부강화특정재량악성병변간분포차이유통계학의의(P =0.028),기여형태특정재량、악성종류간차이무통계학의의(P>0.05).결론 대부재MRI상현시적가의병조,MR도인적정위시일충준학이안전적방법,저사병조영상상적형태특정재량악성유선종류간적차이불명현.
Objective To analyze the indications,techniques of MR-guided localization and the imaging features of breast lesion.Methods Hook wire localization was performed in 43 patients whose lesions were only detected by MRI,based on a 1.5 T MR scanner and a special MR biopsy positioning frame.The feasibility of operation and accuracy of localization were explored.Lesion features and pathologic findings were analyzed using Fisher exact test.Results A total of 37 patients (86.0%) with 38 lesions underwent MR-guided localization.Of the 6 patients canceled,the lesions were not obvious in 4 patients,and the positioning was difficult in 2 cases.Of the 38 lesions,17 were masses,20 were non-mass enhancement lesions,and one lesion was undetermined enhancement.There were 11 (28.9%) malignant lesions.The distribution of internal enhancement pattern was different between benign and malignant non-mass lesions (P =0.028),while the other morphological features between benign and malignant were not significantly different (P > 0.05).Conclusions MR-guided localization provides an accurate and safe method for localizing the suspicious lesions on MRI.The morphological findings of these lesions are not characteristic for the differentiation of benign and malignant lesions.