射频消融治疗肝脏恶性肿瘤急性热损伤的MRI表现及疗效判定-论文.pdf

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1、中国介入影像与治疗学2013年第10卷第12期ChinJIntervImagingTher，2013，Vol10，No12·专论·MRIfindingsofacutethermaldamageandeffectassessmentafterradiofrequencyablationofmalignanthepatictumorsCHENJin，CHENQun—lin，LJNZheng—yu，LIYue—ming，DENGXiu—fen(DepartmentofImaging，theFirstAffiliatedHo

2、spitalofFujianMedicalUniversity，Fuzhou350005，China)[Abstract]0bjectiveToexploreMRIfeaturesofacutethermaldamageandassesseffectofradiofrequencyablation(RFA)formalignanthepatictumors．MethodsAtota1of158patientswith266malignantliverlesionsunderwentMRIguidedRFA，andMR

3、IfeaturesimmediatelyafterRFAwereretrospectivelyanalyzed．ResultsAfterRFA，hypo—intensitybothonT2WIandT1W1wereobservedin147primaryhepaticcarcinomalesionsand59hepaticmetastasislesions．slightlyhyper-intensityonT2WIandhypo—intensityOnT1W1werefoundin2primaryhepaticcar

4、cinomasand55livermetastases．whilehypo—intensityonT2WIandhyper—intensityonT1W1werefoundin3primaryhepaticcarcinoma．Allperitumoralab—lationzonedemonstratedhyper-intensityonT1WIandhypo—intensitywithathinrimofhighsignalintensityonT2WI．To—tally151primaryhepaticand106

5、hepaticmetastasislesions’werecompletelysurroundedbyperitumoralablationzone。and1primaryhepaticcarcinomaand8livermetastaseswerenotcompletelysurrounded．ConclusionMRIfeaturesofacutethermaldamageimmediatelyafterRFAformalignanthepatictumorshavecharacteristics．whichmi

6、ghtbeusedtoevaluatethecurativeeffectofRFAexactlyandreliably．[Keywords~Liverneoplasms；Catheterablation；Magneticresonanceimaging；Thermaldamage射频消融治疗肝脏恶性肿瘤急性热损伤的MRI表现及疗效判定陈锦，陈群林，林征宇，李跃明，邓秀芬(福建医科大学附属第一医院影像科，福建福州350005)[摘要]目的探讨肝脏恶性肿瘤射频消融后急性热损伤的MRI表现及疗效判定。方法回顾性分析MRI引

7、导下158例共266个肝脏恶性肿瘤病灶的射频消融术后即刻MRI表现。结果147个原发性肝癌及59个肝转移癌病灶消融后表现为T2wI低信号、T1wI低信号；2个原发性肝癌及55个肝转移癌病灶消融后表现为T2WI呈稍高信号，T1wI低信号；3个原发性肝癌消融后T2WI呈低信号，而T1WI呈高信号。瘤周消融带均呈短T1短T2信号，周边见薄环状长T2-信号环绕。151个原发性肝癌及106个转移癌病灶被瘤周消融带完全包绕，1个原发性肝癌及8个肝转移癌病灶未完全被瘤周消融带包绕。结论肝脏恶性肿瘤射频消融后急性热损伤的即刻MRI表

8、现具有特征性，据以评价疗效确切、可靠。[关键词]肝肿瘤；导管消融；磁共振成像；热损伤[中围分类号]R445．2；R816[文献标识码]A[文章编号]1672—8475(2013)12—0713—04[基金项目]福建省自然科学基金面上项目(2012J01337)、福建省科技计划重点项目(2011YO021)。[作者简介]陈锦(1983一)，男，福