甲状腺癌螺旋ct与高频超声影像特征的对照分析-comparative analysis of spiral ct and high frequency ultrasound imaging features of thyroid carcinoma.docxVIP
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甲状腺癌螺旋ct与高频超声影像特征的对照分析-comparative analysis of spiral ct and high frequency ultrasound imaging features of thyroid carcinoma
甲状腺癌螺旋CT与高频超声影像特征的对照研究研究生:杨帆导师:文智副教授摘要目的:分析甲状腺癌的螺旋CT(spiralCT,SCT)与高频超声(high-frequencyultrasound,US)表现,探讨两种检查方法联合应用对甲状腺癌的诊断价值。方法:回顾性分析136例甲状腺癌的高频US和SCT表现,并与手术及病理结果对照。136例均行高频US和SCT检查,CT都对比增强扫描和多平面重建(MPR)来鉴别原发性肿瘤和颈部转移淋巴结。结果:高频US和SCT诊断结果与病理结果进行对比分析。高频US对甲状腺癌的检出率为54.0%(74/136),SCT为76.0%(103/136),P0.05两者有统计学意义;SCT与高频超声联合应用的检出率为83.0%(113/136)。136例甲状腺癌螺旋CT显示率94.9%(129/136),高频US显示率98.5%(134/136)。螺旋CT检出30个病灶微钙化,高频US检出46个病灶微钙化,两者有显著性差异(P0.05)。对于颈部淋巴结转移诊断US的诊断符合率为75.7%,CT为62.5%,两者有显著性差异(P0.05)。结论:高频超声作为甲状腺癌的首选和重要检查方法,螺旋CT在评价甲状腺癌的原发灶、颈部淋巴结转移方面有一定特征性,两种检查方法联合应用,可以提高甲状腺癌术前评估和诊断的准确性。关键词:甲状腺癌;螺旋CT;高频超声ComparativeStudyonSpiralCTandUltrasoundImagingCharacteristicsofThyroidCarcinomaPostgraduate:YangFanTutor:WenZhiviceprofessorAbstractObjective:TostudythespiralCT(SCT)andhigh-frequenceultrasound(US)appearancesofpreoperativethyroidcarcinoma,toevaluatethevalueofSpiralCTcombinedwithhigh-frequenceultrasound(US)indiagnosingthyroidcarcinoma.Methods:TheUSandSCTappearancein136casesofthyroidcarcinoma,confirmedwithoperationandpathology,wereanalyzedretrospectively.Allthepatientshadbothhigh-frequenceUSandSCTexaminations.SCTwithcontrast-enhancedscanandmultiplanarreconstruction(MPR)wereallemployedtodifferentiateprimarytumorandmetastaticlymphnodeintheneck.Result:Thefinaldetectionrateofthyroidcarcinomawithhigh-frequenceUSwas54.0%,andSCTwas76.0%,TherewassignificantlydifferencebetweenSCTandUS(P0.05);ThefinaldetectionrateofthespiralCT(SCT)andhigh-frequenceultrasound(US)togetherwas83.0%.In136casesofthyroidcarcinomaSCTcorrectlyidentified129of136(94.9%)andhigh-frequenceUS134of136(98.5%).30lesionswithmicrocalcificationsweredetectedonSCT,and46lesionsweredetectedbyhigh-frequenceUS.TherewassignificantlydifferencebetweenSCTandUS(P0.05).Indetectingmetastaticlympadenopathyintheneck,thediagnosticrateofcervicallymphnodemetastasiswithSCThigh-frequenceUSwere62.5%,75.7%.TherewassignificantlydifferencebetweenSCTandhigh-frequenceUS(P0.05).Conclusion:High-frequenceUSshouldbeusedasthefirstchoiceofexaminationforthyroidcarci
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