ObjectiveTo investigate the value of high frequency ultrasound and elasticity imaging techniquesof thyroid papillary microcarcinoma under different background.Methods178patientswith thyroid papillarymicrocarcinomawhich were confirmed by pathology were examined by high frequency ultrasonography and elastography. The cases were divided into normal group and thyroid diffuse diseasegroup.The features were analyzed and the sensitivity for detecting of the high frequency ultrasound,elasticity imaging score and elasticity imaging strain ratio(SR)in different groups were compared.ResultIn the normal group,the sensitivity of high frequency ultrasonography was45.5%;Elasticity imaging strain ratio(SR):85.3%;Elasticity imaging score 81.2%;It showed the sensitivity for detecting in elasticity imaging strain ratio(SR)and elasticity imaging score were higher then in high frequency ultrasonography,which was significant difference in the three methods(P<0.05).Whilethe sensitivity for detecting in elasticity imaging strain ratio(SR)and elasticity imaging scorehad no significant difference between two methods(P>0.05).In the thyroid diffuse disease group.the sensitivity of high frequency ultrasonography was 32.9%;Elasticity imaging strain ratio(SR)61.8%;Elasticity imaging score:76.3%;It showed the sensitivity for detecting in elasticity imaging strain ratio(SR)and elasticity imaging score were higher then in high frequency ultrasonography,which had significant difference in the three methods(P<0.05).The sensitivity for detecting in elasticity imaging score were higher then in elasticity imaging strain ratio(SR),which had significant difference in the three methods(P<0.05).ConclusionssElasticity imaging strain ratio(SR)and elasticity imaging scorewere valuable in diagnosis of thyroid papillary microcarcinoma.%目的：探讨甲状腺乳头状微癌（PTMC）在正常和甲状腺弥漫性病变背景下高频超声及弹性成像的诊断价值。方法选取178例经病理证实为PTMC的高频超声及超声弹性成像声像图资料，分为甲状腺正常背景组与甲状腺弥漫性病变组，分析高频超声，弹性成像评分法及弹性成像SR比值法分别在两种背景下对PTMC的识别特点，并对比分析3种方法对PTMC检出的敏感性。结果在甲状腺正常背景组中，高频超声检查对甲状腺乳头状癌检出的敏感性45.5%；弹性成像SR比值法诊断敏感性85.3%；弹性成像评分法诊断敏感性81.2%。在甲状腺正常背景组中，弹性成像SR比值法和弹性成像评分法对PTMC的敏感性高于高频超声，差异有统计学意义（P<0.05）。而弹性成像评分法与弹性成像SR比值法在甲状腺正常背景组中对PTMC检出的敏感性差异无统计学意义（P>0.05）。在甲状腺弥漫性病变背景组中，高频超声检查对PTMC检出的敏感性32.9%；弹性成像SR比值法的敏感性61.8%。弹性评分法诊断敏感性76.3%；在甲状腺弥漫性病变背景组中，弹性成像SR比值法和弹性成像评分法对PTMC的敏感性高于高频超声，差异有统计学意义（P<0.05）。弹性成像评分法对PTMC的敏感性高于弹性成像SR比值法，差异有统计学意义（P<0.05）。结论超声弹性评分法及SR比值法对PTMC的检出有较高的价值。
展开▼
