超声弹性成像应变率比值法和分级法对腮腺肿块良恶性鉴别诊断的对比研究  

Value of elastic strain ratio vs elastic grade in diagnosing benign and malignant parotid masses with ultrasound elastography

作　　者：韩彬[1] 刘玉婷 张磊[3] Han Bin;Liu Yuting;Zhang Lei(Department of Ultrasonography,Affiliated Hospital of Shanxi College of Traditional Chinese Medicine,Taiyuan 030024,China)

机构地区：[1]山西中医学院附属医院超声科,太原030024 [2]山西省心血管病医院神经内科 [3]山东省济宁医学院附属医院超声科

出　　处：《中国药物与临床》2020年第11期1782-1785,共4页Chinese Remedies & Clinics

摘　　要：目的探讨超声弹性成像应变率比值(SR)法和分级法对腮腺肿块良恶性鉴别诊断中的应用价值。方法选取我院收治的59例腮腺肿块患者,先常规超声检查,再行超声弹性成像检查,获取图像后,采用分级法对腮腺肿块进行评估,并测量肿块与周围正常组织的SR,与术后病理诊断结果对照比较,通过采用受试者工作特征(ROC)曲线确定SR的临界值。结果腮腺肿块良性组SR为0.26~2.15,恶性组SR为1.03~3.54,良性和恶性肿瘤组之间差异有统计学意义(P=0.01);ROC曲线分析中,良、恶性肿块SR的临界点为2.11,准确度为93.22%,敏感度为91.67%,特异度为81.82%;SR法对腮腺肿块良恶性的诊断优于分级法,两者比较差异有统计学意义(P<0.05)。结论SR法和分级法均可对腮腺肿块的良恶性做出有效、有价值的分析,为临床治疗提供客观依据。Objective To investigate the value of elastic strain rate(SR)vs elastic grade in diagnosing benign and malignant parotid masses with ultrasound elastography.Methods A total of 59 patients with parotid masses treated in our hospital were enrolled.The subjects underwent conventional ultrasound examination,followed by ultra-sound elastography.On obtained images,the parotid gland masses were evaluated by elastic grading and measured for the SR between the mass and surrounding normal tissues.Using postoperative pathology as reference,the cut-off value of SR was determined with receiver operating characteristic(ROC)curve.Results The SR was 0.26-2.15 for benign parotid massesand 1.03-3.54 for malignant ones,with statistically significant difference(P=0.01).The cut-off value for SR in distinguishing benign and malignant masses was 2.11,yielding an accuracy of 93.22%,asensitivity of 91.67%,and aspecificity is 81.82%.The use of SR was more helpful in diagnosing benign and malignant parotid masses com-pared with elastic grading,with statistically significant difference between the two approaches(P<0.05).Conclusion Either elastic SR or elastic grading may help effective and reliable evaluation of benign and malignant parotid masses in ultrasound elastography and provide objective evidence for clinical treatment.

关 键 词：超声弹性成像 腮腺肿块 弹性应变率比值 弹性分级法 

分 类 号：R445.1[医药卫生—影像医学与核医学] R739.87[医药卫生—诊断学]