CAJ | 학술논문

目的比较常规超声和超声弹性成像( ultrasonic elastography,UE)对肝良恶性肿瘤的诊断价值.方法对145例患者共159个肝病灶进行了常规超声及UE检查,以临床随访及病理结果作为金标准,构建ROC曲线,比较两种方法诊断肝病灶的效率,Kappa值评估检查者之间的一致性.结果检查者之间的一致性UE较常规超声高,κ值分别为0.782和0.325,常规超声、UE及常规超声结合UE的ROC曲线下面积分别为0.76、0.77、0.87,常规超声结合UE能显著提高判别良恶性肿瘤的敏感性和准确性(P＜0.05).结论 UE与常规超声的结合能够提高肝良恶性肿瘤的鉴别诊断能力.
목적 비교상규초성화초성탄성성상( ultrasonic elastography,UE)대간량악성종류적진단개치.방법 대145례환자공159개간병조진행료상규초성급UE검사,이림상수방급병리결과작위금표준,구건ROC곡선,비교량충방법진단간병조적효솔,Kappa치평고검사자지간적일치성.결과검사자지간적일치성UE교상규초성고,κ치분별위0.782화0.325,상규초성、UE급상규초성결합UE적ROC곡선하면적분별위0.76、0.77、0.87,상규초성결합UE능현저제고판별량악성종류적민감성화준학성(P＜0.05).결론 UE여상규초성적결합능구제고간량악성종류적감별진단능력.
Objective To evaluate the diagnostic value of conventional ultrasound and ultrasonic elastography (UE) in differentiating benign and malignant hepatic lesions.Methods One hundred and forty-five patients with 159 hepatic tumors were included in the study.Conventional ultrasound scan and UE were performed on each patient.Pathological results were as the golden standard.The diagnostic performance of the 2 methods were evaluated with receiver operating characteristic (ROC) curves and the interobserver agreements were analysed.Results A better interobserver agreement was achieved in UE (κ =0.325 at conventional ultrasound versus κ =0.782 at UE).The area under ROC curve of conventional ultrasound,ultrasonic elastography and the combination of both methods were 0.76,0.77 and 0.87,respectively.After the combination of the 2 methods,the sensitivity and accuracy could be enhanced significantly ( P ＜0.05).Conclusions Conventional ultrasound combined with UE may be more helpful in differentiating malignant from benign hepatic tumors.