title: Value of Contrast-enhanced Ultrasound for Small Focal Liver Lesions.
abstract: Objective To explore the diagnostic value of contrast-enhanced ultrasound (CEUS)for small focal liver lesions (FLLs). Methods The clinical data,CEUS findings,and pathology of 69 patients with small FLLs were retrospectively analyzed. Patients were grouped according to size of FLLs and the performance of CEUS was compared. Results The accuracy,sensitivity,specificity,positive predictive value,and negative predictive value of CEUS for the 69 FLLs were 94.2%,95.2%,93.8%,87.0%,and 97.8%,respectively. Rate of fast wash-out in portal vein phase was lower in group of diameters ≤2 cm than that in group of diameters>2 cm (P<0.05). Conclusions CEUS has a high diagnostic value for small FLLs.However,the CEUS findings of malignant lesions smaller than 2 cm are not typical in the portal phase and therefore the diagnosis should also be based on clinical features.
authors.affiliation: 1Department of Ultrasound,PUMC Hospital,CAMS and PUMC,Beijing 100730,China;
authors.forename: Meng-na
authors.lastname: He
authors.affiliation: 1Department of Ultrasound,PUMC Hospital,CAMS and PUMC,Beijing 100730,China;
authors.forename: Ke
authors.initials: K
authors.lastname: Lv
authors.affiliation: 1Department of Ultrasound,PUMC Hospital,CAMS and PUMC,Beijing 100730,China;
authors.forename: Yu-xin
authors.lastname: Jiang
authors.affiliation: 1Department of Ultrasound,PUMC Hospital,CAMS and PUMC,Beijing 100730,China;
authors.forename: Yu
authors.lastname: Xia
authors.affiliation: 1Department of Ultrasound,PUMC Hospital,CAMS and PUMC,Beijing 100730,China;
authors.forename: Jie
authors.lastname: Han
authors.affiliation: 2Department of Ultrasound,Pinggu Hospital,Beijing 101200,China
authors.forename: Xue-he
authors.lastname: Zhang
mesh_terms: D003287:Contrast Media; D006801:Humans; D008107:Liver Diseases / Q000000981:diagnostic imaging*; D011169:Portal Vein; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014463:Ultrasonography
chemical_list: D003287:Contrast Media