中华超声影像学杂志最新文献

{"title":"Study of Xplane imaging in quantifying the maximal volume of the left and right atria and evaluating atrial function in fetuses with abnormal heart morphology","authors":"Fang Yun, Zhao Bowen, Li Jinbo, Wang Linhua, Pan Mei, Wang Bei, Peng Xiaohui, Chen Ran","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.11.006","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.11.006","url":null,"abstract":"Objective \u0000To explore the feasibility of real-time three-dimensional ultrasound Xplane imaging in quantifying left and right atrial diastolic maximal volume (LAVmax, RAVmax) and evaluating cardiac diastolic function in fetuses with cardiac disease in second and later trimesters. \u0000 \u0000 \u0000Methods \u0000One hundred and forty-four fetuses with abnormal heart morphology at 16-34 weeks of gestational age were included and divided into 3 groups according to the influence of pathological changes on atrial volume: group A with symmetrical left and right atrial volume, group B with decreased left atrial volume and increased right atrial volume and group C with increased left atrial volume and decreased right atrial volume, and the fetus were also divided into 2 groups according to the law of fetal development: the middle pregnancy group (16-27+ 6 weeks) and the late pregnancy group (28-34+ 6 weeks). Using the \" Xplane\" mode of volume probe, the maximal atrial volume was calculated automatically by tracing method and three-path line method. The correlation between the two methods in quantitative LAVmax was validated by paired sample t test and Pearson correlation analysis. The correlation between LAVmax, RAVmax and gestational age were analyzed by curve fitting. The volumes of bilateral chambers and the average weekly growth rates of E peak, A peak and E/A value of mitral and tricuspid orifices were calculated and compared. \u0000 \u0000 \u0000Results \u0000There was no significant statistical difference between the maximal volume of the left atrium obtained by the tracing method and the three-diameter line method (P>0.05), and there was high correlation between the two methods in the comparison of the maximal volume of the left atrium (r=0.90, 0.88, 0.85; all P<0.01). The data of group A, B and C showed that LAVmax and RAVmax could increase with the increase of gestational weeks in a certain period of abnormal state, and had a good correlation with them(LAVmax: r=0.78, 0.74, 0.78, all P<0.005; RAVmax: r=0.79, 0.77, 0.78, all P<0.005). The average weekly growth rate of RAVmax showed an advantage in group A, B and C. Especially in group C with reduced right atrium, the growth rate of right atrium was 8.15%, which was higher than that of group B with decreased left atrium by 5.06%. The weekly growth rates of E peak and E/A in tricuspid orifice were also higher than those in mitral orifice. The E peak and E/A values of tricuspid orifice in group C were 4.05% and 0.60%, respectively, higher than those in group B, which were 2.58% and 0.02%. Peak A showed an increase in growth rate in group B and group C with decreased atria, peak A values in group B and group C increased by 4.01% and 2.19%, respectively. \u0000 \u0000 \u0000Conclusions \u0000The right ventricular dominance of fetal heart can still be reflected in certain stages of disease, and the atrial active systolic may play a regulatory role in the filling of cardiac blood flow. Real-time three-dimensional ultrasound Xplane imaging could be used to quan","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"951-957"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49654641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The ultrasonic appearances of primary testicular lymphoma","authors":"Xiubin Tang, E. Xue, Liwu Lin, Qingfu Qian, Li-jun Xie, Xiu-juan Zhang","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.11.013","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.11.013","url":null,"abstract":"Objective \u0000To explore the sonographic features of primary testicular lymphoma(PLT). \u0000 \u0000 \u0000Methods \u0000The sonographic features of 16 PLT patients confirmed by surgery and pathology were retrospectively analyzed. \u0000 \u0000 \u0000Results \u0000Sixteen PLT patients were typed into 3 ultrasonic patterns: ①The diffuse homogeneous echo type: 2 cases, the ultrasonic features were homogeneous sieve-like hypoechoic echo, the blood flow signal was rich and radially distributed, with interstisial fibrosis inapparently under-microscope. ②The diffuse uneven homogeneous echo type: 9 cases, the ultrasonic features lobulated or map-like heterogeneous hypoechoic features, the blood flow signal was rich in linear distribution, and interstisial fibrosis proliferated to form fibrous septa under-microscope. ③The focal nodular pattern echo type: 5 cases, the ultrasonic features were homogeneous hypoechoic nodules, the blood flow signal was few, interstisial fibrosis hyperplasia surrounding the tumor under-microscope. \u0000 \u0000 \u0000Conclusions \u0000Ultrasonic appearances of primary testicular lymphoma are closely related to its pathologic characteristics, the recognization of their relations contributes to improve the diagnostic value of ultrasound. \u0000 \u0000 \u0000Key words: \u0000Ultrasonograghy; Lymphoma, testis, primary","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"990-993"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43260216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic value of the combining contrast-enhanced ultrasonography and gadoxetic acid-enhanced magnetic resonance imaging in the diagnosis of early hepatocellular carcinoma","authors":"J. Ding, Yan Zhou, Fengmei Wang, Xiang Zhang, Yandong Wang, Hongyu Zhou, X. Jing","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.11.008","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.11.008","url":null,"abstract":"Objective \u0000To compare the diagnostic efficacies of contrast-enhanced ultrasonography (CEUS) and gadoxetic acid-enhanced magnetic resonance imaging (EOB-MRI) in the diagnosis of liver nodules ≤2.0 cm in patients with cirrhosis, and to explore the clinical values of combining the arterial phase of CEUS and hepatobiliary phase of EOB-MRI in the diagnosis of early hepatocellular carcinoma (HCC). \u0000 \u0000 \u0000Methods \u0000One hundred and thirteen nodules with diameters lower than 2.0 cm in 98 patients from February to December 2016 in Tianjin Third Central Hospital were included in this retrospective study. The enhancement patterns of nodules in CEUS and EOB-MRI were analyzed. The reference standard was pathological diagnosis or substantial lesion growth at a follow-up of at least 6 months. The efficiencies of CEUS and EOB-MRI in the diagnosis of liver lesions with a diameter lower than 2.0 cm were compared. A new diagnostic strategy, which combines the arterial phase of CEUS and hepatobiliary phase of EOB-MRI was presented to diagnose the early HCC in this study. \u0000 \u0000 \u0000Results \u0000The area under the ROC curve of CEUS and EOB-MRI were 0.858 and 0.814(P>0.05), the sensitivity were 79.1%, 81.4%, specificity were 92.6%, 81.5% and diagnostic accuracy were 82.3% and 81.4%, respectively. By combination of CEUS and EOB-MRI, the area under the ROC curve was 0.831, without difference from CEUS, EOB-MRI (0.831 vs 0.858, 0.814; all P>0.05); its sensitivity was 66.3%, specificity was 100% and diagnostic accuracy was 74.3%. The area under the ROC curve of the new diagnostic strategy, combining the arterial phase of CEUS and hepatobiliary phase of EOB-MRI was 0.934, which was larger than that of CEUS, EOB-MRI and the combination of CEUS and EOB-MRI(0.934 vs 0.858, 0.814, 0.831; all P<0.05). The sensitivity, specificity and diagnostic accuracy of new strategy were 94.2%, 92.6% and 93.8%, respectively. \u0000 \u0000 \u0000Conclusions \u0000The new diagnostic strategy based on the arterial phase of CEUS and hepatobiliary phase of EOB-MRI improves the sensitivity and accuracy in detecting small lesions, which can be used as a complementary diagnostic enhancement pattern for lesions with an atypical enhancement pattern in CEUS or EOB-MRI. \u0000 \u0000 \u0000Key words: \u0000Contrast-enhanced ultrasonography; Gadoxetic acid-enhanced magnetic resonance imaging; Micro hepatocellular carcinoma; Diagnosis","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"964-970"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46968689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the correlation between HER-2 expression status and multimode ultrasonic characteristics in ER-negative breast cancer","authors":"Tianci Wei, Lei Zhang, Jinjin Liu, Jia Kang","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.11.010","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.11.010","url":null,"abstract":"Objective \u0000To explore the correlation between the expression status of human epidermal growth factor receptor 2 (HER-2) and the characteristics of conventional ultrasound, shear wave elastography(SWE) and contrast enhanced ultrasound(CEUS) images in breast cancer patients with negative expression of estrogen receptor (ER). \u0000 \u0000 \u0000Methods \u0000In this study, 117 patients with 117 lesions were selected from the Second Hospital of Harbin Medical University Hospital, who had definite pathology and ER negative expression, including 62 patients with positive HER-2 (group Ⅰ) and 55 patients with negative HER-2(group Ⅱ). Conventional ultrasound images and SWE were collected preoperatively, and CEUS images were collected in 62 patients to analyze the correlation between the expression of HER-2 and the ultrasonic characteristics of the three ultrasonic modes. \u0000 \u0000 \u0000Results \u0000①Conventional ultrasound: the groupⅠwas characterized by irregular shape, unclear boundary, mainly with spicule edges, microcalcification, axillary lymph node metastasis and higher histological grading. The groupⅡhad no such characteristics (all P<0.05). ②SWE: the Emax, Emean and Eratio of group Ⅰ were higher than group Ⅱ(all P<0.05). ③CEUS: the peak time of group Ⅰ was earlier than group Ⅱ, the slope of ascending branch and the area under the curve were larger, and the characteristics of perforating vessels were easier to be observed, while perfusion defects were more likely to occur in groupⅡ(all P<0.05). \u0000 \u0000 \u0000Conclusions \u0000In the case of ER negative expression, there are obvious differences in multimodal sonograms of different breast cancer HER-2 expression conditions. The analysis of the above sonograms will play an important guiding role in the selection of clinical treatment plans. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Breast neoplasms; Shear wave elastography; Contrast-enhanced ultrasound; Human epidermal growth factor receptor 2","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"976-980"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43180893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The performance of ultrasound for differentiation of infantile fibrosarcoma and soft tissue hemangioma","authors":"Yu Wang, Xiaoman Wang, L. Jia, L. Fu","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.11.014","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.11.014","url":null,"abstract":"Objective \u0000To investigate the differential performance of ultrasound between infantile fibrosarcoma(IFS) and soft tissue hemangioma. \u0000 \u0000 \u0000Methods \u0000The retrospective study was conducted from January 2012 to January 2019 in Beijing Children′s Hospital, Capital Medical University. A total of 16 patients with IFS were consecutively collected as IFS group, and 26 consecutive patients with soft tissue hemangioma (hemangioma group) were selected for comparison according to the tumor size of IFS. All the final diagnosis got confirmed by pathological analysis. The ultrasonographic features of IFS and hemangioma were compared and analyzed, and after weighting on the basis of the dominance ration (OR), the ultrasonic features with diagnostic value were used to establish the prediction equation. Then, the differential performance of every feature and the prediction equation was evaluated via the ROC analysis. \u0000 \u0000 \u0000Results \u0000There were differences in the lesion echo, margin and blood flow characteristics between IFS group and hemangioma group (P=0.013, 0.002, 0.005), the area under the ROC (AUC) of applying every ultrasonic feature with diagnostic value for differentiation were 0.695, 0.740, and 0.700, respectively. Benefiting from the employment of the prediction equation, the AUC was improved to 0.887 with a sensitivity of 81.3% and a specificity of 96.2%, which were better than the diagnosis by any single feature (P=0.017, 0.035, 0.003). \u0000 \u0000 \u0000Conclusions \u0000Ultrasound can be utilized to discriminate infantile fibrosarcoma from soft tissue hemangioma. The use of prediction equation can further improve the differential performance with higher clinical value. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Infantile fibrosarcoma; Hemangioma; Children","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"994-998"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45598430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasound evaluation and progress of left ventricular diastolic function in patients with arrhythmia","authors":"Beibei Ge, Di Xu, Yanjuan Zhang, Yan Chen, Yan Shen, Lei Zhou, Hong-ping Wu, Y. Yong, L. Ji, Fang Xu","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.019","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.019","url":null,"abstract":"心律失常是临床常见病、多发病，涵盖病种多。既往对心律失常患者心功能的分析多聚焦于对心肌收缩功能的影响。近年来，随着对心脏舒张功能认识的逐步深入，对舒张功能的评估趋于规范，其中对不同心律失常患者舒张功能的研究也受到关注。本文就近年来包括心房颤动、室性早搏、左束支传导阻滞、起搏器植入、预激综合征等常见心律失常患者左室舒张功能评估的研究进行汇总，重点阐述了舒张功能的评估方法、常用指标、此类患者的舒张功能变化和超声在评估此类患者舒张功能中的进展。","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"915-920"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49560581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of left ventricular energy loss between patients with hypertrophic cardiomyopathy and hypertensive left ventricular hypertrophy","authors":"Yang Liu, Pulati Zibire, Mengruo Zhu, Hai-yan Chen, C. Pan","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.002","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.002","url":null,"abstract":"Objective \u0000To evaluate left ventricular energy loss (EL) in patients with hypertrophic cardiomyopathy (HCM) and hypertensive left ventricular hypertrophy (H-LVH) using vector flow map (VFM). \u0000 \u0000 \u0000Methods \u0000Twenty-five HCM patients, 21 H-LVH patients and 36 healthy subjects were selected as HCM group, H-LVH group and control group respectively in Zhongshan Hospital Fudan University. Color Doppler imaging of long-axis view loops were recorded for VFM analysis. According to the opening and closing of the aortic valve and mitral valve, isovolumic contraction (IVC), isovolumic relaxation (IVR), ejection period (EP) and filling period (FP) were determined. The total left ventricular EL(T-EL), IVC-EL, IVR-EL, EP-EL and FP-EL as well as peak EL during EP and FP were quantified. The measurement results were taken as the average of three cardiac cycles. \u0000 \u0000 \u0000Results \u0000①Compared to the control group, FP-PEL was decreased in both patient groups, and HCM group was the lowest (P<0.05). Compared to the control group, EP-EL and EP-PEL were increased, while FP-EL was decreased in HCM group (all P<0.05); IVC-EL, EP-PEL, and EP-EL were increased in H-LVH group (all P<0.05). ②Compared with HCM group, the IVC-EL, FP-PEL, IVR-EL and FP-EL of H-LVH were higher(all P<0.05). ③The ROC analysis of five parameters with statistical difference between HCM group and H-LVH group showed that FP-EL and IVC-EL were more effective in the differential diagnosis of HCM and H-LVH. \u0000 \u0000 \u0000Conclusions \u0000Patients with cardiac hypertrophy and normal LVEF have increased systolic EL and reduced diastolic EL. H-LVH patients have more energy loss than HCM patients.EL might be a sensitive and valuable parameter to distinguish cardiac hypertrophy of different etiologies. \u0000 \u0000 \u0000Key words: \u0000Echocardiography; Ventricular function, left; Energy loss; Hypertrophic cardiomyopathy; Hypertension","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"837-841"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43123919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of ultrasound radiomics with conventional imaging models: diagnosis of central cervical lymph node metastasis in papillary thyroid carcinoma","authors":"Yun-xia Huang, Jin Zhou, Tongtong Liu, Yi Guo, Yuyang Tong, Jinhua Yu, Yuanyuan Wang, Min Chen, Shichong Zhou, Cai Chang","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.011","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.011","url":null,"abstract":"Objective \u0000To compare the difference of diagnostic ability between ultrasound radiomics (USR) and different conventional imaging models of central neck (Ⅵ) lymph node metastasis in papillary thyroid carcinoma (PTC). \u0000 \u0000 \u0000Methods \u0000A training set of 609 cases was set up. USR features were extracted and screened by USR method. A weighted formula was established to calculate the USR score of each patient by ultrasound image. The USR score of the best diagnostic ability was obtained by statistical method and set as the diagnostic criterion. A test set of 326 cases was established to compare the diagnostic ability of USR score with ultrasound (US), computed tomography (CT) and US combined CT. \u0000 \u0000 \u0000Results \u0000The accuracy, sensitivity, specificity, area under ROC curve and Youden index of USR score in test set were 0.804, 0.867, 0.770, 0.766, 0.533, respectively, which were significantly higher than the corresponding values of US, CT and US combined CT(all P=0.000). \u0000 \u0000 \u0000Conclusions \u0000USR score obtained with USR method can effectively predict lymph node metastasis in Ⅵ region of PTC. The diagnostic efficiency and clinical value of USR score were significantly higher than those of conventional medical imaging models. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Radiomics; Papillary thyroid carcinoma; Lymph node metastasis; Central neck; Computer tomography","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"882-887"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42500990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The ultrasonographic characteristics of fibrocystic breast change","authors":"Dong Wei, Xueying Lin, Yi-mi He, E. Xue","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.014","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.014","url":null,"abstract":"Objective \u0000To investigate the ultrasonographic features of fibrocystic breast change (FBC) and improve the ultrasonographic diagnosis and differential diagnosis of FBC. \u0000 \u0000 \u0000Methods \u0000Fifty-five patients of FBC with 60 lesions and 39 patients of invasive ductal carcinoma (IDC) with 42 lesions, which were confirmed by pathology after operation in the Affiliated Union Hospital of Fujian Medical University from January 2014 to February 2019 were enrolled. The preoperative sonographic findings of FBC and IDC were retrospectively analyzed and compared. \u0000 \u0000 \u0000Results \u0000There was no significant difference between the two groups in the rates of showing irregular shape, which were 86.7% in FBC group and 88.1% in IDC group, respectively (P>0.05), but the rate of showing crab feet or burrs on the edge of lesions in FBC group was lower than that in IDC group(P<0.05). The occurrence rates of posterior echo enhancement and cystic degeneration in FBC group were 81.7% and 71.7% respectively, which were significantly higher than those in IDC group (38.1% and 16.7%)(P<0.001). In addition, the FBC group showed fewer features such as hyperechoic halo and more features such as hypovascular supply than that of IDC group (all P<0.001). \u0000 \u0000 \u0000Conclusions \u0000In terms of ultrasonic features, including irregular shape or even crab feet and burrs, FBC can be easily misdiagnosed as malignant tumors. However, posterior echo enhancement, interior scattered small cysts, lack of blood supply and rare hyperechoic halo may be the characteristics of FBC, which can be differentiated from malignant tumors. \u0000 \u0000 \u0000Key words: \u0000Ultrasonography; Fibrocystic breast change; Invasive ductal carcinoma","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"897-900"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43021952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Site-targeted imaging enhancement of viable myocardium after ischemia-reperfusion by a novel nano-scale ultrasound contrast agent: a vivo study","authors":"Yingying Liu, M. Xie, Jinfeng Xu, Li Zhang, Jing Zhang, F. Xiang, Xiao-juan Qin, Nan Ding, Chang Yang, Guangya Xiang","doi":"10.3760/CMA.J.ISSN.1004-4477.2019.10.016","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1004-4477.2019.10.016","url":null,"abstract":"Objective \u0000To prepare a kind of lipid nanoparticle ultrasound contrast agents with the ability to target to viable myocardium for diagnosis. \u0000 \u0000 \u0000Methods \u0000The agent was a biotinylated, fluorescent-labelled, lipid-coated, liquid perfluorocarbon emulsion. Physico-chemical properties of the agent were measured, including size distribution, Zeta Potential, concentration and so on. Ischemia-reperfusion models were created in rats, and then exposed to biotinylated anti-MCP-1 monoclonal antibody, rhodamine avidin and biotinylated, FITC-labelled nanoparticles, respectively. Echocardiography was taken before and after injection. Frozen sections of their hearts were observed under fluorescence microscope. \u0000 \u0000 \u0000Results \u0000The particle diameter, zeta potential and concentration of lipid nanoparticles were (172.30±52.06)nm, (-33.10±6.50)mV and (2.28±0.46)×1011/ml, respectively. From the short-axis view, the myocardium under endocardium of anterior wall was enhanced obviously. While myocardium of other walls were still. The lipid nanoparticles located in the myocardium of anterior wall and gave out bright green and red fluorescence under fluorescence microscope, while neither lipid nanoparticles nor fluorescence were found in other sites of ventricular myocardium. \u0000 \u0000 \u0000Conclusions \u0000The viable myocardium can be targeted and acoustically enhanced by the self-made nano-scale ultrasound contrast agent. This new agent has potential to improve sensitivity and specificity for noninvasive identifying viable myocardium. \u0000 \u0000 \u0000Key words: \u0000Ultrasound contrast agents; Nano-scale; Perfluorocarbon; Viable myocardium","PeriodicalId":10224,"journal":{"name":"Chinese Journal of Ultrasonography","volume":"28 1","pages":"907-911"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47033076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}