scholarly journals Comparative Diagnostic Accuracy of Contrast-Enhanced Ultrasound and Shear Wave Elastography in Differentiating Benign and Malignant Lesions: A Network Meta-Analysis

2019 ◽  
Vol 9 ◽  
Author(s):  
Rongzhong Huang ◽  
Lihong Jiang ◽  
Yu Xu ◽  
Yuping Gong ◽  
Haitao Ran ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Shear Wave ◽  
Meta Analysis ◽  
Shear Wave Elastography ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced ◽  
Malignant Lesions

scholarly journals Quantitative Analysis of the Time–Intensity Curve of Contrast-Enhanced Ultrasound of the Liver: Differentiation of Benign and Malignant Liver Lesions

Diagnostics ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1244
Author(s):  
Sonja Schwarz ◽  
Dirk-André Clevert ◽  
Michael Ingrisch ◽  
Thomas Geyer ◽  
Vincent Schwarze ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Diagnostic Accuracy ◽  
Late Phase ◽  
Focal Liver Lesions ◽  
Liver Lesions ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced ◽  
Malignant Lesions ◽  
Benign Liver ◽  
Benign Liver Lesions

Background: To evaluate the diagnostic accuracy of quantitative perfusion parameters in contrast-enhanced ultrasound to differentiate malignant from benign liver lesions. Methods: In this retrospective study 134 patients with a total of 139 focal liver lesions were included who underwent contrast enhanced ultrasound (CEUS) between 2008 and 2018. All examinations were performed by a single radiologist with more than 15 years of experience using a second-generation blood pool contrast agent. The standard of reference was histopathology (n = 60), MRI or CT (n = 75) or long-term CEUS follow up (n = 4). For post processing regions of interests were drawn both inside of target lesions and the liver background. Time–intensity curves were fitted to the CEUS DICOM dataset and the rise time (RT) of contrast enhancement until peak enhancement, and a late-phase ratio (LPR) of signal intensities within the lesion and the background tissue, were calculated and compared between malignant and benign liver lesion using Student’s t-test. Quantitative parameters were evaluated with respect to their diagnostic accuracy using receiver operator characteristic curves. Both features were then combined in a logistic regression model and the cumulated accuracy was assessed. Results: RT of benign lesions (14.8 ± 13.8 s, p = 0.005), and in a subgroup analysis, particular hemangiomas (23.4 ± 16.2 s, p < 0.001) differed significantly to malignant lesions (9.3 ± 3.8 s). The LPR was significantly different between benign (1.59 ± 1.59, p < 0.001) and malignant lesions (0.38 ± 0.23). Logistic regression analysis with RT and LPR combined showed a high diagnostic accuracy of quantitative CEUS parameters with areas under the curve of 0.923 (benign vs. malignant) and 0.929 (hemangioma vs. malignant. Conclusions: Quantified CEUS parameters are helpful to differentiate malignant from benign liver lesions, in particular in case of atypical hemangiomas.

scholarly journals Multiparametric ultrasound diagnosis of metastatic and lymphoproliferative changes in lymph nodes in primary-multiple malignant tumors, including breast cancer and lymphoma

2019 ◽  
Vol 8 (4) ◽  
pp. 37-44 ◽  
Author(s):  
E. V. Kovaleva ◽  
T. Yu. Danzanova ◽  
G. T. Sinyukova ◽  
P. I. Lepedatu ◽  
E. A. Gudilina ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Differential Diagnosis ◽  
Lymph Nodes ◽  
Shear Wave ◽  
Malignant Tumors ◽  
Shear Wave Elastography ◽  
Doppler Imaging ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced ◽  
Multiparametric Ultrasound

In this article, based on two clinical examples, the possibilities of multiparametric ultrasound in the differential diagnosis of metastatic and lymphoproliferative changes in lymph nodes in primary-multiple malignant tumors, including breast cancer and lym - phoma, are evaluated. Multiparameteric ultrasound includes B-mode, color and energy Doppler imaging, strain elastography, shear wave elastography and contrast-enhanced ultrasound (CEUS). Standardization and reproducibility of these ultrasound techniques will allow to objectify the study, obtaining specific indicators of shear wave velocity in the zones of interest and specific signs of contrast enhancement, which can be used as impor tant differential diagnostic tool in oncology.

scholarly journals Imaging appearance and role of CEUS of high flow priapism. A case report.

2019 ◽  
Vol 21 (3) ◽  
pp. 353
Author(s):  
Florin Elec ◽  
Tudor Moisoiu ◽  
Dan Burghelea ◽  
Razvan Zaro ◽  
Radu Badea
Keyword(s):  
Case Report ◽  
Early Diagnosis ◽  
Shear Wave ◽  
Ultrasound Examination ◽  
Shear Wave Elastography ◽  
High Flow ◽  
Contrast Enhanced Ultrasound ◽  
Imaging Appearance ◽  
Contrast Enhanced

High flow priapism caused by perineal trauma is a relatively rare disorder. Early diagnosis represents a mandatory condition for the therapeutic resolution. Ultrasound examination is affordable and a within reach method for diagnosis also in an emergency context. We present the case of a 56-year-old male patient with traumatic priapism which was subsequently investigated by contrast-enhanced ultrasound and shear wave elastography. This may be one of the first cases presented in the literature

scholarly journals Capabilities of contrast-enhanced ultrasound in the diagnosis of liver cirrhosis

2019 ◽  
Vol 3 (29) ◽  
pp. 26-30 ◽  
Author(s):  
A. V. Borsukov ◽  
A. O. Buyeverov ◽  
A. V. Tikhankova
Keyword(s):  
Liver Cirrhosis ◽  
Viral Hepatitis ◽  
Shear Wave ◽  
Ultrasound Examination ◽  
Reference Method ◽  
Shear Wave Elastography ◽  
Liver Parenchyma ◽  
Chronic Viral Hepatitis ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced

The pilot results of the contrast — enhanced ultrasound (CEUS) application in the liver parenchyma assessment are presented in this article. 65 people aged 37 to 69 years were examined, 41 of them (63 %) with chronic viral hepatitis and 24 people (37 %) with established diagnosis of liver cirrhosis as the outcome of viral hepatitis. All patients underwent multiparametric ultrasound examination: ultrasound of the liver in B — mode, color Doppler’s mapping of liver vessels, 2D — Shear Wave Elastography (2DSWE) and CEUS. Liver biopsy and D — Shear Wave Elastography (2DSWE) were used as the reference method.

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