scholarly journals Use of Contrast-Enhanced Ultrasonography and Shear-Wave Elastography in the Diagnosis of Granulomatous Colitis in a French Bulldog

2021 ◽  
Vol 8 (7) ◽  
pp. 133
Author(s):  
Alessia Cordella ◽  
Emmelie Stock ◽  
Isabel Van de Maele ◽  
Annelies Willems ◽  
Jimmy Saunders
Keyword(s):  
Shear Wave ◽  
Histological Examination ◽  
Shear Wave Elastography ◽  
Granulomatous Colitis ◽  
Colonic Wall ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography ◽  
French Bulldog

An 11-month-old male intact French Bulldog was referred for chronic intermittent diarrhea lasting three months. Ultrasonographic (US) examination revealed severe thickening of the wall of the colon and caecum; contrast-enhanced US (CEUS) and elastography showed increased, heterogeneous vascularization and non-uniform stiffness of the colonic wall. The mucosa was thickened, fragile, and ulcerated as revealed by endoscopy, and histological examination confirmed the suspicion of granulomatous colitis.

scholarly journals Shear wave elastography and contrast-enhanced ultrasonography in the diagnosis of thyroid malignant nodules

2016 ◽  
Vol 5 (6) ◽  
pp. 724-730 ◽  
Author(s):  
Mei Chen ◽  
Ke-Qin Zhang ◽  
You-Feng Xu ◽  
Sheng-Min Zhang ◽  
Yong Cao ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography

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 Arrival-Time Parametric Imaging in Contrast-Enhanced Ultrasound for Diagnosing Fibrosis in Primary Biliary Cholangitis

2021 ◽  
Author(s):  
Naoyuki Yoshimine ◽  
Noritaka Wakui ◽  
Hidenari Nagai ◽  
Yoshinori Igarashi
Keyword(s):  
Liver Biopsy ◽  
Shear Wave ◽  
Arrival Time ◽  
Characteristic Curve ◽  
Shear Wave Elastography ◽  
Disease Stage ◽  
Primary Biliary Cholangitis ◽  
Parametric Imaging ◽  
Contrast Enhanced ◽  
Arrival Time Parametric Imaging

Abstract Background: To investigate arrival-time parametric imaging (At-PI) in contrast-enhanced ultrasonography (CEUS) for diagnosing fibrosis in primary biliary cholangitis (PBC). Methods: Participants were 48 patients (male/female: 8/40; mean age, 60 ± 13 years) with PBC diagnosed by liver biopsy who underwent CEUS during 2009-2019. Of these, 27 (male/female: 4/23; mean age, 61 ± 13 years) who also underwent shear wave elastography (SWE) were further analyzed. SonazoidTM was intravenously injected and CEUS performed. Contrast dynamics of hepatic segment V and the right kidney were recorded. At-PI were generated from the recorded video clips. Contrast arrival time <5 s was displayed in red, and the ratio of red (ROR) area to the entire liver contrast-enhanced area was calculated. ROR and shear wave velocity (Vs) measured by SWE were compared by fibrosis stage (F0-F3), bile duct loss score, cholangitis activity, hepatitis activity (HA0-HA3), and disease stage (stage 1-4), as determined by liver biopsy.Results: ROR significantly differed between F0 and F2-F3 and between F1 and F2-3. Using ROR to diagnose ³F1 (³F2), area under the receiver operating characteristic curve (AUROC) was 0.77 (0.92) (cutoff, 36.7% [47.1%]; sensitivity, 0.75 [0.92]; specificity, 0.82 [0.81]). Vs significantly differed between F0 and F1, F0 and F2-3, and HA0 and HA1. For diagnosing ³F1 (³F2), Vs had AUROC of 0.84 (0.80) (cutoff, 1.23 m/s [1.40 m/s]; sensitivity, 0.75 [0.60]; specificity, 0.82 [0.86]).Conclusions: At-PI was useful for diagnosing fibrosis, especially F2 or worse, in PBC, suggesting that At-PI can correctly diagnose fibrosis regardless of hepatic inflammation.

scholarly journals Efficacy of contrast-enhanced ultrasonography and shear-wave elastography in conjunction with BI-RADS classification for diagnosis of small breast nodules

2020 ◽  
Author(s):  
Yan Shen ◽  
Jie He ◽  
Miao Liu ◽  
Jiaojiao Hu ◽  
Yonglin Wan ◽  
...  
Keyword(s):  
Shear Wave ◽  
Breast Imaging ◽  
Imaging Techniques ◽  
Shear Wave Elastography ◽  
Roc Curves ◽  
Imaging Data ◽  
Diagnostic Efficacy ◽  
Predictive Values ◽  
Small Breast ◽  
Contrast Enhanced

Abstract Background: Identification of malignancy in small breast nodules can be difficult using conventional methods, especially in patients with dense breast tissue. Advanced imaging techniques, including contrast-enhanced ultrasound (CEUS) and shear-wave elastography (SWE), could be used in conjunction with the Breast Imaging Reporting and Data System (BI-RADS) classification to characterize these nodules more effectively. This retrospective study aimed to evaluate the use of CEUS and SWE for the differentiation of benign from malignant small (≤ 2 cm) breast nodules.Methods: We reviewed the medical records and imaging data of 302 patients who underwent evaluation for 305 small breast nodules from November 2015 to December 2019. The BI-RADS classification values of the nodules and the results of CEUS and SWE were retrospectively analyzed; the diagnostic efficacy of these techniques was evaluated by comparison of the pathology results. Receiver operating characteristic (ROC) curves were analyzed based on the CEUS patterns and shear-wave velocity values of the nodules. The sensitivity, specificity, positive and negative predictive values, accuracies of BI-RADS, CEUS, SWE, and a combination of all three methods for identifying benign and malignant small breast nodules were investigated.Results: CEUS was effective at diagnosing malignant nodules when at least two out of nine suspicious features were present. ROC analysis revealed that the best cut-off value for SWE was at 3.7 m/s. For the diagnosis of benign breast nodules, the BI-RADS classification was reduced by one level when both, CEUS and SWE were used, and remained unchanged when either one, CEUS or SWE was used; the highest and lowest levels were of category 5 and 3, respectively. Furthermore, when using the combined method, 75.8% (91/120) of small breast nodules with a BI-RADS category 4A classification avoided the need for coarse needle biopsies.Conclusions: CEUS and SWE can be used as auxiliary methods for clarifying BI-RADS classification of the breast nodules, and a combination of these techniques may provide more diagnostic efficacy for identifying malignancy in small breast nodules.Trial registration: Retrospectively registered.

scholarly journals Efficacy of contrast-enhanced ultrasonography and shear-wave elastography in conjunction with BI-RADS classification for diagnosis of small breast nodules

2020 ◽  
Author(s):  
Yan Shen ◽  
Jie He ◽  
Miao Liu ◽  
Jiaojiao Hu ◽  
Yonglin Wan ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Receiver Operating Curve ◽  
Maximum Diameter ◽  
Diagnostic Efficacy ◽  
Predictive Values ◽  
Small Breast ◽  
Contrast Enhanced ◽  
Receiver Operating

Abstract Background: Identification of malignancy in small breast nodules can be difficult using conventional methods, especially in patients with dense breast tissue. Advanced imaging techniques, including contrast-enhanced ultrasound (CEUS) and shear-wave elastography (SWE), could be used in conjunction with Breast Imaging Reporting and Data System (BI-RADS) classification to characterize these nodules more effectively. This study aimed to evaluate the use of CEUS and SWE for the differentiation of benign and malignant small breast nodules (maximum diameter ≤ 2 cm).Methods: This retrospective study reviewed the imaging data of 302 patients who underwent evaluation for 305 small breast nodules from November 2015 to December 2019. BI-RADS classification of nodules and the results of CEUS and SWE were retrospectively analyzed; the diagnostic efficacy of these techniques was evaluated by comparison with pathology results. Receiver operating characteristic curves were analyzed based on the CEUS patterns and shear-wave velocity values of nodules. The sensitivities, specificities, positive and negative predictive values, and accuracies of BI-RADS, CEUS, SWE, and a combination of all three methods for identifying benign versus malignant small breast nodules were investigated.Results: CEUS was effective in diagnosing malignant nodules when at least two of the nine suspicious features were present. Receiver operating curve analysis revealed that the best cut-off value for SWE was 3.7 m/s. For the diagnosis of benign breast nodules, the BI-RADS classification was reduced by one level when both CEUS and SWE data were used, and was unchanged when CEUS or SWE alone was used; the highest and lowest levels were category 5 and 3, respectively. Furthermore, when using the combined method, 75.8% (91/120) of small breast nodules with a BI-RADS category 4A did not need coarse needle biopsies.Conclusion: Both CEUS and SWE can be used as auxiliary methods for clarifying BI-RADS classification of breast nodules, and a combination of these techniques may provide improved diagnostic efficacy for identifying malignancy in small breast nodules.

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.

scholarly journals Efficacy of contrast-enhanced ultrasonography and shear-wave elastography in conjunction with BI-RADS classification for diagnosis of small breast nodules

2020 ◽  
Author(s):  
Yan Shen ◽  
Jie He ◽  
Miao Liu ◽  
Jiaojiao Hu ◽  
Yonglin Wan ◽  
...  
Keyword(s):  
Shear Wave ◽  
Breast Imaging ◽  
Shear Wave Elastography ◽  
Receiver Operating Curve ◽  
Diagnostic Efficacy ◽  
Predictive Values ◽  
Small Breast ◽  
Contrast Enhanced ◽  
Receiver Operating

Abstract Background Identification of malignancy in small breast nodules can be difficult using conventional methods, especially in patients with dense breast tissue. Advanced imaging techniques, including contrast-enhanced ultrasound (CEUS) and shear-wave elastography (SWE), may work in conjunction with Breast Imaging Reporting and Data System (BI-RADS) classification to more effectively characterize these nodules. This study aimed to evaluate the use of CEUS and SWE for differentiation of benign from malignant small (≤ 2 cm) breast nodules. Methods This retrospective study reviewed the medical records and imaging data of 302 patients who underwent evaluation for 305 small breast nodules from November 2015 to December 2019. BI-RADS classification of nodules and results from CEUS and SWE studies were retrospectively analyzed, and the diagnostic efficacy of these techniques were evaluated by comparison to pathology results. Receiver operating characteristic curves were analyzed based on CEUS patterns and shear wave velocity values of nodules. The sensitivities, specificities, positive and negative predictive values, and accuracies of BI-RADS, CEUS, SWE, and a combination of all methods for identifying benign versus malignant small breast nodules were investigated. Results CEUS was effective at diagnosing malignant nodules when at least two out of nine suspicious features were present. Receiver operating curve analysis revealed that the best cut-off value for SWE was 3.7 m/s. The BI-RADS classification of nodules was reduced by one level when both CEUS and SWE diagnosed benign BNs and was unchanged when only CEUS or SWE diagnosed benign BN, with the highest level being category 5 and the lowest level being category 3. Furthermore, when using the combined method, 75.8% (91/120) of small breast nodules with a BI-RADS category 4A classification avoided the need for coarse needle biopsies. Conclusion CEUS and SWE can be used as auxiliary methods for clarifying BI-RADS classification of BNs, and a combination of these techniques may provide more diagnostic efficacy for identifying malignancy in small breast nodules.

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