scholarly journals Oral and IV Contrast Enhanced Ultrasonography of the digestive tract – a useful completion of the B-mode examination: a literature review and an exhaustive illustration through images

2015 ◽  
Vol 17 (1) ◽  
pp. 62 ◽  
Author(s):  
Cristian Neciu ◽  
Radu Badea ◽  
Liliana Chiorean ◽  
Alexandru Florin Badea ◽  
Iulian Opincaru
Keyword(s):  
Digestive Tract ◽  
Personal Experience ◽  
Clinical Context ◽  
Lesion Area ◽  
Qualitative And Quantitative ◽  
Grey Scale ◽  
Contrast Enhanced ◽  
The Us ◽  
Contrast Enhanced Ultrasonography

Contrast enhanced ultrasonography, using IV and/or oral/rectal contrast agents, represents a technical development of the US method, which has proved its applicability in the qualitative and quantitative assessment of the normal and pathological circulatory bed, as well as of the digestive lumen. The use of microbubbles and harmonics opens a new horizon in the detection and characterization of the inflammatory and tumoral conditions of the digestive tract. The interpretation of the data requires corroboration with the grey scale aspect of the examined lesion/area, as well as with the clinical context of the case and the results of other diagnosis techniques. The purpose of this paper is to review the main applications of CEUS in digestive tract pathology by analyzing the significant literature and guidelines in the light of our personal experience and demonstrating it through suggestive images.

scholarly journals Greyscale and contrast enhanced ultrasonography for characterization of gastric malignant tumors

2018 ◽  
Vol 1 (1) ◽  
pp. 8 ◽  
Author(s):  
Cristian Vasile Neciu ◽  
Ion Cosmin Puia ◽  
Alexandru Florin Badea ◽  
Mihai Socaciu ◽  
Emil Botan ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Malignant Tumors ◽  
Arterial Phase ◽  
Stromal Tumors ◽  
Gastric Tumors ◽  
Variable Pattern ◽  
Grey Scale ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography

Aims: To evaluate the utility of grey scale ultrasonography (US) and contrast enhanced ultrasonography (CEUS) for characterization of malignant gastric tumors.Material and methods: The study was conducted prospectively and it included a number of 30 patients with malignant gastric tumors diagnosed through upper tract endoscopy and biopsy: 25 adenocarcinomas, 3 lymphomas, and 2 stromal tumors. All the patients were examined by US, followed immediately by CEUS, using both oral and intravenous contrast agents. CEUS assessed the dynamics of the contrast agent during the arterial phase and the venous phase. The distribution characteristics of the contrast agent inside the region of interest (ROI) were also evaluated. Twenty four patients underwent surgery.Results: Adenocarcinomas presented heterogeneous enhancement with variable pattern, followed by a delayed wash-out in almost all of the situations. Lymphomas presented a variable pattern, intensity and homogeneity of the enhancement, followed by delayed wash-out. Stromal tumors showed early arterial intense and homogenous enhancement followed by moderate wash-out in venous phase.Conclusions: Grey scale US and CEUS are useful methods in characterizing gastric tumors and contribute to a more adequate evaluation of the lesions. The dynamics of the contrast agent may be suggestive for the anatomopathological nature of the tumor. Larger studies will be necessary in order to determine thepractical value of the method.

scholarly journals Focal Pancreatic Lesions: Role of Contrast-Enhanced Ultrasonography

Diagnostics ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 957
Author(s):  
Tommaso Vincenzo Bartolotta ◽  
Angelo Randazzo ◽  
Eleonora Bruno ◽  
Pierpaolo Alongi ◽  
Adele Taibbi
Keyword(s):  
Personal Experience ◽  
Blood Pool ◽  
Focal Lesions ◽  
Dynamic Information ◽  
Blood Pool Contrast Agent ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography ◽  
Cystic Pancreatic Lesions

The introduction of contrast-enhanced ultrasonography (CEUS) has led to a significant improvement in the diagnostic accuracy of ultrasound in the characterization of a pancreatic mass. CEUS, by using a blood pool contrast agent, can provide dynamic information concerning macro- and micro-circulation of focal lesions and of normal parenchyma, without the use of ionizing radiation. On the basis of personal experience and literature data, the purpose of this article is to describe and discuss CEUS imaging findings of the main solid and cystic pancreatic lesions with varying prevalence.

scholarly journals Use of Contrast-Enhanced Ultrasonography for the Characterization of Tumor Thrombi in Seven Dogs

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1613
Author(s):  
Alessia Cordella ◽  
Pascaline Pey ◽  
Nikolina Linta ◽  
Manuela Quinci ◽  
Marco Baron Toaldo ◽  
...  
Keyword(s):  
Color Doppler ◽  
Case Series ◽  
Arterial Phase ◽  
Retrospective Case ◽  
Primary Tumors ◽  
Contrast Enhanced ◽  
Venous Phase ◽  
Contrast Enhanced Ultrasonography ◽  
Tumor Thrombi

Tumors of adrenal and thyroid glands have been associated with vascular invasions—so-called tumor thrombi, both in humans and dogs. The detection and characterization of venous thrombi is an important diagnostic step in patients with primary tumors for both surgical planning and prognosis. The aim of this study was to describe the use of contrast-enhanced ultrasonography (CEUS) for the characterization of tumor thrombi. Dogs with tumor thrombus who underwent bi-dimensional ultrasound (B-mode US) and CEUS were included. Seven dogs were enrolled in this retrospective case series. On B-mode US, all thrombi were visualized, and vascular distension and thrombus-tumor continuity were seen in three and two cases, respectively. On color Doppler examination, all thrombi were identified, seemed non-occlusive and only two presented vascularity. On CEUS, arterial-phase enhancement and washout in the venous phase were observed in all cases. Non-enhancing areas were identified in the tumor thrombi most likely representing non-vascularized tissue that could potentially be embolized in the lungs after fragmentation of the tumor thrombi. On the basis of these preliminary study, CEUS appeared to be useful for the characterization of malignant intravascular invasion.

scholarly journals Contrast-enhanced ultrasonography features of hepatobiliary neoplasms in cats

2019 ◽  
Vol 186 (10) ◽  
pp. 320-320 ◽  
Author(s):  
Tommaso Banzato ◽  
Silvia Burti ◽  
Giuseppe Rubini ◽  
Riccardo Orlandi ◽  
Paolo Bargellini ◽  
...  
Keyword(s):  
Bile Duct ◽  
Diagnostic Accuracy ◽  
Large Range ◽  
Liver Parenchyma ◽  
Qualitative And Quantitative ◽  
Hepatocellular Carcinomas ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography ◽  
Malignant Lesions

BackgroundContrast-enhanced ultrasonography (CEUS) features of primary hepatobiliary neoplasms have been reported in dogs but no information is available in cats.MethodsQualitative and quantitative features of bile duct adenomas (BDAs, n=20), bile duct carcinomas (BDCs, n=16), and hepatocellular carcinomas (HCCs, n=8) are described in 44 cats.ResultsThere was an overlap in CEUS qualitative features between different histotypes, both in wash-in and wash-out phases. Distinction between different neoplasms based only on the CEUS qualitative features was not possible. At peak of enhancement, the BDAs, BDCs and HCCs showed a large range of echogenicities, from hypoenhancement to hyperenhancement, in comparison to the liver parenchyma. Eight of 20 BDAs showed inhomogeneous hyperenhancement during wash-in, which is a feature reported as typical of malignant lesions in dogs. BDC had a significantly faster wash-in compared with both BDA and HCC but the diagnostic accuracy of all the included quantitative variables was only moderate. No significant differences in the wash-out quantitative features of BDA and BDC were evident.ConclusionThere is poor evidence that CEUS may be used to distinguish between different primary hepatobiliary neoplasms in cats.

Contrast-enhanced ultrasonography (CEUS) and time/intensity curves for the characterization of small renal masses

2019 ◽  
Vol 18 (1) ◽  
pp. e897-e898
Author(s):  
A. Pili ◽  
E. Bertelli ◽  
S. Sforza ◽  
A. Mari ◽  
R. Campi ◽  
...  
Keyword(s):  
Small Renal Masses ◽  
Renal Masses ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography

scholarly journals Various aspects of Contrast-enhanced Ultrasonography in splenic lesions – a pictorial essay

2020 ◽  
Vol 22 (3) ◽  
Author(s):  
Elena Simona Ioanitescu ◽  
Ionel Copaci ◽  
Eugenia Mindrut ◽  
Otilia Motoi ◽  
Adriana Mercan Stanciu ◽  
...  
Keyword(s):  
Splenic Tissue ◽  
Evolutionary Potential ◽  
Systemic Involvement ◽  
Abdominal Organs ◽  
Contrast Enhanced ◽  
Traumatic Lesions ◽  
Pictorial Essay ◽  
Contrast Enhanced Ultrasonography ◽  
Line Imaging

Spleen pathology is rare in comparison with other abdominal organs, but often its lesions occur in complex pathological contexts, with systemic involvement. Although the lesions could be discretely symptomatic, their evolutionary potential might be severe. Conventional B-mode and Doppler ultrasound are the first-line imaging methods in spleen assessment, but frequently they do not allow the characterization of focal splenic abnormalities. Contrast-enhanced ultrasound (CEUS) is fast, safe, easy to perform, non-irradiating and can be used in patients with renal failure. By highlighting splenic macro and micro-vascularization, CEUS significantly increases the detection rate and allows the characterization of vascular (infarction, ischemia, thrombosis) and traumatic lesions, with high diagnostic accuracy. Additionally, ectopic splenic tissue can be identified with high accuracy. The method improves both the detection and characterization of splenic nodules, but some limitations still remain, especially in the differential diagnosis between malignant and some benign lesions. This article aims to portray aspects of CEUS imaging in various splenic pathologies using clinical examples from our experience and to review the CEUS contribution in the diagnosis of splenic lesions.

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