Evaluation of focal hepatic lesions with ultrasound contrast agents

Sutherland, Tom; Temple, Faye; Lee, Wai-Kit; Hennessy, Oliver

doi:10.1002/jcu.20847

Cited by 16 publications

(9 citation statements)

References 25 publications

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“…Apart from cysts, typical hemangiomas and typical presentation of metastatic lesions, the image of the focal changes in the US examinations is usually untypical ( 8 ) . The results concerning the sensitivity and specificity of contrast-enhanced US examinations are similar to those obtained in computer tomography and magnetic resonance imaging ( 9 ) .…”

Section: Introductionsupporting

confidence: 76%

Standards of the Polish Ultrasound Society – update. The liver, gallbladder and bile ducts examinations

Walas¹,

Skoczylas²,

Gierbliński

2012

J Ultrason

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Ultrasonography, which usually constitutes an initial imaging method of the gallbladder, liver and bile ducts diseases, allows for final diagnosis or determines another diagnostic step. The continuously progressing technological advancement forces to broaden the indications for ultrasound diagnostics and enables easier and more precise imaging of the tested structures. Performing the examination in accordance with current standards allows for the optimization of the sensitivity and specificity parameters of ultrasound examinations in the diagnosis of the liver, gallbladder and bile ducts pathologies as well as minimizes the probability of error-making. This article presents a recommended liver, gallbladder and bile ducts ultrasound technique which indicates an optimal positioning of the patient for the exam as well as the sites of the ultrasound transducer application. Minimum technical parameters of the apparatus have been specified with respect to the requirements of modern ultrasound techniques which enable imaging with the use of contrast agents and elastography. Furthermore, the article proposes a standard exam description containing essential patient-related data and provides required ultrasound evaluation parameters for the tested organs. Attention has been drawn to the appropriate manner of preparing the patient for the examination and the features of the tested structures have been presented. The article also contains a brief description of the liver, gallbladder and bile ducts diseases which are most often diagnosed by ultrasound examinations. Moreover, the use of elastography as well as contrast-enhanced examinations in the diagnostics of fibrosis and focal changes in the liver have been discussed. This article has been prepared on the basis of the Ultrasound Examination Standards of the Polish Ultrasound Society (2011) and updated with reference to the latest findings in pertinent literature.

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Section: Introductionsupporting

confidence: 76%

Standards of the Polish Ultrasound Society – update. The liver, gallbladder and bile ducts examinations

Walas¹,

Skoczylas²,

Gierbliński

2012

J Ultrason

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“…There are several models that describe the time evolution of the radius of the bubble. The most common are: the Rayleigh-Plesset model, the Herring-Trilling model, and the Keller-Miksis model [2,10,11]. All of these models are derived from the Navier-Stokes equation, using different simplifying assumptions [12,13].…”

Section: Introductionmentioning

confidence: 99%

Modeling the dynamics of single-bubble sonoluminescence

Vignoli¹,

Barros²,

Thomé³

et al. 2013

Eur. J. Phys.

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Sonoluminescence (SL) is the phenomenon in which acoustic energy is (partially) transformed into light. It may occur by means of many or just one bubble of gas inside a liquid medium, giving rise to the terms multi-bubble-and single-bubble sonoluminescence (MBSL and SBSL). In the last years some models have been proposed to explain this phenomenon, but there is still no complete theory for the light emission mechanism (especially in the case of SBSL). In this work, we will not address this more complicated particular issue, but only present a simple model describing the dynamical behaviour of the sonoluminescent bubble, in the SBSL case. Using simple numerical techniques within the software Matlab, we discuss solutions considering various possibilities for some of the parameters involved: liquid compressibility, superficial tension, viscosity, and type of gas. The model may be used as an introductory study of sonoluminescence in physics courses at undergraduate or graduate levels, as well as a quite clarifying example of a physical system exhibiting large nonlinearity. ‡

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“…Hepatocellular adenomas (HCA) are enhanced during arterial and venous phases from the periphery (centripetal) and become isodense during late stages [28][29][30]. Often, adenomas show a washout pattern, and central necrosis makes a differential diagnosis from malignant carcinoma difficult [29,30]. Like FNH, HCA has a similar enhancement.…”

Section: Ceus As a Diagnostic Methods For Primary Liver Neoplasmsmentioning

confidence: 99%

Contrast-Enhanced Ultrasound as a Main Radiological Diagnostic Method for Primary Liver Neoplasms and Hemangiomas

Hakobyan¹,

Gaddam²,

Ojinnaka³

et al. 2021

Cureus

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Contrast-enhanced ultrasound (CEUS) is a relatively new approach for the definitive diagnosis of focal liver lesions (FLL). The essential advantages of CEUS are affordability, absence of radiation, and negligible nephrotoxicity-making this diagnostic approach more preferable. This review includes data from 39 different research studies published during the last 10 years, selected through the MeSH strategy in PubMed.We conclude that CEUS is a promising approach for diagnosing primary liver neoplasms and it is an excellent radiological approach for children and pregnant women because of the absence of radiation and nephrotoxicity. Studies showed that CEUS is a very good approach for the differentiation of a variety of hemangiomas and for a detailed description of those findings. Therefore, CEUS is an important and progressive method for the diagnosis of liver neoplasms. The regular use of CEUS will facilitate the diagnosis of primary liver lesions.

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Evaluation of focal hepatic lesions with ultrasound contrast agents

Cited by 16 publications

References 25 publications

Standards of the Polish Ultrasound Society – update. The liver, gallbladder and bile ducts examinations

Standards of the Polish Ultrasound Society – update. The liver, gallbladder and bile ducts examinations

Modeling the dynamics of single-bubble sonoluminescence

Contrast-Enhanced Ultrasound as a Main Radiological Diagnostic Method for Primary Liver Neoplasms and Hemangiomas

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