In a clinical perspective better methods to identify subjects at increased cardiovascular risk are needed. Atherosclerotic plaques of the carotid arteries with low echogenicity have been related to future clinical events. However, better methods to assess plaque characteristics are needed as well as more information on the variability and change over time of echogenicity in relation to occurren...

Intraoral ultrasonography has been widely employed for the preoperative assessment of tumor margins due to its capability evaluate depth invasion (DOI) and thickness (TT). Recently, a novel ultrasonographic technique, ultra-high frequency ultrasound (UHFUS) increasingly applied study oral lesions. This evaluates potential application intraoral UHFUS assess DOI TT parameters squamous cell carcin...

BACKGROUND Domestic dogs and cats are very well known to develop chronic hepatic diseases, including hepatic lipidosis and cirrhosis. Ultrasonographic examination is extensively used to detect them. However, there are still few reports on the use of the ultrasound B-mode scan in correlation with histological findings to evaluate diffuse hepatic changes in rodents, which represent the most impor...

Ultrasonography is the main imaging method for the workup of thyroid nodules. However, interobserver agreement reported for echogenicity and echotexture is quite low. The aim of this study was to perform quantitative measurements of the degree of echogenicity and heterogeneity of thyroid nodules, to develop an objective and reproducible method to stratify these features to predict malignancy.A ...

Objective: Graves’ disease and Hashimoto’s thyroiditis are the most common causes of hyper and hypothyroidism, respectively. Differentiation of these 2 diseases, if the patient is euthyroid, may sometimes be extremely difficult on the basis of clinical and laboratory findings. The purpose of this study was to determine the sensitivity and specificity of gray scale sonography in differentiat...

BACKGROUND There has been no study assessing cranial ultrasound (cUS) scans in newborn infants born in equatorial Africa. OBJECTIVE To assess the cUS scans of apparently well newborn term Ugandan infants and to correlate the findings with perinatal data. METHODS An observational study of apparently healthy postnatal ward term Ugandan infants at Mulago Hospital, Makerere University Hospital,...

Empirical mode decomposition (EMD) is an adaptive method for decomposing a signal into intrinsic mode functions (IMFs).This study explored using EMD of ultrasound imaging for gain-independent measurements on tissue echogenicity. The IMF-based echogenicity ratio (IER) was proposed using the first (C1) and second IMFs (C2) of ultrasound radiofrequency data. Experiments on lipid phantoms were cond...

PURPOSE To measure the size of the Achilles tendons in congenital clubfeet using ultrasonography before and after percutaneous tenotomy. METHODS 15 boys and 12 girls (39 feet) aged one to 11 (mean, 5) months with idiopathic clubfeet underwent percutaneous tenotomy (Ponseti method). The size of each Achilles tendon was measured ultrasonographically by a single radiologist before and after surg...

Apart from the degree of stenosis, plaque morphology has emerged in recent years as an important contributory factor in stroke risk. Ultrasound studies have shown that hypo- or anechogenic plaques carry a higher risk of cerebrovascular events than echogenic ones. Similarly, heterogeneous plaques presenting a complex pattern of echogenicity in ultrasound have also been more frequently associated...