The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In non-invasive ultrasound (US) imaging, diagnosis of Nonalcoholic Fatty Liver Disease (NAFLD) often depends on the subjective judgment of the image brightness and speckle uniformity. In order to assist the differentiation between the NAFLD and the normal liver in US diagnoses, quantitative tissue characterization based on acoustic backscattering behaviors are performed using high-frequency US system...
Liver biopsy is the “gold standard” for evaluating liver disorders, but controversies over the potential risk of complications and patient discomfort still exist. Using a 21G fine needle, we developed a new biopsy procedure, fine needle aspirating and cutting (FNAC). Our procedure obtains enough tissue for pathological examination and meanwhile, reduces the risk of biopsy complications. The present...
The high acoustic intensity in HIFU often results in bubble production, either through acoustic cavitation or boiling. Both these are believed to be a primary contributor to tissue necrosis. Some HIFU protocols rely on the evidence of cavitation as a strong indicator of tissue lesions. Cavitation is normally associated with hyperechoic regions (dasiabright uppsila) in ultrasound B-mode image feedback...
In using ultrasound echo strain to estimate temperature for monitoring HIFU thermal therapy, block matching algorithms are used to estimate the displacement over two image frames. However, due to the image distortion and artifacts over frames, the displacement will be estimated with outliers which will seriously bias echo strain estimation. This paper introduces a novel model-based algorithm to constrain...
The high power intensities in HIFU often result in bubble production, either through cavitation or boiling, which are believed to be a primary contributor to tissue necrosis Bubbles are associated with the appearance of bright hyperechoic regions in ultrasound B-mode images are observed from the bubbles. As they are often the only changes observed during treatment on tissue, some HIFU protocols rely...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.