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.
Breast cancer is the most common non-skin cancer and the second leading cause of cancer-related death in women here in the United States. Mammography is the current standard clinical imaging modality for breast cancer screening and diagnosis, and mammographic breast density (i.e. the percentage of the entire breast volume that is taken up by dense glandular tissue) has been shown to be a biomarker...
By the means of finite element analysis (FEa), biomechanical behaviors of human mandible have been widely studied over decades. Many different types of simulation of muscle forces have been employed in studies to increase the reality of mastication environment. Among these studies, Cruz et al (2003)'s calculation of muscle forces was well accepted. However, these simulations have not been verified...
Despite excessive expenditures by governments and private corporations, the toxicological effects of many chemicals and human relevant compounds are not well understood. Current methods for screening the toxicological effects of these chemicals are expensive, time consuming, and have been proven to produce results that must be interpreted with caution when extrapolating to human bioavailability and...
Specialized training in breast imaging is critical to ensure high diagnostic accuracy of the radiologists who read screening mammograms in their daily practice. Previously, we proposed a framework for an individualized computer-aided mammography training system as a time-efficient and effective support for radiology education. The system utilizes the concept of user modeling to adapt the training...
Microsoft Silverlight PivotViewer is a web service architecture that provides fluid access to massive image databases using digital zoom image technology. The Pivot interface models some aspects of human vision, with the ability both to perform a global scan and to rapidly focus on the finest details. The inclusion of many levels of metadata in an XML file makes it possible for clients to rapidly...
A telemedicine network with retina cameras and automated quality control, physiological feature location, and lesion / anomaly detection is a low-cost way of achieving broad-based screening for diabetic retinopathy (DR) and other eye diseases. In the process of a routine eye-screening examination, other non-image data is often available which may be useful in automated diagnosis of disease. In this...
Staphylococcus aureus is an opportunistic human pathogen and a primary cause of nosocomial infections. Its biofilm forming capability is an adaptation strategy utilized by many species of bacteria to overcome stressful environmental conditions and provides both resistance to antimicrobial treatments and protection from the host immune system. This paper addresses a growing demand for an objective,...
Preterm labor is the second leading cause of neonatal mortality and leads to a myriad of complications like delayed development and cerebral palsy. Currently, there is no way to accurately predict preterm labor, making its prevention and treatment virtually impossible. While there are some at-risk patients, over half of all preterm births do not fall into any high-risk category. This study seeks to...
Prostate segmentation is an essential step in developing any non-invasive Computer-Assisted Diagnostic (CAD) system for the early diagnosis of prostate cancer using Magnetic Resonance Images (MRI). In this paper, a novel framework for 3D segmentation of the prostate region from Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI) is proposed. The framework is based on a Maximum the Posteriori (MAP)...
Cancer is the second leading cause of death in the United States. It is believed that many people develop cancers in their lifetime but the immune system kills these cells without the need for outside treatments. In cancer progression, however, tumor cells may evade the immune system by a mechanism that is not fully understood. Soluble fibrin (sFn), a marker for disseminated intravascular coagulation,...
As with any physiological process, breathing behaviors can be represented by time-varying signals. Speech breathing, or breathing behavior that supports speech production, is one particular type of breathing that can be difficult and time-consuming to analyze visually. In this paper, we introduce a novel cycle identification algorithm using MATLAB programming that automatically identifies breath cycles...
Osteoarthritis is a degenerative joint disease, which causes the degradation of articular cartilage and subchondral bone. The disease may result in mechanical abnormalities of the joints, including weight bearing joints such as the knees and hips. In this work, we analyze gait biomechanical data using neural network models to predict the level of joint deterioration and the level of pain in participants...
Constant monitoring of a variety of physiological signals is vitally important in numerous clinical care settings. This signals are not perfect, however, and can be corrupted or lost. The loss of a signal can be devastating to the patient, as the physician may lose key information to understanding disease processes, or worse, be unaware of the patient's status in either surgery or the ICU. This study...
In this paper, we show that domain-optimized text detection in biomedical images is important for boosting text extraction recall via off-the-shelf OCR engines. Methodologically, we contrast OCR performance when processing raw biomedical images, compared to preprocessing those images, and performing OCR on detected image text regions only. To quantify OCR extraction results, we rely on a gold standard...
Real-time MRI has the potential to significantly improve intraoperative surgical processes. However, development of these technologies is complicated by the need for software tools that support task-oriented visualization of 2D and 3D datasets, enable flexible real-time image processing pathways, and interface with proprietary scanner hardware. Developing such tools requires substantial software engineering...
Primary ciliary dyskinesia (PCD) is a disorder characterized by sinopulmonary disease arising from ciliary motion defects in respiratory epithelia. An essential first step in the diagnostic evaluation of PCD is the use of high-speed videomicroscopy to analyze ciliary beat patterns in nasal epithelia biopsies. This includes a quantitative assessment of ciliary beat frequency (CBF, where CBF of <;...
Non-contact, non-invasive monitoring of hemodynamic parameters has long been deemed to be important to medical monitoring in a variety of environments. Radio Frequency Impedance Interrogation (RFII) measures hemodynamic function via resonance frequency coupling to a hydrophilic protein molecule. We examined the use of RFII for hemodynamic monitoring of human subjects during Lower Body Negative Pressure...
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.