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From an administrative system, clinical experience was computed for 30 clinical faculty at Stony Brook Medicine. Experience was computed and represented in the ISF ontology using ICD9CM diagnosis codes that were mapped to MeSH. Using SPARQL, a semantic web technology for data querying, and data from a VIVO site, it was possible to connect to 257 different biomedical researchers based on published...
Computer-based medical systems play a very important role in medical applications because they can strongly support the physicians in the decision making process. The large amount of data nowadays available, although collected from high quality sources, usually contain irrelevant, redundant, or noisy information, suggesting that not all the training instances are useful for the classification task...
Computed Tomography (CT) scanners evolved from simple parallel-beam geometry into more complex fan-beam geometry. The rebinning mechanism to convert fan-beam projections to parallel-beam projections is one of the methods simplifying the reconstruction of the CT image. Various interpolation methods result in different numerical presentations and noisy textures in the reconstructed CT images. This paper...
Many primary care clinics have transitioned from paper-based record keeping to computer-based Electronic Medical Record (EMR) systems. This transition provides opportunities for computer-based data analytics in support of practice improvement and more evidence-based clinical research. Unfortunately, the data in primary care EMRs is often not readily accessible to researchers, who often have to overcome...
Current package inserts for medicines are confusing for many patients and can lead to non-compliance. To combat this problem, a readability assistance system has been designed to analyze and improve leaflets to reduce the risks for patients, such as incorrect use of medication. This assistance system is divided into 5 levels: pharmaceutical readability index, graphical package insert leaflet overview,...
Workflow management systems (WfMS) can be used to manage complex processes, such as those described by Clinical Practise Guidelines (CPG). Such processes involve a variety of stakeholders, however, frequently their interfaces are not suited to the needs of the stakeholders involved. Here we propose that WfMSs be integrated with tools to build a variety of interfaces to meet the needs of different...
This work presents a model to support medical diagnosis through the classification of abnormality normality in medical brain images, in order to help to specialist as a previous step in the brain pathology diagnosis. Our proposal was incorporated into a content-based image retrieval system, thus we developed a useful tool for radiologists. The first step produces the features vector of MR image using...
Aim: To assess spatial distribution patterns of residence addresses of postpartum women, according to risk pregnancy and obstetric outcome. Method: Descriptive geographic-spatial research. This study analysed a cohort of 1792 women living in Belo Horizonte (Brazil) and having received care during childbirth in the universitary maternity-school. The prototype SISMater-GIS was used to select the specific...
Electrocardiograms can be used for diagnosing various cardiac conditions. They are traditionally printed as a hard copy on thermal graph paper, which a clinician can then use to support the overall diagnosis. Nevertheless, as technology evolves aspects of healthcare are embracing these technological advancements. One such technology that is being accepted is the Smartphone. Lightweight, portable and...
In this paper we present the prototype of a teledentistry system to perform the remote diagnosis of oral diseases. It makes use of a particular device called intra-oral (or dental) camera properly designed to shoot video and take pictures of the inner part of the mouth. The intra-oral cameras can be connected via USB to a common PC and they are very cheap, unlike the intra-oral photography kit for...
Visible human data has been widely used in various medical research and computer science applications. We present a new application for this data: a method to classify which body segment a transverse cross section image belongs to. The labeling of the data is created with the guidance of an online body cross section tutorial. The visual properties of the images are represented using a variety of feature...
Bag-of-Visual-Words (BoVW) is a well known approach to represent images for visual recognition and retrieval tasks. This approach represents an image as a histogram of visual words and the dissimilarity between two images is measured by comparing those histograms. When performing comparisons involving a specific type of images, some visual words can be more informative and discriminative than others...
The management of data acquired in a daily basis, together with historical data kept available during variable time frames, became a practical concern to the healthcare practice. Data organized according to the DICOM (Digital Imaging and Communications in Medicine) standard contribute to this scenario, demanding solutions for storage and retrieval of metadata and images that lie beyond the customary...
Fibrin networks, formed during blood clotting, have a large and complicated structure and play a crucial role in regulating blood clot growth. Identifying and analyzing the 3D topological structure of fibrin networks using fluorescence confocal microscopy images is challenging due to their complex anatomy, and known automated methods do not seem to work well. In this paper, we present a two-stage...
Automated detection of brain pathologies from Magnetic Resonance (MR) images remains an outstanding problem. An information theoretic approach for automated segmentation of medical images called the Improved "Jump" Method (IJM) has been recently developed and validated. Here we extend this work by utilizing IJM to segment human brain MR images with multiple-sclerosis (MS) lesions in order...
Fiber tracking is a mature technique that aids neurosurgeons by providing the location of neuronal fibers in a patient's brain. Although the interactivity of tools have been typically limited, the exploitation of the parallel nature of fiber tracking is rapidly changing this landscape. The parallel environment offered by GPUs and modern CPUs enables fiber tracking to be executed very quickly on consumer-grade...
This paper describes a novel method of quantitative assessment of lung pathology derived from chest computed tomography (CT) scans in infected animal models, namely rhesus macaques. Tracking the extent of lung pathology is essential in the understanding of the natural history of infectious diseases and can be eventually used to predict prognosis and monitor response to preventative (vaccines) or therapeutic...
It has recently been demonstrated that checklists can enable significant improvements to patient safety. However, their clinical acceptance is significantly lower than expected. This is due to the lack of good support systems. Specifically, support systems are too static: this holds for paper-based support as well as for electronic systems that digitize paper-based support naively. Both approaches...
This work applies time-varying parametric power spectral density analysis to ECG and derived signals in order to discover the frequency components related to obstructive sleep apnoea. Heart rate variability signals were derived from the original ECG signals using R-R wave intervals. The power spectral densities were calculated using a parametric method across the heart rate variability frequency bands...
Management of pain in the neonatal population is one of the most challenging problems in the Neonatal Intensive Care Unit (NICU). There are many gaps in our knowledge of the optimal utilization of the techniques available to assess pain in a valid and reliable manner. Pain that is not treated may cause significant clinical complications in the newborn infant. An initial start was made in a previous...
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