Design of Automatic Tool for Diagnosis of Pneumonia Using Boosting Techniques

Abstract Covid-19 is today's pandemic disease and can cause the hospital crowded. Additionally, It affects the lungs and may cause pneumonia. The most popular technique for diagnosis of pneumonia is the evaluation of X-ray. However, a sufficient number of radiologists are needed to interpret the X-ray images. High rates of child deaths due to pneumonia have been encountered. Using this type of system, a diagnosis can be made quickly, and then the treatment process can be started rapidly. This study aims to diagnose pneumonia using boosting techniques by the automatic tool. With this tool, the workload of the doctors/radiologists is reduced. The boosting techniques are a family of machine learning techniques. Gradient Boosting Machine (GBM), Extreme Gradient Boosting (XGBoost), Light Gradient Boosting Machine (LightGBM), and Categorical Boosting (CatBoost) are used for the study. These techniques are chosen because of their simulation duration for modeling and convenience for real-time applications. L2 normalization and feature selection are applied to the data before applying the techniques. Random Forest Classifier is used for feature selection estimator. After the modeling, Categorical Boosting algorithm is observed as faster than the other techniques. Simulation duration is obtained as 0.7 seconds. By using this automatic tool, the user can be able to upload the desired X-ray image to the system and get the result easily from the screen without any radiologist/doctor.

Aceptabilidad del uso de dispositivos con interfaces de usuarios en la rehabilitación motora neurológica / Acceptability Of The Use Of Devices With User Interfaces In Neurological Motor Rehabilitation

Introducción: El avance de las nuevas tecnologías ha contribuido a elevar las opciones de interacción de las personas con los productos a partir del empleo de las interfaces de usuario. El uso de dispositivos con interfaces de usuario, diseñados como soportes orientados a la rehabilitación neurológica, puede potenciar y diversificar este proceso en contextos intra hospitalarios y extra hospitalarios. Objetivo: Identificar los criterios que determinan la aceptabilidad de estos dispositivos en la rehabilitación motora de pacientes con enfermedades neurológicas. Métodos: La muestra estuvo conformada por 31 pacientes del Instituto de Neurología y Neurocirugía tributarios de rehabilitación motora y un grupo control (N = 62) con sujetos sanos. Se construyó un cuestionario con 32 ítems que exploran los criterios de aceptabilidad de las interfaces de usuario. La versión final del cuestionario se obtuvo de la evaluación según criterio de expertos y el cálculo de la consistencia interna mediante el alfa de Cronbach. A los valores obtenidos durante la aplicación del cuestionario se les realizó un análisis factorial usando como método de rotación el varimax normalizado. El criterio para extracción de factores fue el método de autovalores de Scree. Resultados: La aceptabilidad del uso de dispositivos con interfaces de usuario está condicionada por tres categorías fundamentales: seguridad, expectativas y facilidad de asimilación. Conclusiones: La aceptabilidad de estos dispositivos depende de garantizar la seguridad en su uso, cumplir con las expectativas de una rehabilitación autónoma y hacer evidente y viable su facilidad de asimilación. Contar con estos criterios redunda en la obtención de requerimientos ergonómicos para el diseño de estos dispositivos(AU)

Introduction: The advance of new technologies has contributed to raising the interaction options of people with products from the use of user interfaces. The use of devices with user interfaces, designed as supports aimed at neurological rehabilitation, can enhance and diversify this process in intra-hospital and extra-hospital contexts. Objective: Identify the criteria that determine the acceptability of these devices in the motor rehabilitation of patients with neurological diseases. Methods: The sample consisted of 31 patients from the Institute of Neurology and Neurosurgery who needed motor rehabilitation and a control group (N = 62) with healthy individuals. A questionnaire with 32 items was created and it explored the acceptability criteria of user interfaces. The final version of the questionnaire was obtained from the evaluation according to expert criteria and the calculation of internal consistency using Cronbach's alpha. To the values obtained during the application of the questionnaire, there was performed a factor analysis using the normalized varimax as the rotation method. The criterion for factor extraction was the Scree eigenvalue method. Results: The acceptability of the use of devices with user interfaces is conditioned by three fundamental categories: security, expectations and ease of assimilation. Conclusions: The acceptability of these devices depends on guaranteeing safety in their use, meeting the expectations of an autonomous rehabilitation and making evident and viable their ease of assimilation. Having these criteria, results in obtaining ergonomic requirements for the design of these devices(AU)

Sistema de biofeedback para rehabilitación de marcha asistida por un exoesqueleto / Biofeedback System for Exoskeletqn Assisted Gait Rehabilitation / Sistema de biofeedback para reabilitação de marcha assistida por um exoesqueleto

Resumen Los robots proporcionan nuevas formas de terapia para pacientes con desórdenes neurológicos. Las terapias de marcha asistidas con exoesqueletos pueden incrementar la duración y la intensidad de los entrenamientos para los pacientes y reducir el esfuerzo físico del terapeuta. Sin embargo, el uso de estos dispositivos para el entrenamiento de la marcha limita la interacción física entre el terapeuta y el paciente, en comparación con la terapia manual. Una apropiada realimentación de las funciones corporales y biomecánicas en la interacción con el sistema robótico facilita la evaluación del desempeño del paciente, motivándolo en el reaprendizaje de la marcha con resultados superiores. Este artículo presenta el diseño de una interfaz de usuario para un exoesqueleto de miembros inferiores para asistencia en la marcha y en terapias de rehabilitación. Se consideraron aspectos técnicos y clínicos para proporcionar ventajas del exoesqueleto durante las terapias, estableciendo una herramienta de apoyo para la configuración, monitoreo y registro de los parámetros involucrados. Se propuso un esquema de realimentación sensorial para el paciente acerca de la actividad muscular, la presión ejercida en diferentes puntos de los pies y algunas variables biomecánicas. Finalmente, se valida la herramienta con sujetos sanos por medio de un test de usabilidad propuesto.

Abstract The inclusion of robots in rehabilitation allow advantages for generate newer therapies in neurologic disorder patients. Assistive gait therapies using robots, like exoskeletons, allow increase the time and intensity training for patients while the strenuous labor of therapist is reduced. However, the physic interaction between therapist and patient in training with robots is limited, in relation to the traditional manual therapy. An appropriated feedback of biological and biomechanics functions in the robot interaction during training provides an easier performance evaluation of the patient for the therapist. Further, biofeedback gives a motivation to the patient and encourages him for gait relearning with higher effects than conventional. This paper presents a user interface design for a lower limb exoskeleton for human gait assistance in rehabilitation. Clinical and technical criteria for increasing the advantages of the exoskeleton in therapy were considered. A biofeedback scheme about muscle activity, plantar pressure and some biomechanics variables, for the patient is proposed. Finally, a validation for this tool with healthy subjects by a usability test was carried out.

Resumo A inclusão de robôs na reabilitação fornecem vantagens que promovem novas formas de terapia em pacientes com desordens neurológicas. Terapias de marcha assistidas por exoesqueletos permitem o aumento da duração e da intensidade dos exercícios com os pacientes, reduzindo o esforço físico dos terapeutas. Não entanto, o uso desses dispositivos para o treino da marcha limita a interação física entre o terapeuta e paciente, em comparação com a terapia manual. Uma apropriada realimentação das funções corporais e biomecânicas na interação com o sistema robótico facilita a avaliação do progresso do paciente, motiva e incentiva ao paciente na reaprendizagem da marcha gerando efeitos superiores aos convencionais. Neste artigo apresenta-se o desenho de uma interface de usuário para um exoesqueleto de membros inferiores para assistência na marcha e nas terapias de reabilitação. São considerados aspectos técnicos e clínicos para fornecer maiores vantagens do exoesqueleto durante as terapias, estabelecendo uma ferramenta de suporte para configuração, monitoramento e registro dos parâmetros envolvidos. Foi proposto um sistema de realimentação sensorial para o paciente sobre a atividade muscular, a pressão em diferentes pontos dos pés e algumas variáveis biomecânicas. Finalmente, é apresentada a ferramenta de validação para indivíduos saudáveis utilizando um teste de usabilidade proposto.

Design and development of multi-modality medical image fusion and evaluation simulation system / 医疗卫生装备

Objective To design and develop a multi-modality medical image fusion and evaluation simulation system to eliminate the deficiencies of the images by different technologies.Methods The system was developed with MATLAB 2014a development platform as well as MATLAB graphical user interface and image processing toolbox.Results Common methods were realized of multi-modality medical images,and the evaluation on seven objective indicators was implemented such as entropy,mutual information,cross entropy,mean,standard deviation and etc.Conclusion The system behaves well in interactivity,practicality and extensibility,and is of great significance for clinical diagnosis as well as teaching medical image processing in specialties of biomedical engineering,medical image technology and etc.[Chinese Medical Equipment

Design and development of multi-modality medical image fusion and evaluation simulation system / 医疗卫生装备

Objective To design and develop a multi-modality medical image fusion and evaluation simulation system to eliminate the deficiencies of the images by different technologies.Methods The system was developed with MATLAB 2014a development platform as well as MATLAB graphical user interface and image processing toolbox.Results Common methods were realized of multi-modality medical images,and the evaluation on seven objective indicators was implemented such as entropy,mutual information,cross entropy,mean,standard deviation and etc.Conclusion The system behaves well in interactivity,practicality and extensibility,and is of great significance for clinical diagnosis as well as teaching medical image processing in specialties of biomedical engineering,medical image technology and etc.[Chinese Medical Equipment

Validación de movimientos de coordinación en extremidades superiores para rehabilitación virtual usando pendientes lineales / Validation coordinating movements in upper limbs for virtual rehabilitation using using slopes

El desarrollo del presente trabajo se fundamenta en la importancia de apoyar los tratamientos de Rehabilitación Motriz por medio de Tecnología Informática para beneficio de los pacientes y especialistas del área. De acuerdo a un análisis realizado de las tecnologías existentes para la Rehabilitación Motriz, se ha identificado una serie de inconvenientes que limitan su uso en algunos tratamientos y por consecuencia los pacientes no continúan o no finalizan sus terapias, en este trabajo se propone emplear una herramienta de bajo costo (sensor Microsoft Kinect) que apoye en la captura de movimientos de los puntos clave de las extremidades superiores (manos, codos y hombros) usando pendientes lineales. Así mismo, se han realizado una serie de pruebas a 21 usuarios, en donde se evaluaron sus movimientos mediante umbrales que determinaron si un ejercicio fue realizado correctamente(AU)

The development of this researckneh is based on supporting Motor Rehabilitation treatments using Information Technology for the benefit of patients and specialists in the area. According to an analysis of current technologies for Motor Rehabilitation, we have identified some disadvantages that limit their use in the treatment and therefore patients do not continue or complete their therapies, this study intends to use a tool low cost (Microsoft Kinect sensor) to support the motion capture of the key points of the upper extremities (hands, elbows and shoulders) using a slopes. Also, the tests were conducted with 21 users, the algorithm evaluated some movements, the thresholds used determined the correct exercises(AU)

Propuesta de arquitectura cliente de la aplicación de interfaz de usuario del sistema xavia ris 2. 0 / Proposal for client architecture for user interface application of systems ris xavia 2.0

El Sistema de Información Radiológica (RIS, por sus siglas en inglés) es el encargado de la gestión de la información del Departamento de Radiología en una Institución Sanitaria, así como la Gestión de los Informes médicos y la creación de listas de trabajo para equipos DICOM compatibles.1 Dicho sistema está concebido como un sistema web por las ventajas de accesibilidad que brinda la Web y el indetenible crecimiento y desarrollo de las tecnologías que la sustentan. La presente investigación tiene como objetivo proponer las tecnologías, herramientas, estructuras y finalmente la arquitectura cliente para la aplicación de Interfaz de Usuario del Sistema XAVIA RIS, acorde a las tendencias actuales del desarrollo Web(AU)

Radiological Information System is in charge of information management in the radiology department in a health institution, and the management of medical records and the creation of work lists for equipment DICOM compatible. This system is designed as a web system due to the benefits of accessibility offered by the Web and the unstoppable growth and development of technologies that support it. This research aims to propose technologies, tools, structures and ultimately the client architecture for User Interface Application of the XAVIA RIS System, according to current trends in Web development(AU)

Visualização imersiva e interação gestual com dados médicos / Immersive visualization and gestural interaction withmMedical data

As tecnologias de Realidade Virtual vêm se desenvolvendo bastante nos últimos anos e com elas a sua utilização em diversas áreas, dentre as quais, a medicina. Testes, treinamentos, e alguns tipos de tratamento que seriam complicados de serem ser feitos com abordagens tradicionais agora podem ser produzidos graças aos elementos disponíveis nas tecnologias de realidade virtual. OBJETIVO: Propor uma ferramenta de visualização volumétrica em realidade virtual que possua interação gestual e ferramentas de segmentação de imagens e que facilite o processo de análise de dados médicos. MÉTODOS: Aquisição das imagens, geração dos dados volumétricos, desenvolvimento das ferramentas de interação e desenvolvimento da interface gestual. RESULTADOS: O sistema obteve êxito na geração e visualização de dados médicos tendo bom desempenho em testes realizados na avaliação de usabilidade de sua interface gestual. CONCLUSÃO: O sistemas e mostra como uma promissora alternativa para a visualização de dados médicos em realidade virtual.

The Virtual Reality technologies have been developing greatly in recent years and with them their use in various fields, among which the medicine. Some testings, trainings, and some types of treatments that would be complicated to be made with traditional approaches can now be produced thanks to the elements available in the virtual reality technologies. OBJECTIVE: To propose a volume visualization tool in virtual reality that has gestural interaction and image segmentation tools and facilitates the process of analysis of medical data. METHODS: Image acquisition volumetric data generation, development of the interaction tools and development of the gestural interface. RESULTS: The system was successful in the generation and visualization of medical data, having good performance in usability tests of its gestural interface. CONCLUSION: The system is a promising alternative for viewing medical data in virtual reality.

Simulación de queratotomía arqueada por medio de un modelo de elementos finitos: aplicación de una plataforma de interacción entre Matlab y COMSOL Multiphysics / Simulation of arcuate keratotomy using the finite elements method: an application of an interaction platform of Matlab and COMSOL Multiphysics

La queratotomía radial es uno de los métodos quirúrgicos empleados para corregir los defectos ópticos de las personas; ésta ha sido ampliamente estudiada, e incluso se han propuesto nomogramas que permiten predecir los resultados de algunas geometrías; a pesar de esto, las experiencias postoperatorias han demostrado que la tasa de éxito de las cirugías es baja, ya que se presenta hipocorrección o hipercorrección de los pacientes, obligándolos a usar ayudas externas o llevándolos a someterse nuevamente a una cirugía. Teniendo en cuenta esto, se desarrolló una plataforma para simular estas cirugías por medio del método de elementos finitos, empleando los programas Matlab y COMSOL Multiphysics. Por medio de la rutina creada es posible obtener un modelo de la córnea preoperatoria que se asemeje tanto en geometría, como en condiciones de esfuerzo, a la córnea real; adicionalmente, es posible adaptar la geometría de la queratotomía radial que desee simularse. Se realizaron simulaciones para una cirugía compuesta de dos arcos y otra de tres arcos; los resultados obtenidos demuestran la capacidad de la simulación numérica para avanzar en el desarrollo de la cirugía refractiva, al ser posible estudiar parámetros, que de forma experimental, son difíciles de tener en cuenta, como la geometría inicial de la córnea y la edad del paciente, lo cual influye en el módulo de elasticidad del material; por otra parte, se encontró que esta aplicación es una potencial herramienta para los oftalmólogos, pues tiene la capacidad de predecir los resultados postoperatorios.

Radial keratotomy is used as a methodology to correct refractive errors. This surgery has been widely studied and also nomograms have been proposed in order to predict postoperative results of some types of keratotomies. Despite these eff orts, surgical evidence has shown a low success rate because of undercorrection or overcorrection, forcing patients to use spectacles or contact lenses, after surgery, or even leads them to a new procedure. A simulation platform was developed in an attempt to study these surgeries, employing the finite element method, using Matlab and COMSOL Multiphysics simultaneously. The routine is capable of simulate the preoperative cornea in terms of geometry and stress configuration. Also, it could be adapted to simulate any kind of radial keratotomy LASIK and PRK surgeries. Simulations for a double arc keratotomy and a triple arc keratotomy were developed. Results provide evidence of the capability of the platform to improve knowledge of refractive surgery taking into account the possibility to analyze the effect produced by corneal geometry and patient age, which aff ects the elastic modulus of the material, parameters difficult to analyze in an in-vivo experiment. Besides, it demonstrates the potential of the program as a tool for the surgeon to plan refractive surgery.

The constitute and maintenance of TYCO PB840 ventilator / 中国医学装备

Ventilator is the mechanism of the implementation of artificial ventilation and its function is respiratory support, respiratory therapy and oxygenation improving. It is an important life-support equipment in life-saving first aid. Mainly for emergency transporters, recovery room, emergency department, the ICU pediatric, adult ICU and other departments in the hospital. It used to support high-risk, life-sustaining equipment. The failure is mainly concentrated on the two parts of the gas line and electric circuit. The daily maintenance and preventive maintenance are an essential part for protection breathing machine to work properly.

CpG Islands Detector: a Window-based CpG Island Search Tool

CpG is the pair of nucleotides C and G, appearing successively, in this order, along one DNA strand. It is known that due to biochemical considerations CpG is relatively rare in most DNA sequences. However, in particular subsequences, which are a few hundred to a few thousand nucleotides long, the couple CpG is more frequent. These subsequences, called CpG islands, are known to appear in biologically more significant parts of the genome. The ability to identify CpG islands along a chromosome will therefore help us spot its more significant regions of interest, such as the promoters or 'start' regions of many genes. In this respect, I developed the CpG islands search tool, CpG Islands Detector, which was implemented in JAVA to be run on any platform. The window-based graphical user interface of CpG Islands Detector may facilitate the end user to employ this tool to pinpoint CpG islands in a genomic DNA sequence. In addition, this tool can be used to highlight potential genes in genomic sequences since CpG islands are very often found in the 5' regions of vertebrate genes.

To design the coding User Interface of dlCOM SR based on PACS and Introduce The Coding Function / 中国实用内科杂志

Objective To design the coding User Interface of DICOM SR based on PACS and introduce the coding func- tion.Methods 1 000Mb trunk net was adopted in PACS and 100Mb was exchanged on tabletop.To exploit SQLServ- er2000 database and take the PingYingJiaJia and WuBiJiaJia as Chinese input methods.To exploit optical disk edition of ACR and ICD-10 coding system to construct coding database.To adopt the system of DICOM SR explored ourselves. Results User Interface referred to the rule and definition of DICOSR.To make report disposal and case management and statistics query and imagine teaching and HIS connection in one windows and can manipulate each other.ACR and ICD-10 coding key were set in right of diagnosis report interface.Hitting ACR and ICD-10 coding key would spring the relating coding window.Conclusion User Interface of DICOM SR was friendly.It was powerful and utility.

How to Deal with Medical Narratives based on Controlled Natural Language Operated by an Ontology / 대한의료정보학회지

OBJECTIVE: Medical narratives entry is a major issue to be solved in developing an electronic medical record system operating in practice, as they are, in large part, described in a free-text format. The issue can be dealt with in three aspects: to improve the reusability by structuring medical narratives, to support clinical pragmatics in medical fields, and to reduce the burden of data entry. With the aspects having in mind, this paper purports to present an ontological method for better way of medical narratives entry. METHODS: We developed an ontology for which medical knowledge is structurally represented. Then we can enter medical narrative texts with commands of the controlled natural language operable on the ontology model. RESULTS: Many theoretical studies on free-text entry were reviewed, based on which an authoring and editing tool for natural language description operable on the ontology model has been developed and tested. The performance of the tool is satisfactory within the limit of the domain models we developed here. CONCLUSION: The results of this paper are contributive for clinicians to make an easy entry of medical narratives as far as the ontology model covers their knowledge domain. It is also expected that the cost in recording medical narratives might be considerably reduced and data quality can be improved.

Clinical Nursing Process Model using a Database Linking System / 대한의료정보학회지

The purpose of this research was to develop the clinical nursing process model through linked nursing diagnoses, related factors, defining characteristics, nursing interventions, nursing activities and nursing outcomes and was to make graphic user interface using the clinical nursing process model. The linked clinical record sets in the developed database system were arranged in reverse order statistically in order to construct the clinical nursing process model from the patients' database tables concerning nursing diagnoses, related factors, defining characteristics, nursing interventions, nursing activities and nursing outcomes. The arranged clinical nursing record sets were suggested as the nursing process model in a general surgery clinical unit. The nursing process model of a general surgery clinical unit could be used for its accessibility as an indicator for other medical departments. The most available clinical nursing process data were presented on only one graphic user interface window to be able to select the nursing process easily for nurses in a general surgery clinical unit. Graphic user interface programming was designed to show all related factors, defining character stics, nursing interventions, nursing activities and nursing outcomes based on a nursing diagnosis which have unique properties. Using the clinical nursing process model in this database system, it was also possible to construct the electronic nursing record system.

Survey User Satisfaction in Aspect of User Interactions With an Order Communication System in Seoul National University Hospital / 대한의료정보학회지

To survey user satisfaction, correlates of satisfaction, and self reported evaluation about order communication system in Seoul National University Hospital, we performed this study. We met 63 users who were involved in hospital's digitalization committee and surveyed the Questionnare for User Interaction Satisfaction(QUIS) as evaluation tool and self-evaluation about OCS. We received 55 replies out of 63 users. The users were generally satisfied with order communication system(mean scale = 5.8 on a 1 to 9 scale). QUIS scored highest in the area of screen design and lowest in the area of system capability. Overall user satisfaction was most highly correlated with task-flow. Users noticed retrieval of laboratory result as the most useful aspect and worried about system stability and system response time. But, system response time was weekly correlated with overall user satisfaction. In SNUH, user showed that satisfaction with order communication system was good. Satisfaction was more correlated with perceptions about order communication system's efficiency than with order communication system response time.

Survey User Satisfaction in Aspect of User Interactions With an Order Communication System in Seoul National University Hospital / 대한의료정보학회지

To survey user satisfaction, correlates of satisfaction, and self reported evaluation about order communication system in Seoul National University Hospital, we performed this study. We met 63 users who were involved in hospital's digitalization committee and surveyed the Questionnare for User Interaction Satisfaction(QUIS) as evaluation tool and self-evaluation about OCS. We received 55 replies out of 63 users. The users were generally satisfied with order communication system(mean scale = 5.8 on a 1 to 9 scale). QUIS scored highest in the area of screen design and lowest in the area of system capability. Overall user satisfaction was most highly correlated with task-flow. Users noticed retrieval of laboratory result as the most useful aspect and worried about system stability and system response time. But, system response time was weekly correlated with overall user satisfaction. In SNUH, user showed that satisfaction with order communication system was good. Satisfaction was more correlated with perceptions about order communication system's efficiency than with order communication system response time.