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Healthcare Informatics Research

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https://www.readbyqxmd.com/read/28261533/cost-effective-mobile-based-healthcare-system-for-managing-total-joint-arthroplasty-follow-up
#1
Marina Bitsaki, George Koutras, Hansjoerg Heep, Christos Koutras
OBJECTIVES: Long-term follow-up care after total joint arthroplasty is essential to evaluate hip and knee arthroplasty outcomes, to provide information to physicians and improve arthroplasty performance, and to improve patients' health condition. In this paper, we aim to improve the communication between arthroplasty patients and physicians and to reduce the cost of follow-up controls based on mobile application technologies and cloud computing. METHODS: We propose a mobile-based healthcare system that provides cost-effective follow-up controls for primary arthroplasty patients through questions about symptoms in the replaced joint, questionnaires (WOMAC and SF-36v2) and the radiological examination of knee or hip joint...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261532/validation-of-the-delone-and-mclean-information-systems-success-model
#2
Adebowale I Ojo
OBJECTIVES: This study is an adaptation of the widely used DeLone and McLean information system success model in the context of hospital information systems in a developing country. METHODS: A survey research design was adopted in the study. A structured questionnaire was used to collect data from 442 health information management personnel in five Nigerian teaching hospitals. A structural equation modeling technique was used to validate the model's constructs. RESULTS: It was revealed that system quality significantly influenced use (β = 0...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261531/new-aging-index-using-signal-features-of-both-photoplethysmograms-and-acceleration-plethysmograms
#3
Jae Mok Ahn
OBJECTIVES: Acceleration plethysmograms (APGs) are obtained by taking the second derivative of photoplethysmograms (PPGs) and are noninvasive circulatory signals related to risk factors for atherosclerosis with age. There has been growing interest in the development of mobile devices to collect and analyze PPG single features for ambulatory health monitoring. The present study aimed to extract a new feature from the morphologies of APG and PPG signals to classify the dominant indices related to the pulsatile volume of blood in tissue according to age...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261530/applying-of-decision-tree-analysis-to-risk-factors-associated-with-pressure-ulcers-in-long-term-care-facilities
#4
Mikyung Moon, Soo-Kyoung Lee
OBJECTIVES: The purpose of this study was to use decision tree analysis to explore the factors associated with pressure ulcers (PUs) among elderly people admitted to Korean long-term care facilities. METHODS: The data were extracted from the 2014 National Inpatient Sample (NIS)-data of Health Insurance Review and Assessment Service (HIRA). A MapReduce-based program was implemented to join and filter 5 tables of the NIS. The outcome predicted by the decision tree model was the prevalence of PUs as defined by the Korean Standard Classification of Disease-7 (KCD-7; code L89(*))...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261529/application-of-queueing-theory-to-the-analysis-of-changes-in-outpatients-waiting-times-in-hospitals-introducing-emr
#5
Kyoung Won Cho, Seong Min Kim, Young Moon Chae, Yong Uk Song
OBJECTIVES: This research used queueing theory to analyze changes in outpatients' waiting times before and after the introduction of Electronic Medical Record (EMR) systems. METHODS: We focused on the exact drawing of two fundamental parameters for queueing analysis, arrival rate (λ) and service rate (µ), from digital data to apply queueing theory to the analysis of outpatients' waiting times. We used outpatients' reception times and consultation finish times to calculate the arrival and service rates, respectively...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261528/action-research-on-development-and-application-of-internet-of-things-services-in-hospital
#6
Arum Park, Hyejung Chang, Kyoung Jun Lee
OBJECTIVES: Services based on the Internet of Things (IoT) technologies have emerged in various business environments. To enhance health service quality and maximize benefits, this study applied an IoT technology based on NFC and iBeacon as an omni-channel service for patient care in hospitals. METHODS: Application of the IoT technology based on NFC and iBeacon was conducted in a general hospital during August 2015 through June 2016, and the development and evaluation results were aligned to an action research framework...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261527/development-and-evaluation-of-a-nutritional-smartphone-application-for-making-smart-and-healthy-choices-in-grocery-shopping
#7
Desiree López, Michelle Torres, Jammy Vélez, Jhensen Grullon, Edwin Negrón, Cynthia M Pérez, Cristina Palacios
OBJECTIVES: This study developed a smartphone nutritional application (app) for making smart and healthy choices when purchasing food in grocery stores and tested its feasibility, usability, satisfaction and acceptability. METHODS: "MyNutriCart" was developed following the ADDIE (analysis, design, development, implementation, and evaluation) model. The goals of the app were to improve food selection when purchasing foods in the grocery stores based on a pre-defined budget, to improve dietary patterns based on the Dietary Guidelines for Americans, and to improve weight status...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261526/wearable-devices-in-medical-internet-of-things-scientific-research-and-commercially-available-devices
#8
REVIEW
Mostafa Haghi, Kerstin Thurow, Regina Stoll
OBJECTIVES: Wearable devices are currently at the heart of just about every discussion related to the Internet of Things. The requirement for self-health monitoring and preventive medicine is increasing due to the projected dramatic increase in the number of elderly people until 2020. Developed technologies are truly able to reduce the overall costs for prevention and monitoring. This is possible by constantly monitoring health indicators in various areas, and in particular, wearable devices are considered to carry this task out...
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28261525/sharing-clinical-big-data-while-protecting-confidentiality-and-security-observational-health-data-sciences-and-informatics
#9
EDITORIAL
Rae Woong Park
No abstract text is available yet for this article.
January 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895968/correction-methods-of-hematoxylin-and-eosin-image-information-acquisition-and-optimization-in-confocal-microscopy
#10
Woong Bae Yoon, Hyunjin Kim, Kwang Gi Kim, Yongdoo Choi, Hee Jin Chang, Dae Kyung Sohn
[This corrects the article on p. 238 in vol. 22, PMID: 27525165.].
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895967/medical-representatives-intention-to-use-information-technology-in-pharmaceutical-marketing
#11
Eun-Seon Kwak, Hyejung Chang
OBJECTIVES: Electronic detailing (e-detailing), the use of electronic devices to facilitate sales presentations to physicians, has been adopted and expanded in the pharmaceutical industry. To maximize the potential outcome of e-detailing, it is important to understand medical representatives (MRs)' behavior and attitude to e-detailing. This study investigates how information technology devices such as laptop computers and tablet PCs are utilized in pharmaceutical marketing, and it analyzes the factors influencing MRs' intention to use devices...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895966/acceptability-of-service-targets-for-ict-based-healthcare
#12
Eun Min Jeon, Hwa Jeong Seo
OBJECTIVES: In order to adopt and activate telemedicine it is necessary to survey how medical staff, who are providers of medical service, and consumers, who are the service targets, perceive information and communication technology (ICT)-based healthcare service. METHODS: This study surveyed the awareness and acceptability of ICT-based healthcare by involving service targets, specifically workers and students living in the Seoul and Gyeonggi regions who are consumers of healthcare service...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895965/confirmation-of-expectations-and-satisfaction-with-hospital-information-systems-a-nursing-perspective
#13
Haleh Ayatollahi, Mostafa Langarizadeh, Habib Chenani
OBJECTIVES: This study aimed to compare nurses' satisfaction with, and expectations of, hospital information systems in two teaching hospitals. METHODS: This was a survey study, which was completed in 2014. The potential participants were 267 nurses who worked in two teaching hospitals and used the same hospital information system. Data were collected using two questionnaires. Both questionnaires were examined in terms of content validity and reliability. RESULTS: The results showed that, for a majority of nurses, their expectations of the system were not met in either hospital...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895964/half-fan-based-intensity-weighted-region-of-interest-imaging-for-low-dose-cone-beam-ct-in-image-guided-radiation-therapy
#14
Boyeol Yoo, Kihong Son, Rizza Pua, Jinsung Kim, Alexander Solodov, Seungryong Cho
OBJECTIVES: With the increased use of computed tomography (CT) in clinics, dose reduction is the most important feature people seek when considering new CT techniques or applications. We developed an intensity-weighted region-of-interest (IWROI) imaging method in an exact half-fan geometry to reduce the imaging radiation dose to patients in cone-beam CT (CBCT) for image-guided radiation therapy (IGRT). While dose reduction is highly desirable, preserving the high-quality images of the ROI is also important for target localization in IGRT...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895963/evaluation-of-semi-automatic-segmentation-methods-for-persistent-ground-glass-nodules-on-thin-section-ct-scans
#15
Young Jae Kim, Seung Hyun Lee, Chang Min Park, Kwang Gi Kim
OBJECTIVES: This work was a comparative study that aimed to find a proper method for accurately segmenting persistent ground glass nodules (GGN) in thin-section computed tomography (CT) images after detecting them. METHODS: To do this, we first applied five types of semi-automatic segmentation methods (i.e., level-set-based active contour model, localized region-based active contour model, seeded region growing, K-means clustering, and fuzzy C-means clustering) to preprocessed GGN images, respectively...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895962/texture-analysis-of-supraspinatus-ultrasound-image-for-computer-aided-diagnostic-system
#16
Byung Eun Park, Won Seuk Jang, Sun Kook Yoo
OBJECTIVES: In this paper, we proposed an algorithm for recognizing a rotator cuff supraspinatus tendon tear using a texture analysis based on a histogram, gray level co-occurrence matrix (GLCM), and gray level run length matrix (GLRLM). METHODS: First, we applied a total of 57 features (5 first order descriptors, 40 GLCM features, and 12 GLRLM features) to each rotator cuff region of interest. Our results show that first order statistics (mean, skewness, entropy, energy, smoothness), GLCM (correlation, contrast, energy, entropy, difference entropy, homogeneity, maximum probability, sum average, sum entropy), and GLRLM features are helpful to distinguish a normal supraspinatus tendon and an abnormal supraspinatus tendon...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895961/automated-detection-algorithm-of-breast-masses-in-three-dimensional-ultrasound-images
#17
Ji-Wook Jeong, Donghoon Yu, Sooyeul Lee, Jung Min Chang
OBJECTIVES: We propose an automatic breast mass detection algorithm in three-dimensional (3D) ultrasound (US) images using the Hough transform technique. METHODS: One hundred twenty-five cropped images containing 68 benign and 60 malignant masses are acquired with clinical diagnosis by an experienced radiologist. The 3D US images are masked, subsampled, contrast-adjusted, and median-filtered as preprocessing steps before the Hough transform is used. Thereafter, we perform 3D Hough transform to detect spherical hyperplanes in 3D US breast image volumes, generate Hough spheres, and sort them in the order of votes...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895960/automatic-four-chamber-segmentation-using-level-set-method-and-split-energy-function
#18
Ho Chul Kang, Jeongjin Lee, Juneseuk Shin
OBJECTIVES: In this paper, we present an automatic method to segment four chambers by extracting a whole heart, separating the left and right sides of the heart, and spliting the atrium and ventricle regions from each heart in cardiac computed tomography angiography (CTA) efficiently. METHODS: We smooth the images by applying filters to remove noise. Next, the volume of interest is detected by using k-means clustering. In this step, the whole heart is coarsely extracted, and it is used for seed volumes in the next step...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895959/incidence-of-adult-in-hospital-cardiac-arrest-using-national-representative-patient-sample-in-korea
#19
Yuri Choi, In Ho Kwon, Jinwoo Jeong, Junyoung Chung, Younghoon Roh
OBJECTIVES: This study analyzed the incidence and characteristics of in-hospital cardiac arrest (IHCA) in Korea based on a sample group of patients that is representative of the population. METHODS: The incidence of IHCA in adults was extracted from HIRA-NIS-2009, a sample of all patients using medical services in Korea. IHCA patients were analyzed according to gender, age, type of medical institute, and classification under the 6th revision of the Korean Standard Classification of Diseases (KCD-6)...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27895958/factors-associated-with-the-timeliness-of-electronic-nursing-documentation
#20
Meejung Ahn, Mona Choi, YoungAh Kim
OBJECTIVES: To investigate the factors associated with the timeliness of electronic nursing documentation using the entry time on the Electronic Medical Record (EMR) system. METHODS: As a retrospective study, data were extracted from January 1 to February 28, 2014 from a hospital EMR system and a nurses' personnel information system. The timeliness of instances of nursing documentation was categorized into 'timely' or 'untimely' according to whether the entry time was time-stamped within the working hours during each day, evening, or night shift...
October 2016: Healthcare Informatics Research
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