Abstract:
:A quantitative graduation system based on Grey Relational Analysis is proposed to recognize fatty livers in B-scan ultrasonic images. We evaluated ultrasonography liver images from 95 subjects having fatty livers (Grade I, II, III) and 45 normal subjects, as diagnosed by an expert radiologist. In practice, ultrasonographical findings of fatty liver are based on the brightness level of the liver in comparison to the renal parenchyma. The development of a non-invasive and accurate method would be of great clinical value as an alternative to diagnosing fatty liver based on the radiologist's visual perception. In this study, we also evaluated AST and ALT liver enzymes for fatty liver having different grades. A high correlation between enzymes and Grey Relational Grades were found. The Receiver Operating Characteristic (ROC) curves were obtained and yielded satisfactory classification results using sensitivity, specificity and area under the curve for computing graduation and distinguishing fatty livers from healthy livers. With the proposed method based on Grey Relational Analysis, not only misdiagnosis caused by subjective differences in clinical evaluation will be reduced, but also the early diagnosis fatty liver and quantitative assessment of its degree will be achieved.
journal_name
J Med Systjournal_title
Journal of medical systemsauthors
Içer S,Coşkun A,Ikizceli Tdoi
10.1007/s10916-011-9724-zsubject
Has Abstractpub_date
2012-08-01 00:00:00pages
2521-8issue
4eissn
0148-5598issn
1573-689Xjournal_volume
36pub_type
杂志文章abstract::The MEGADATS pedigree plotting system, described in this paper, is designed to display a human pedigree on a graphics device such as a pen plotter. The plotting algorithm, which is order n in disk reads, where n is the number of individuals, is presented. Example plots are given, including a family with multiple mates...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF00996195
更新日期:1985-06-01 00:00:00
abstract::The main obstacles in mass adoption of cloud computing for database operations in healthcare organization are the data security and privacy issues. In this paper, it is shown that IT services particularly in hardware performance evaluation in virtual machine can be accomplished effectively without IT personnel gaining...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-013-9950-7
更新日期:2013-08-01 00:00:00
abstract::Disasters are fortunately rare occurrences. However, accurate and timely information and communication are vital to adequately prepare individual health organizations for such events. The current article investigates the health related communication and information systems for emergency management in Iran. A mixed qua...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-009-9396-0
更新日期:2011-08-01 00:00:00
abstract::In healthcare organizations, clinical workflows are executed by interdisciplinary healthcare teams (IHTs) that operate in ways that are difficult to manage. Responding to a need to support such teams, we designed and developed the MET4 multi-agent system that allows IHTs to manage patients according to presentation-sp...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-015-0375-3
更新日期:2016-02-01 00:00:00
abstract::Medication error can easily cause serious health damage to inpatients in hospital. Consequently, the whole society has to spend huge amount of extra resources for additional therapies and medication on those affected inpatients. In order to prevent medication errors, secure inpatient medication administration system i...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-011-9753-7
更新日期:2012-10-01 00:00:00
abstract::Psychophysiological response of athletes with spinal cord injurie has not been reported yet in scientific literature. The aim of this study is to examine the psychophysiological stress response of Paralympic athlete during competitive activities. We collected the following psychophysiological measurements: anxiety-tra...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-019-1188-6
更新日期:2019-02-09 00:00:00
abstract::Bone marrow smear examination is an indispensable diagnostic tool in the evaluation of hematological diseases, but the process of manual differential count is labor extensive. In this study, we developed an automatic system with integrated scanning hardware and machine learning-based software to perform differential c...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-020-01654-y
更新日期:2020-09-07 00:00:00
abstract::This study evaluates trends in efficiency among American hospital markets. A total of 6010 hospitals were identified for use in the analysis from the American Hospital Association's Annual Surveys for 1989 and 1993. Using data envelopment analysis (DEA), a longitudinal study of hospital efficiency was conducted on all...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1023/a:1020585118381
更新日期:1999-04-01 00:00:00
abstract::One of the most challenging decisions in resource allocations in hospitals is: how to allocate nursing duties on the basis of patients' needs? Patient Dependency Systems, in different forms, can be used to provide information for staffing decisions and budgetary developments. That is why Patient Dependency Systems are...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1023/a:1022609717031
更新日期:1998-08-01 00:00:00
abstract::Breast cancer is a common to females worldwide. Today, technological advancements in cancer treatment innovations have increased the survival rates. Many theoretical and experimental studies have shown that a multiple classifier system is an effective technique for reducing prediction errors. This study compared the p...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-010-9485-0
更新日期:2012-04-01 00:00:00
abstract::To reduce the frequency of errors associated with hematology specimens and requisitions arriving in the hematology laboratories of a large urban teaching hospital, an intervention was conducted to alter the behavior of the medical students, interns, residents, and board-qualified physicians who ordered the tests, comp...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF00992345
更新日期:1987-06-01 00:00:00
abstract::We determined the relevance between the TG-to-HDL-C ratio and stent restenosis. Ninety-nine patients with in-stent stenosis (ISR) who were admitted to An Zhen Hospital in Beijing between April 2014 and June 2017 were selected. At the same time, 122 patients with coronary stenosis <50% were selected. All patients were ...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-018-1119-y
更新日期:2018-11-20 00:00:00
abstract::We append two additional funders to our acknowledgments. ...
journal_title:Journal of medical systems
pub_type: 已发布勘误
doi:10.1007/s10916-018-1127-y
更新日期:2018-12-10 00:00:00
abstract::In order to improve the standard of management in hospitals and effectively control the cost of clinical treatments, this research primarily focuses on optimizing the scheduling of clinical pathways (CPs). A mathematical model for CP scheduling is constructed, and the hybrid genetic algorithm (HGA, combining a genetic...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-013-9945-4
更新日期:2013-06-01 00:00:00
abstract::This study investigates the feasibility of cardiopulmonary coupling (CPC) using home sleep monitoring system. We have designed a system to measure respiratory signals and normal-to-normal (NN) interval series in a non-contact based on air mattress. Then, CPC analysis was conducted using extracted respiratory signals a...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-017-0824-2
更新日期:2017-09-26 00:00:00
abstract::Modern medical systems undertaking the task of surveillance of patients are safety-critical systems steered by software. Such systems will bring man's life into hazard if they fail to meet patients' requirements; so, adequate reliability of the algorithms and computations used by software of such systems is a matter o...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-010-9547-3
更新日期:2012-04-01 00:00:00
abstract::This analysis investigates what patients and practitioners can do to improve their interactive communications to achieve optimal patient-centric (PC) care. One goal of this clinical practice approach is to improve patient satisfaction, compliance, and outcomes. The mutual responsibilities required of both the patients...
journal_title:Journal of medical systems
pub_type: 杂志文章,评审
doi:10.1007/s10916-008-9175-3
更新日期:2009-04-01 00:00:00
abstract::In this work, prediction of forced expiratory volume in pulmonary function test, carried out using spirometry and neural networks is presented. The pulmonary function data were recorded from volunteers using commercial available flow volume spirometer in standard acquisition protocol. The Radial Basis Function neural ...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-008-9196-y
更新日期:2009-10-01 00:00:00
abstract::This paper describes the implementation of a computerized nosocomial infection control system for a 500-bed tertiary-care teaching hospital. It is implemented on a minicomputer that uses the relational data base management system INGRES, which is marketed by Relational Technology, Inc. This system, which replaces a ma...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF02285253
更新日期:1984-10-01 00:00:00
abstract::Evidence-based medicine (EBM) is the correct use of the best evidences in clinical decision making for patient care. Hospital Information Systems (HIS) can act as a bridge between medical data and medical knowledge through context-sensitive merging and filtering of patient data, individual clinical knowledge and exter...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-012-9904-5
更新日期:2013-04-01 00:00:00
abstract::Although careful planning of surgical approach is a key for success of surgery, conventional planning and simulation tools cannot support detailed discussion. This issue is derived from the difficulty of estimating complex physical behavior of soft tissues provided by a series of surgical procedures like cutting and d...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-006-9021-4
更新日期:2006-10-01 00:00:00
abstract::Anesthesia information management systems (AIMS) are increasingly being implemented throughout the United States. However, little information exists on the implementation process for AIMS within ambulatory surgery centers (ASC). The objectives of this descriptive study are to document: 1) the phases of implementation ...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-015-0390-4
更新日期:2016-01-01 00:00:00
abstract::We studied the survival rates and the prognostic variables that corresponded to death during hospitalization in 312 AIDS CDC group IV patients in São Paulo. Discriminant analysis proved to be a good tool to perform the exploratory data analysis that guided the survival analysis groups. It selected nine variables that ...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF00996941
更新日期:1993-08-01 00:00:00
abstract::Operating systems and programming languages differ widely in their suitability for particular applications. The diversity of medical computing needs demands a diversity of solutions. Compounding this diversity if the decentralization caused by evolution of local computing systems for local needs. Relevant current tren...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF00993292
更新日期:1983-06-01 00:00:00
abstract::This paper presents automatic detection and localization of myocardial infarction (MI) using K-nearest neighbor (KNN) classifier. Time domain features of each beat in the ECG signal such as T wave amplitude, Q wave and ST level deviation, which are indicative of MI, are extracted from 12 leads ECG. Detection of MI aim...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-010-9474-3
更新日期:2012-02-01 00:00:00
abstract::Medical informatics is the science of information processing and the creation of information processing systems in medicine and health care delivery. Its methodological approach is based on the area specific applicability of a multidisciplinary theory of engineering and managing computerized information systems relate...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF00996785
更新日期:1993-04-01 00:00:00
abstract::The aim of this study was to determine whether e-learning as a new teaching methodology was acceptable for general practitioners in continuous education courses of radiology. Generally, these courses are face-to-face with the corresponding time and place limitations. To overcome these limitations, we transformed one o...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-019-1499-7
更新日期:2020-01-16 00:00:00
abstract::In the research of non-invasive cardiac coronary imaging with multi-detector CT (MDCT), it is necessary to use a standard cardiac phantom to perform the mass repetitive experiments. The standard phantom can help to investigate the regularity of a technology, and hence provide the instructions to clinic. In this study,...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-008-9247-4
更新日期:2010-06-01 00:00:00
abstract::The description is presented of the system design and implementation experience obtained while providing the data management for a case-control study involving a large number of variables. Topics concerning questionnaire design, data collection, data coding, data entry, data edit, and data storage and retrieval are di...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/BF02221868
更新日期:1984-04-01 00:00:00
abstract::A natural disaster is a consequence of a natural hazard, such as a tsunami, earthquake or volcanic eruption, affecting humans. In order to support emergency medical communication services in natural disaster areas where the telecommunications facility has been seriously damaged, an ad hoc communication network backbon...
journal_title:Journal of medical systems
pub_type: 杂志文章
doi:10.1007/s10916-010-9444-9
更新日期:2012-02-01 00:00:00