Abstract：
:We defined, implemented and tested two new methods for irreversible compression of angiocardiographic still images: brightness error limitation (BEL) and pseudo-gradient adaptive brightness and contrast error limitation (PABCEL). The scan path used to compress the digital images is based on the Peano-Hilbert plane-filling curve. The compression methods limit, for each pixel, the brightness errors introduced when approximating the original image (i.e. the difference between the values of corresponding pixels as grey levels). Additional limitations are imposed to the contrast error observed when considering along the scan path consecutive pixels of both the original and the reconstructed image. After previous testing on angiocardiographic images selected as clinically significant from 35 mm films, we enlarged our experiment to a set of 38 coronary angiograms digitally acquired. BEL and PABCEL methods were experimented according to several values of the implied thresholds. Up to a compression ratio of 9:1 for the BEL method and 10:1 for the PABCEL method, no deterioration of the reconstructed images were detected by human observers. After a visual evaluation, we performed a quantitative evaluation. The visualization of pseudo-colour difference images showed the capability of BEL and PABCEL for preserving the most significant clinical details of the original images. For comparison, we applied the JPEG (joint photographic experts group) image-compression standard to the same set of images. In this case, pseudo-colour difference images showed a homogeneous distribution of errors on the image surface. Quantitative compression results obtained by testing the different methods are comparable, but, unlike JPEG, BEL and PABCEL methods allow the user to keep under his direct control the maximum error allowed at each single pixel of the original image. These different behaviors are confirmed by the values obtained for the considered numerical quality quantifiers.
journal_name
Int J Med Informjournal_title
International journal of medical informaticsauthors
Portoni L,Combi C,Pozzi G,Pinciroli F,Fritsch JP,Brennecke Rdoi
10.1016/s1386-5056(97)00063-4subject
Has Abstractpub_date
1997-10-01 00:00:00pages
185-204issue
3eissn
1386-5056issn
1872-8243pii
S1386-5056(97)00063-4journal_volume
46pub_type
杂志文章abstract：:During the past 2-3 decades, development work on Medical Devices focused on improving their functionality (device control, signal analysis, pattern recognition and classification). At present, the dominant user requirement is information integration. This requires interconnectivity and interoperability of devices and ...
journal_title：International journal of medical informatics
pub_type： 杂志文章,评审
doi：10.1016/s1386-5056(98)00002-1
更新日期：1998-02-01 00:00:00
abstract：OBJECTIVE:The adoption rate of electronic health record (EHR) systems in South Korea has continuously increased. However, in contrast to the situation in the United States (US), where there has been a national effort to improve and standardize EHR interoperability, no consensus has been established in South Korea. The ...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2017.02.009
更新日期：2017-05-01 00:00:00
abstract：:The explosive increase in the power of computers has enabled the creation of fast, interactive 3D environments, sometimes called virtual reality (VR). This technology, often associated with arcade games, is increasingly being used for more serious applications. This paper describes research showing transfer of skills ...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/s1386-5056(00)00100-3
更新日期：2000-12-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Computer aided simulations are useful to support the physician in many steps of the surgical activity, but also in pre-surgical patient classification and in post-surgical diagnosis and treatment decisions. At a broader level, computerized technologies and infrastructures permeate every aspect ...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2018.12.008
更新日期：2019-03-01 00:00:00
abstract：PURPOSE:Health workers have numerous concerns about hospital IS (HIS) usage. Addressing these concerns requires understanding the system attributes most important to their satisfaction and productivity. Following a recent HIS implementation, our objective was to identify priorities for managerial intervention based on ...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2015.10.010
更新日期：2016-02-01 00:00:00
abstract：PURPOSE:Despite the amount of health information available online, there are several barriers that limit the Internet from being adopted as a source of health information. The purpose of this study was to identify individual skill-related problems that users experience when accessing the Internet for health information...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2011.10.005
更新日期：2012-01-01 00:00:00
abstract：:Technology and equipment are often identified as contributors to adverse medical events, however technology is seldom the focal point of investigation as a source of medical error or adverse event. It is often seen as both a means of reducing error (e.g., automated drug dispensing machines) or as a major contributing ...
journal_title：International journal of medical informatics
pub_type： 杂志文章,评审
doi：10.1016/j.ijmedinf.2006.05.046
更新日期：2007-06-01 00:00:00
abstract：:To date there have been fewer than a dozen studies on the nature of, and contributory factors in, critical incidents (CI) in anaesthesia. The first of these, by Cooper and colleagues, showed that the vast majority of their CI involved human error [1]. Most recently, the on-going Australian Incident Monitoring Study (A...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/s1386-5056(97)00087-7
更新日期：1997-11-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Diabetic foot is one of the important complications of diabetes, which is occurred due to the destructive parameters in different anatomical sites of feet. Management and monitoring of these parameters are very important to decrease or prevent foot ulcers. We aimed to develop a smart wearable d...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2020.104343
更新日期：2021-02-01 00:00:00
abstract：BACKGROUND:Predicting insulin-induced postprandial hypoglycemic events is critical for the safety of type 1 diabetes patients because an early warning of hypoglycemia facilitates correction of the insulin bolus before its administration. The postprandial hypoglycemic event counts can be lowered by reducing the size of ...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2019.03.008
更新日期：2019-06-01 00:00:00
abstract：:Telehealth refers to the integration of information, telecommunication, human-machine interface technologies and health technologies to deliver health care, to promote the heath status of the people and to create health. The Malaysian Telehealth Application will, on completion, provide every resident of the country an...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2003.11.023
更新日期：2004-03-31 00:00:00
abstract：BACKGROUND:Medication errors in hospital discharge summaries have the potential to cause serious harm to patients. These errors are generally associated with manual transcription of medications between medication charts and discharge summaries. Studies also show junior doctors are more likely to contribute to discharge...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2009.09.002
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVE:Children are an important portion of the population of the territories covered by Primary Health Care (PHC), with needs and characteristics that can be managed at this level of care. Therefore, it is essential that professionals working in PHC be capable of providing child care. The aim of this study was to e...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2019.06.014
更新日期：2019-09-01 00:00:00
abstract：INTRODUCTION:This article describes the evaluation of a prototype speech-input interface to an anaesthesia patient record, conducted in a full-scale anaesthesia simulator involving six doctor-nurse anaesthetist teams. OBJECTIVE:The aims of the experiment were, first, to assess the potential advantages and disadvantage...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2007.08.007
更新日期：2008-07-01 00:00:00
abstract：PURPOSE:To subjectively and objectively compare an accessible interactive electronic library using Moodle with lectures for urology teaching of medical students. METHODS:Forty consecutive fourth-year medical students and one urology teacher were exposed to two teaching methods (4 weeks each) in the form of problem-bas...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2014.11.001
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:The "m" in mHealth is often thought of as the ability to receive health information and monitor behaviors on the go. Little is known about how people actually use mobile vs. traditional access methods and if access method affects engagement and health outcomes. METHODS:This study examines the 3-month outcom...
journal_title：International journal of medical informatics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ijmedinf.2014.01.002
更新日期：2014-05-01 00:00:00
abstract：BACKGROUND:EMR system can provide three main types of benefits: it can solve the logistical organization problems associated with paper systems; it can improve the quality of professionals' clinical decisions; and it can improve physicians' return on their practices by reducing the cost of managing clinical information...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2014.06.003
更新日期：2014-08-01 00:00:00
abstract：OBJECTIVE:We aim to 1) design an evaluation framework to examine the accuracy of automatic privacy auditing tools, 2) apply the evaluation method at a hospital to validate the performance of an auditing tool that uses a machine learning algorithm to automate user access auditing, and 3) recommend further improvements i...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2020.104123
更新日期：2020-06-01 00:00:00
abstract：:To evaluate the idea of a multifunctional mobile pen computer to support information processing tasks of health care professionals we carried out a field study. On a tablet-sized mobile pen computer we set up a health professional workstation, MEDIAS/WIN, with most of the application systems that are presently used by...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/s1386-5056(98)00170-1
更新日期：1999-05-01 00:00:00
abstract：PURPOSE:When barcode medication administration (BCMA) is implemented nurses are required to integrate not only a new set of procedures or artifacts into everyday work, but also an orientation to medication safety itself that is sometimes at odds with their own. This paper describes how the nurses' orientation (the Prac...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2013.01.009
更新日期：2013-12-01 00:00:00
abstract：OBJECTIVE:To carry out a systematic review of studies assessing the effects of chemotherapy prescription clinical decision-support systems (CDSSs) on the chemotherapy process. METHODS:Articles published in English before May 1, 2017 and indexed in the PubMed and Embase databases were reviewed systematically. Studies t...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2018.11.004
更新日期：2019-02-01 00:00:00
abstract：BACKGROUND:With age reaction time, coordination and cognition tend to deteriorate, which may lead to gait impairments, falls and injuries. To reduce this problem in elderly and to improve health, well-being and independence, regular balance and strength exercises are recommended. However, elderly face strong barriers t...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2012.11.015
更新日期：2013-05-01 00:00:00
abstract：:This study evaluated the impact of telemedicine technology on the provision of neurosurgical health services. We focused on the differences between the use of real time audio-visual teleconferencing and teleradiology versus conventional telephone consultations in the referral of neurosurgical patients from a large dis...
journal_title：International journal of medical informatics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s1386-5056(01)00161-7
更新日期：2001-07-01 00:00:00
abstract：:Today, the economic and regulatory environment, involving activity-based and prospective payment systems, healthcare quality and risk analysis, traceability of the acts performed and evaluation of care practices, accounts for the current interest in clinical and hospital information systems. The structured gathering o...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2004.07.003
更新日期：2005-03-01 00:00:00
abstract：OBJECTIVE:This study presents a conceptual model to investigate the healthcare technology management (HTM) competency required by healthcare IS professionals and the impact of such competency in gaining strategic advantages through information technology (IT) by development of partnerships with people from different di...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2008.05.007
更新日期：2009-02-01 00:00:00
abstract：INTRODUCTION:Unplanned 30-day hospital readmission account for roughly $17 billion in annual Medicare spending. Many factors contribute to unplanned hospital readmissions and multiple models have been developed over the years to predict them. Most researchers have used insurance claims or administrative data to train a...
journal_title：International journal of medical informatics
pub_type： 杂志文章,meta分析,多中心研究
doi：10.1016/j.ijmedinf.2015.09.003
更新日期：2015-12-01 00:00:00
abstract：PURPOSE:Providing access to patient information is the key factor in nurses' adoption of a Nursing Information System (NIS). In this study the requirements for information quality and the perceived quality of information are investigated. A teaching hospital in the Netherlands has developed a NIS as a module of the Hos...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2012.07.006
更新日期：2012-10-01 00:00:00
abstract：:Exposure to technologies is becoming more prevalent in healthcare technologies. Few strategies have been developed that work reliably to successfully implement information technologies. Information technology enables, but does not guarantee organizational change. A theoretical model has been developed identifying seve...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/s1386-5056(99)00037-4
更新日期：1999-12-01 00:00:00
abstract：:One of the fundamental rights of patients is to have their privacy protected by health care organizations, so that information that can be used to identify a particular individual is not used to reveal sensitive patient data such as diagnoses, reasons for ordering tests, test results, etc. A common practice is to remo...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2004.05.002
更新日期：2004-08-01 00:00:00
abstract：:After reporting on characteristics, structure and contents of the specialised informatics-based curriculum for medical informatics (MI) at the University of Heidelberg/University of Applied Sciences Heilbronn, the paper describes the development during the last 5 years, and in particular a complementary health care or...
journal_title：International journal of medical informatics
pub_type： 杂志文章
doi：10.1016/j.ijmedinf.2003.11.011
更新日期：2004-03-18 00:00:00
