scholarly journals A comparison of manually populated radiology information system digital radiographic data with electronic dose management systems

2020 ◽  
Vol 93 (1111) ◽  
pp. 20200055
Author(s):  
Nathan Dickinson ◽  
Matthew Dunn

Objective: To assess the accuracy and agreement of radiology information system (RIS) kerma–area product (KAP) data with respect to automatically populated dose management system (DMS) data for digital radiography (DR). Methods: All adult radiographic examinations over 12 months were exported from the RIS and DMS at three centres. Examinations were matched by unique identifier fields, and grouped by examination type. Each centre’s RIS sample completeness was calculated, as was the percentage of the RIS examination KAP values within 5% of their DMS counterparts (used as an accuracy metric). For each centre, the percentage agreement between the RIS and DMS examination median KAP values was computed using a Bland–Altman analysis. At two centres, up to 42.5% of the RIS KAP units entries were blank or invalid; corrections were attempted to improve data quality in these cases. Results: Statistically significant intersite variation was seen in RIS data accuracy and the agreement between the uncorrected RIS and DMS median KAP data, with a Bland–Altman bias of up to 11.1% (with a −31.7% to 53.9% 95% confidence interval) at one centre. Attempts to correct invalid KAP units increased accuracy but produced worse agreement at one centre, a slight improvement at another and no significant change in the third. Conclusion: The RIS data poorly represented the DMS data. Advances in knowledge: RIS KAP data are a poor surrogate for DMS data in DR. RIS data should only be used in patient dose surveys with an understanding of its limitations and potential inaccuracies.

2014 ◽  
Vol 29 (4) ◽  
pp. 312-326 ◽  
Author(s):  
Alan R Dennis ◽  
Binny M Samuel ◽  
Kelly McNamara

Information system maintenance is an important aspect of information system development, especially in systems that provide dynamic content, such as Web-based systems and Knowledge Management Systems (KMS). Design for Maintenance (DFM) is an approach that argues that maintenance effort should be considered during the design of information systems in addition to the usual system design considerations. This research examines how the design of links among knowledge documents in a KMS affects both their maintenance and use. We argue that providing links among knowledge documents increases the cost of maintenance because when a document changes, the documents that link to and from that document are more likely to need changes. At the same, linking knowledge documents makes it easier to locate useful knowledge and thus increases use. We examine this tension between use and maintenance using 10 years of data from a well-established KMS. Our results indicate that as the number of links among documents increases, both maintenance effort and use for these documents increase. Our analyses suggest two DFM principles for dynamic content in practice. First, knowledge coupling (i.e., linking) to documents internal to the KMS rather than sources external to the KMS better balances maintenance effort and use. Second, designing small, knowledge cohesive documents (e.g., 250-350 words) leads to the best balance between maintenance effort and use.


2012 ◽  
Vol 3 (5) ◽  
pp. 13 ◽  
Author(s):  
María del Mar Villafranca ◽  
Francisco Lamolda ◽  
Antonio Manuel Montufo ◽  
Lucía Pérez ◽  
Belén Prados

<p>The SIALH project aims to set up the Information System of the Alhambra, considered as tool for the knowledge, management and dissemination of the Monument, considered World Heritage by UNESCO. Based on a Geographic Information System (GIS), SIALH integrates thematic databases, process management systems and electronic records management systems on a common framework. The methodology used in the project follows the standard Metrica v3 for software developments. SIALH is built using free software and ensures interoperability. In addition to software development, SIALH involves other projects such as the geocoding of the Alhambra, new maps and orthophotos and the publication of augmented reality of the Alhambra.</p>


Author(s):  
Michael J. Mills ◽  
John X. Nguyen ◽  
Ben Himelhoch ◽  
Abdelouahid Souala ◽  
Anthony Khashola ◽  
...  

1999 ◽  
Vol 12 (S1) ◽  
pp. 91-92 ◽  
Author(s):  
Harry T. Garland ◽  
Brian J. Cavanaugh ◽  
Robert Cecil ◽  
Bernard L. Hayes ◽  
Sarah Lavoie ◽  
...  

2010 ◽  
Vol 26-28 ◽  
pp. 457-461
Author(s):  
Min Peng ◽  
Jun Tang

This paper describes the basic theory of SOA architecture and the related technologies to achieve SOA, presents a simplified information system architecture design based on SOA architecture, one by one analyzes the function of each layer, and in detail designs the object-oriented layer, SOA service bus, finally analyzes the SOA application in enterprise information management systems and its prospect.


Author(s):  
Katherine C Hocking ◽  
Catriona R Wright ◽  
Utku Alhun ◽  
Frances Hughes ◽  
Vartan J Balian ◽  
...  

Objectives: The aim of this paper is to assess the acute haemorrhage rate in patients who had CT head investigation out-of-hours with and without trauma and compare the rates of haemorrhage between warfarin and DOACs, at a busy teritary teaching hospital. Methods: All CT heads performed between January 2008 and December 2019 were identified from the radiology information system (RIS) at Sheffield Teaching Hospitals (STH), with the requesting information being available from January 2015. The clinical information was assessed for the mention of trauma or anticoagulation and the reports were categorised into acute and non-acute findings. Results: Between 2008 and 2019 the number of scans increased by 63%, with scans performed out of hours increasing by 278%. Between 2015 and 2019, the incidence of acute ICH was similar over the 5 year period, averaging at 6.9% and ranging from 6.1 to 7.6%. The rate of detection of acute haemorrhage following trauma was greater in those not anticoagulated (6.8%), compared with patients on anticoagulants such as warfarin (5.2%) or DOACs (2.8%). Conclusions: Over 12 years, there has been a significant increase in the number of CT heads performed at STH. The rate of ICH has remained steady over the last 5 years indicating a justified increase in imaging demand. However the incidence of ICH in patients prescribed DOACs is lower than the general population and those on warfarin. Advances in knowledge: : This finding in a large centre should prompt discussion of the risk of bleeding with DOACs in relation to CT head imaging guidelines.


1993 ◽  
Vol 6 (1) ◽  
pp. 16-24 ◽  
Author(s):  
M. Wiltgen ◽  
G. Gell ◽  
E. Graif ◽  
S. Stubler ◽  
A. Kainz ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document