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Dive into the research topics where Oliver J. Bott is active.

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Featured researches published by Oliver J. Bott.


medical informatics europe | 2001

Strategic information management plans: the basis for systematic information management in hospitals

Alfred Winter; Elske Ammenwerth; Oliver J. Bott; Birgit Brigl; Anke Buchauer; Stefan Gräber; A Grant; A Häber; Wilhelm Hasselbring; Reinhold Haux; A. Heinrich; H Janssen; I Kock; Oliver-S. Penger; Hans-Ulrich Prokosch; A. Terstappen; Andreas Winter

Information management in hospitals is a complex task. In order to reduce complexity, we distinguish strategic, tactical, and operational information management. This is essential, because each of these information management levels views hospital information systems from different perspectives, and therefore uses other methods and tools. Since all these management activities deal only in part with computers, but mainly with human beings and their social behavior, we define a hospital information system as a sociotechnical subsystem of a hospital. Without proper strategic planning it would be a matter of chance, if a hospital information system would fulfil the information strategies goals. In order to support strategic planning and to reduce efforts for creating strategic plans, we propose a practicable structure.


international conference of the ieee engineering in medicine and biology society | 2008

The INCA System: A Further Step Towards a Telemedical Artificial Pancreas

Enrique J. Gómez; María Elena Hernando Pérez; T. Vering; M. Rigla Cros; Oliver J. Bott; Gema García-Sáez; P. Pretschner; Eulàlia Brugués Brugués; Oliver Schnell; C. Patte; Joachim Bergmann; R. Dudde; A. de Leiva

Biomedical engineering research efforts have accomplished another level of a ldquotechnological solutionrdquo for diabetes: an artificial pancreas to be used by patients and supervised by healthcare professionals at any time and place. Reliability of continuous glucose monitoring, availability of real-time programmable insulin pumps, and validation of safe and efficient control algorithms are critical components for achieving that goal. Nevertheless, the development and integration of these new technologies within a telemedicine system can be the basis of a future artificial pancreas. This paper introduces the concept, design, and evaluation of the ldquointelligent control assistant for diabetes, INCArdquo system. INCA is a personal digital assistant (PDA)-based personal smart assistant to provide patients with closed-loop control strategies (personal and remote loop), based on a real-time continuous glucose sensor (Guardian RT, Medtronic), an insulin pump (D-TRON, Disetronic Medical Systems), and a mobile general packet radio service (GPRS)-based telemedicine communication system. Patient therapeutic decision making is supervised by doctors through a multiaccess telemedicine central server that provides to diabetics and doctors a Web-based access to continuous glucose monitoring and insulin infusion data. The INCA system has been technically and clinically evaluated in two randomized and crossover clinical trials showing an improvement on glycaemic control of diabetic patients.


Methods of Information in Medicine | 2007

Towards New Scopes: Sensor-enhanced Regional Health Information Systems - Part 1: Architectural Challenges

Oliver J. Bott; Michael Marschollek; Klaus-Hendrik Wolf; Reinhold Haux

OBJECTIVES To analyze utilization of sensor technology in telemonitoring and home care and to discuss concepts and challenges of sensor-enhanced regional health information systems (rHIS). METHODS The study is based upon experience in sensor-based telemedicine and rHIS projects, and on an analysis of HIS-related journal publications from 2003 to 2005 conducted in the context of publishing the IMIA Yearbook of Medical Informatics. RESULTS Health-related parameters that are subject to sensor-based measurement in home care and telemonitoring are identified. Publications related to telemonitoring, home care and smart houses are analyzed concerning scope and utilization of sensor technology. Current approaches for integrating sensor technology in rHIS based on a corresponding eHealth infrastructure are identified. Based on a coarse architecture of home care and telemonitoring systems ten challenges for sensor-enhanced rHIS are identified and discussed: integration of home and health telematic platforms towards a sensor-enhanced telematic platform, transmission rate guarantees, ad hoc connectivity, cascading data analysis, remote configuration, message and alert logistic, sophisticated user interfaces, unobtrusiveness, data safety and security, and electronic health record integration. CONCLUSIONS Utilization of sensor technology in health care is an active field of research. Currently few research projects and standardization initiatives focus on general architectural considerations towards suitable telematic platforms for establishing sensor-enhanced rHIS. Further research finalized by corresponding standardization is needed. Part 2 of this paper will present experiences with a research prototype for a sensor-enhanced rHIS telematic platform.


Methods of Information in Medicine | 2008

virtX – Evaluation of a Computer-based Training System for Mobile C-arm Systems in Trauma and Orthopedic Surgery

Oliver J. Bott; Michael Teistler; Christopher Duwenkamp; Markus Wagner; Michael Marschollek; Maik Plischke; B. W. Raab; Klaus Michael Stürmer; Dietrich Peter Pretschner; K. Dresing

OBJECTIVES Operating room personnel (ORP) operating mobile image intensifier systems (C-arms) need training to produce high quality radiographs with a minimum of time and X-ray exposure. Our study aims at evaluating acceptance, usability and learning effect of the CBT system virtX that simulates C-arm based X-ray imaging in the context of surgical case scenarios. METHODS Prospective, interventional study conducted during an ORP course with three groups: intervention group 1 (training on a PC using virtX), and 2 (virtX with a C-arm as input device), and a control group (training without virtX) - IV1, IV2 and CG. All participants finished training with the same exercise. Time needed to produce an image of sufficient quality was recorded and analyzed using One-Way-ANOVA and Dunnett post hoc test (alpha = .05). Acceptance and usability of virtX have been evaluated using a questionnaire. RESULTS CG members (n = 21) needed more time for the exercise than those of IV2 (n = 20): 133 +/- 55 vs. 101 +/- 37 sec. (p = .03). IV1 (n = 12) also performed better than CG (128 +/- 48 sec.), but this was not statistically significant. Seventy-nine participants returned a questionnaire (81% female, age 34 +/- 9 years, professional experience 8.3 +/- 7.6 years; 77% regularly used a C-arm). 83% considered virtX a useful addition to conventional C-arm training. 91% assessed virtual radiography as helpful for understanding C-arm operation. CONCLUSIONS Trainees experienced virtX as substantial enhancement of C-arm training. Training with virtX can reduce the time needed to perform an imaging task.


Medical Imaging 2003: Visualization, Image-Guided Procedures, and Display | 2003

Virtual tomography: a new approach to efficient human-computer interaction for medical imaging

Michael Teistler; Oliver J. Bott; Jochen Dormeier; Dietrich Peter Pretschner

By utilizing virtual reality (VR) technologies the computer system virtusMED implements the concept of virtual tomography for exploring medical volumetric image data. Photographic data from a virtual patient as well as CT or MRI data from real patients are visualized within a virtual scene. The view of this scene is determined either by a conventional computer mouse, a head-mounted display or a freely movable flat panel. A virtual examination probe is used to generate oblique tomographic images which are computed from the given volume data. In addition, virtual models can be integrated into the scene such as anatomical models of bones and inner organs. virtusMED has shown to be a valuable tool to learn human anaotomy and to udnerstand the principles of medical imaging such as sonography. Furthermore its utilization to improve CT and MRI based diagnosis is very promising. Compared to VR systems of the past, the standard PC-based system virtusMED is a cost-efficient and easily maintained solution providing a highly intuitive time-saving user interface for medical imaging.


The Journal of Pediatrics | 2011

Acceptance and Adverse Events of the 2009 H1N1 Vaccination in Immunosuppressed Pediatric Liver Transplant Recipients

Imeke Goldschmidt; Eva Doreen Pfister; Malte Becker; Sebastian Häckl; Oliver J. Bott; Ulrich Baumann

A retrospective analysis of H1N1 vaccination in 127 children at ≥ 1 year after liver transplantation found only moderate acceptance (56%) of the vaccination. Physical adverse events were of moderate severity, but frequent (74%). Protection against infection was good, with infection rates of 4% in vaccinated children versus 25% in nonvaccinated children.


International Journal of Medical Informatics | 2007

HIS modelling and simulation based cost-benefit analysis of a telemedical system for closed-loop diabetes therapy.

Oliver J. Bott; Ina Hoffmann; Joachim Bergmann; Nathalie Gusew; Oliver Schnell; Enrique J. Gómez; M. Elena Hernando; Patrick Kosche; Christian von Ahn; Dirk C. Mattfeld; Dietrich Peter Pretschner

OBJECTIVES INCA (Intelligent Control Assistant for Diabetes) is an EU funded project aimed at improving diabetes therapy by creating a personal closed-loop system interacting with telemedical remote control. This study aims at identifying and applying suitable methods for a cost-benefit analysis from the perspective of the payor for health services. METHODS For cost analysis MOSAIK-M was used, a method and tool for health information systems analysis and design. Two MOSAIK-M models were created describing conventional insulin pump based diabetes care (CSII), and INCA based diabetes care. Both models were parameterized with costs and simulated to determine yearly costs of diabetes management and treatment for a patient with no diabetes related complications. Probability of developing complications and their duration were determined based on the Archimedes model. It was parameterized with results of a clinical study concerning HbA1c-value changes using the INCA system compared with conventional CSII. The simulation results in form of years of disease within a 30-year time frame were multiplied with corresponding treatment costs. RESULTS Yearly costs of conventional insulin CSII for a diabetes type 1 patient are euro 5908 (German health care system). Using INCA based on the clinical study setting would raise yearly costs by euro 2233. 24% of the INCA costs are generated by the continuous blood glucose measurement device, 5% by IT devices and services. Considering also diabetes related complications in a 30-year time frame and HbA1c value reductions from 7.9 and 7.6% (conventional CSII) to 7.5 and 7.3% (INCA) reduces the additional costs of INCA to euro 2102 and euro 2162. CONCLUSIONS The approach produces an estimation of a lower bound for cost savings concerning the treatment of diabetes related complications in a 30-year time frame. These savings alone do not prove cost efficiency of the INCA approach. Further work is needed to improve the approximation and to include indirect and intangible costs.


Journal of Digital Imaging | 2008

Simplifying the Exploration of Volumetric Images: Development of a 3D User Interface for the Radiologist’s Workplace

M. Teistler; Richard S. Breiman; T. Lison; Oliver J. Bott; Dietrich Peter Pretschner; Aamer Aziz; Wieslaw L. Nowinski

Volumetric imaging (computed tomography and magnetic resonance imaging) provides increased diagnostic detail but is associated with the problem of navigation through large amounts of data. In an attempt to overcome this problem, a novel 3D navigation tool has been designed and developed that is based on an alternative input device. A 3D mouse allows for simultaneous definition of position and orientation of orthogonal or oblique multiplanar reformatted images or slabs, which are presented within a virtual 3D scene together with the volume-rendered data set and additionally as 2D images. Slabs are visualized with maximum intensity projection, average intensity projection, or standard volume rendering technique. A prototype has been implemented based on PC technology that has been tested by several radiologists. It has shown to be easily understandable and usable after a very short learning phase. Our solution may help to fully exploit the diagnostic potential of volumetric imaging by allowing for a more efficient reading process compared to currently deployed solutions based on conventional mouse and keyboard.


ambient intelligence | 2007

Predictions for Epidemiologic Indicators of Age-Related Diseases and Implications for the Development of Health-Enabling Technologies

Michael Marschollek; Klaus-Hendrik Wolf; Oliver J. Bott; Jürgen Howe; Reinhold Haux

The steady increase in life expectancy in our modern industrialized societies will not only lead to a significant change in demographics, but also in epidemiologic factors. This paper reviews current predictions for epidemiologic indicators and derives implications for the development of future health-enabling technologies. Methods: A literature search in PubMed/MEDLINE was conducted and several statistical data bases were used to obtain up-to-date prediction data on health in the elderly population. Results: Prevalence rates for the leading diseases such as cardiovascular diseases, diabetes mellitus and cancers will remain almost constant in the next decades, but incidence rates will rise markedly because of the increase in the elderly population. For neuropsychiatric diseases such as dementias and depression an increased impact is expected. Conclusion: One focus for the development of health-enabling technologies is and will remain on monitoring, especially cardiovascular parameters. More research needs to be conducted to tap the full technological potential of preventive measures, e.g. for the prevention of social isolation and the promotion of a healthy lifestyle.


Methods of Information in Medicine | 2017

On Teaching International Courses on Health Information Systems Lessons Learned during 16 Years of Frank - van Swieten Lectures on Strategic Information Management in Health Information Systems

Elske Ammenwerth; Petra Knaup; Andreas Winter; A. W. Bauer; Oliver J. Bott; Matthias Gietzelt; B. Haarbrandt; Werner O. Hackl; Nils Hellrung; G. Hübner-Bloder; Franziska Jahn; Monique W. M. Jaspers; U. Kutscha; C. Machan; B. Oppermann; J. Pilz; J. Schwartze; C. Seidel; J.-E. Slot; S. Smers; K. Spitalewsky; N. Steckel; A. Strübing; M. van der Haak; Reinhold Haux; W. J. ter Burg

Summary Background Health information systems (HIS) are one of the most important areas for biomedical and health informatics. In order to professionally deal with HIS well-educated informaticians are needed. Because of these reasons, in 2001 an international course has been established: The Frank – van Swieten Lectures on Strategic Information Management of Health Information Systems. Objectives Reporting about the Frank – van Swieten Lectures and about our students‘ feedback on this course during the last 16 years. Summarizing our lessons learned and making recommendations for such international courses on HIS. Methods The basic concept of the Frank – van Swieten lectures is to teach the theoretical background in local lectures, to organize practical exercises on modelling sub-information systems of the respective local HIS and finally to conduct Joint Three Days as an international meeting were the resulting models are introduced and compared. Results During the last 16 years, the Universities of Amsterdam, Braunschweig, Heidelberg/Heilbronn, Leipzig as well as UMIT were involved in running this course. Overall, 517 students from these universities participated. Our students‘ feedback was clearly positive. The Joint Three Days of the Frank – van Swieten Lectures, where at the end of the course all students can meet, turned out to be an important component of this course. Based on the last 16 years, we recommend common teaching materials, agreement on equivalent clinical areas for the exercises, support of group building of international student groups, motivation of using a collaboration platform, ensuring quality management of the course, addressing different levels of knowledge of the students, and ensuring sufficient funding for joint activities. Conclusions Although associated with considerable additional efforts, we can clearly recommend establishing such international courses on HIS, such as the Frank – van Swieten Lectures.

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Dietrich Peter Pretschner

Braunschweig University of Technology

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K. Dresing

University of Göttingen

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Joachim Bergmann

Braunschweig University of Technology

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Michael Teistler

Braunschweig University of Technology

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Ina Hoffmann

Braunschweig University of Technology

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