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PubMed1988

[Use of a computer system in perinatal data collection].

We present a computer system for obstetrical and perinatological data collection. All deliveries of the years 1984, 1985, and 1986 have been collected with this data collection program, so that there is how a data base containing 7,975 data records. A relational data base was chosen for data collection and storage. Either off-line or on-line data collection is possible by medical users via menu monitoring. Various possibilities of use are described.

Birth Weight↗
PubMedDate not supplied

["Hepar"--the clinical computer system and its diagnostic and didactic use].

The possibilities of application of the "Hepar" computer system in medical didactics are discussed. The usefulness of hepatological diagnosis assistance with information++ systems is described and the multistage schema of diagnostic management is presented. In the conclusions the advantages of this system in medicine teaching is stressed and its usefulness in clinical practice is outlined.

Computer Systems↗
PubMed1987

Pharmacy-based computer system for monitoring and reporting drug interactions.

A pharmacy-based computer system for monitoring and reporting drug interactions is described, and physicians' responses to patient management suggestions generated by the system are reported. Using information from a commercially available drug-interaction database, a pharmacist chose 41 potentially interacting drug combinations to include in the pharmacy's automated system. A warning notice appears on the computer screen if one of these drug combinations is prescribed. Pharmacists who encounter these notices while entering medication orders telephone the prescribing physician if the combination represents a Class I interaction (immediate onset, major severity, established documentation); for Class II interactions, which have a delayed onset, a copy of the warning notice and suggestions for patient management are placed in the prescribing physician's mailbox. The system was evaluated during a three-month period in 1985 to determine physicians' responses to the patient management suggestions. A total of 927 patients had 1004 potentially interacting drug combinations prescribed for them. Changes in drug dosage were made in 44% of these instances, and in 75%, patients were monitored for the development of adverse clinical effects. A computerized drug-interaction monitoring system can help increase physicians' awareness of possibly interacting drug combinations and provide them with useful information about the clinical management of patients for whom such drug combinations have been prescribed.

Adolescent↗
PubMed1992

Personal computer system for ECG ST-segment recognition based on neural networks.

A personal computer system for electrocardiogram (ECG) ST-segment recognition is developed based on neural networks. The system consists of a preprocessor, neural networks and a recogniser. The adaptive resonance theory (ART) is employed to implement the neural networks in the system, which self-organise in response to the input ECG. Competitive and co-operative interaction among neurons in the neural networks makes the system robust to noise. The preprocessor detects the R points and divides the ECG into cardiac cycles. Each cardiac cycle is fed into the neural networks. The neural networks then address the approximate locations of the J point and the onset of the T-wave (T(on)). The recogniser determines the respective ranges in which the J and T(on) points lie, based on the locations addressed. Within those ranges, the recogniser finds the exact locations of the J and T(on) points either by a change in the sign of the slope of the ECG, a zero slope or a significant change in the slope. The ST-segment is thus recognised as the portion of the ECG between the J and T(on) points. Finally, the appropriateness of the length of the ST-segment is evaluated by an evaluation rule. As the process goes on, the neural networks self-organise and learn the characteristics of the ECG patterns which vary with each patient.(ABSTRACT TRUNCATED AT 250 WORDS)

Computer Systems↗
PubMed1986

Computer corner #15. The AAOS: request for computer system proposal.

The Committee on Computer Science and Practice Management of the American Academy of Orthopaedic Surgeons has provided an excellent format to ensure a happy relationship between the vendor and the orthopaedic office using this package. Problems in communication and understanding between the vendor and the orthopaedic surgeon will undoubtedly be significantly reduced. How the system will work is the vendor's problem, but what you want it to do for you is your problem, and both of these issues are addressed in these questionnaires. It is recommended in the computer package that three vendor proposals be invited. Since the most frequent cause of computer problems is improper evaluation of what functions the computer system must perform in order to meet the needs of the orthopaedic office, this series of questionnaires is important. In addition to recommending this computer package, I would also emphasize that if at all possible--in spite of what may appear to be an excellent system on paper--try to visit an office in which the system has been in use over the past six to 12 months.

Humans↗
PubMed1987

Development and use of a computer system in a radiotherapy department: SISGRAD.

SISGRAD, the interactive computer system of the Antoine-Lacassagne Cancer Center Radiotherapy Department, has been operational since January 1982. It completes the computerized dosimetry system installed several years earlier and is fully integrated with the institution's central network. SISGRAD is in charge of surveillance of the radiotherapy treatments given by the Center's three radiotherapy units (1400 patients per year); it is also used for administrative purposes in the Department and physically connects all of the Department's operating stations. SISGRAD consists of a series of microcomputers connected to a common mass memory; each microcomputer is used as an intelligent console. SISGRAD was developed to guarantee that the treatments comply with prescriptions, to supply extemporaneous dosimetric data, to improve administrative work, and to supply banks with data for statistical analysis and research. SISGRAD actively intervenes to guarantee treatment quality and helps to improve therapy-related security factors. The present text describes the results of clinical use over a 4-year period. The consequences of integration of the system within the Department are analyzed, with special emphasis being placed on SISGRAD's role in the prevention and detection of errors in treatment prescription and delivery.

Database Management Systems↗
PubMed1977

Thallium-201 imaging with color display computer system in old myocardial infarction.

In 13 patients with old myocardial infarction diagnosed with use of the electrocardiogram, coronary angiogram and left ventriculogram and in 11 patients without infarction, thallium-201 imaging with a color display computer system was carried out. In the group without infarction the average ratio of activities in two regions of interest within the myocardial wall, excluding the apex, was 1.14 (1.08 to 1.23). In the group with infarction the average ratio of noninfarcted to infarcted areas was 1.44 (1.23 to 1.78). Objective detection of infarction was possible in 12 patients (92 percent) in the group with infarction. In two patients, the earlier electrocardiographic pattern of infarction had resolved by the time of imaging. These results suggest that the sensitivity of thallium-201 imaging in the diagnosis of old myocardial infarction may be greatly enhanced by objective and quantitative analysis using a color display computer system.

Adult↗
PubMed1988

A computer system for the interactive planning and prediction of maxillofacial surgery.

A computer system has been developed for the simulation of facial surgery with interactive three-dimensional graphic techniques and data derived from computed tomographic scans and a purpose-built laser scanning system. The simulation includes the surgery on the hard tissues, and modeling of the soft tissue for prediction of the postoperative facial appearance. The facilities available are described and an example of their use is given.

Computer Graphics↗
PubMed1978

Readers' forum: experiences with a system. The implementation of a completely operational computer system in a cardio-thoracic department.

Wythenshawe Hospital is a large general district hospital with more than 1000 beds, situated approximately 9 miles south of Manchester. The Cardio-Thoracic department, housed in the new section of the hospital which was completed in 1973, is the major centre for cardiothoracic surgery in the greater Manchester area. It also receives any major accident cases which require treatment within the Intensive Therapy Unit. This paper describes a Patient Data Display System and the methods used to introduce the concept of such a system, to doctors, nurses, laboratory and paramedical staff, and the manner in which these staff were trained in the use of computer terminals. Principles underlying the need for and requirements of such a system are also discussed. Six months after hardware commissioning the system was fully operational throughout the whole department.

Computers↗
PubMed1985

[Studies on a handheld computer system for perinatal care].

The present paper demonstrates a handheld computer system for use in perinatal care. The features of the system are as follows: The gestational age and fetal body weight were determined by analyzing the data from ultrasonography with the high-order regressive equation. The combined use of the linear regressive equation and Ott's equation was more useful in precisely calculating the fetal abdominal circumference. In order to decrease input error, attempts were made to minimize key-operations for data-entry. The use of the screen edition system also made it easier to correct input error. It was concluded that this system was practical and easy to handle, and would be a useful aid in clinical care.

Body Weight↗
PubMed1989

Distributed computer system for capture, analysis and display of biological data.

A distributed real-time computer system has been developed to automate the collection, analysis and display of biological (pharmacological) data. It comprises a series of laboratory interface devices (CED 1401/1609) connected to a micro-VAX II via multiple IEEE-488 buses. The micro-VAX II is integrated to the main site computers using Ethernet running DECnet. The micro-VAX II system supports a multi-user, multipreparation and multitasking environment and it provides rapid transfer, storage, analysis and display of data. The system saves the pharmacologists from the manual analysis of their data, typically saving them four days of analysis per experiment and has improved both the quality of data detected and their subsequent analysis. Also, the development of a standard data capture procedure on common hardware along with the modular design of application software has almost quartered project development times.

Computer Communication Networks↗
PubMed1978

[Computer system for the automatic analysis of cath-lab data. Reliability of pattern-recognition and measurements (author's transl)].

The computer-system for the on-line-analysis of hemodynamic data developed in Aachen enables the clinical user to perform the immediate on-line analysis of ECG, pressure-curves and thermo- or dye-dilution-curves in a dialog mode. The procedure of pressure analysis as well as the calculations by the computer for the individual haemodynamic parameters are described. The comparison of the medical-manual evaluation of the pressure curves on paper-registration and the computer results of the same measurement shows a very good correlation for wave-recognitions and wave-measurements for this system, integrated in the daily routine since 24 months. As well in the application of various fluid-filled catheters used in praxis as in tip-manometers it could be proved for the pressure-analysis in the different positions of the heart, that the computer-system produced reliable evaluations for all catheter materials used. The flexible conception of the computer program with its fast adaption to new problems allows its use not only in the clinical routine, but also and especially in the handling of scientific questions in the frame-work of haemodynamic analysis.

Cardiac Catheterization↗
PubMed1985

Selecting and maintaining a supported office computer system.

Many costly errors can be made in selecting an in-office computer system. When selecting a system, several guidelines should be followed carefully: A professional computer consultant perhaps should be considered, depending on your level of experience and knowledge of computers. Look specifically at what you want your hardware and software to do, for this will determine the size and character of your system. Evaluate the size and potential size of your practice, as this will also determine the size and expansion capabilities of your system. Carefully evaluate your hardware and software for reputation, system support, maintenance costs, flexibility, and expandability. Carefully evaluate your cost/benefit ratio: is it worth your money to buy a computer in the first place? When evaluating the costs, don't forget the many hidden costs that may be present, in addition to the hardware/software purchase price. Computers will serve you well in the practice and business of medicine. However, in this rapidly changing technologic/informational field, the key words are knowledge and caution.

Computers↗
PubMed1990

A computer system for the identification of the cerebrospinal compensatory model.

A computer system, based on IBM PC, was designed for the cerebrospinal compensatory model identification. The intracranial pressure (ICP) signal, registered during the lumbo-lumbar infusion test is analyzed by means of the spectral analysis algorithm in order to measure precisely the pulse wave amplitude. The amplitude and the mean ICP level, calculated repetetively within the period of about 8 seconds, are stored on the disk and form the basis for further model identification. Three different methods of identification were applied. They enable one to estimate the fundamental model parameters, such as: resistance to the cerebrospinal fluid resorption, pressure-volume index, baseline pressure, rate of formation of the cerebrospinal fluid. Statistical evaluation of the results of the infusion test analysis obtained by means of the system described in two groups of hydrocephalic patients (children and adults) is presented.

Adult↗
PubMed1987

Implementation of a multirule, multistage quality control program in a clinical laboratory computer system.

We developed a computer subsystem that permits users to implement multirule, multistage quality control procedures. The subsystem runs as a task in the RelationaLABCOM information system and permits the collection of data from on-line instruments, as well as through manual (keyboard) entry. The choices of control rules and their combinations are at the discretion of each laboratory section, with the system automatically administering the chosen protocols for all the technologists working with the computer. Retrospective data analysis and statistics are available for review by laboratory personnel. The subsystem provides a significant improvement in the availability of real-time quality control at the bench.

Clinical Laboratory Information Systems↗