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At least 55 records · Page 3Linked to original sources
PubMed1979

A study of the multiple pinhole coded aperture and the application of the minicomputer in image decoding.

Research has been done on optically reconstructed imaging employing the Multiple Pinhole Coded Aperture (hereafter abreviated as MPCA) in radioisotope tomographic imaging. However, problems remain in the optically reconstructed image method. Therefore, we employed a minicomputer (hereafter abbreviated as CPU) and developed the software for decoding and managing the radioisotope tomographic image. Combining the MPCA and the CPU system, we were able to decode and manage the radioisotope tomographic image. 1) In comparison to the optically decoded MPCA image, various input commands are possibly in the CPU method according to the dialogue between the CPU and the on line typewriter. In addition to this, decoded tomographic images of unrestricted depth are readily attainable. 2) In the CPU method noise elimination and other aspects of image management can be easily performed.

Computers↗
PubMed1975

Automated weighing procedure for toxicological studies on small animals, using a minicomputer.

A compact system was designed for weighing procedures in toxicological studies on small animals that integrated 4 basic functions: data acquistion, record keeping, statistical analysis, and report preparation. An electric balance, a minicomputer, and a typewriter were incorporated into the system. Elimination of clerical work and accelerated flow of information between planning, operation, and evaluation of experiments were found to be the main advantages.

Animal Feed↗
PubMed1977

[Applications of a minicomputer in an electrocadiography department].

The wide potential of minicomputers and their versatility have modified the traditional image of the computer, allowing it to gain a real foothold in a cardiological service. Examples of some original programmes are: the automatic assessment of a pacemaker on the test bench, the formation of programmed impulses for electrocardiographic investigation, the analysis of arrhythmias by a histogram of the RR interval of frequency analysis, the recording of isochrones in pericardial cartography.

Computers↗
PubMed1978

[Clinical use of a minicomputer in heart surgery intensive care units].

The Authors present three respiratory parameters useful to estimate the respiratory and hemodynamic conditions of a cardiac patients before these turn into obvious pathological clinical pictures. The parameters are: alveolar-arterial oxygen difference, respiratory index and arterial-venous pulmonary shunts. The sophisticated mathematic calculations necessary to calculate and to elaborate such data are made, in few seconds, by a minicomputer which is very easy to work with. A clinical example in which the above-mentioned data have been employed helps to demonstrate their extreme usefulness.

Blood Gas Analysis↗
PubMed1976

Minicomputer enhancement of scintillation camera images using fast Fourier transform techniques.

Minicomputer methods were developed to enhance lesions in scintillation camera images. This study was directed towards improving the diagnostic quality of liver images. A PDP-12 digital computer was interfaced to a Pho/Gamma HP III scintillation camera and programmed to carry out two-dimensional frequency-domain analysis and processing as an on-line operation. A two-dimensional frequency spectrum is produced. An interactive program allows the operator to construct graphically a frequency-domain filter and apply it to the data matrix. The filter is optimized using the image of a known phantom and then applied unchanged to the clincial liver image. An inverse Fourier transform produces an enhances image in the spatial domain. Significant enhancement of both phantom and liver images has been obtained.

Diagnosis, Computer-Assisted↗
PubMedDate not supplied

Development and implementation of a general compiler to produce specific programs for minicomputer control of physiological experiments in real time.

A method for automatic generation of specific FORTRAN programs to control physiological experiments with a computer was developed. The general real-time software package is built into a high level language (MAB = MAcro Basic). From this package, the scientist can automatically generate for him/herself specific programs for controlling his own experiments by a simple procedure. The generated programs contain only the relevant code, adjusted dimensions of arrays, names of parameters, and formatting for printing of tables and graphics for the particular experiment. Therefore, the resulting program is efficient both in terms of memory utilization and in execution time.

Animals↗
PubMed1979

[Research method using discriminant subsets on minicomputers].

Given a set of elements (illnesses, medicines,...) characterised by criteria or attributes (symptoms, characteristics, colour,...), each able to assume a certain number of states (for colour, more than nine), the problem is to find a minimal discriminant chain, or in other words, the smallest sequence of criteria enabling one to distinguish the elements of the initial set, unless of course they are identical. This problem is very general, but when tackled together it often involves excessive calculations. Based on the research principles proposed by Begon and Tremolieres, the authors propose a method well adapted to criteria in several states, which can be used on a small computer, when searching for pseudo-minimal chains by sampling. An application of this method (in liaison with the 'Centre Anti-Poisons', Nancy Pr Larcan) has enabled us to carry out a search for discriminant chains for more than 2800 medical tablets by their external characteristics, among which 3 quantitative criteria were known with a certain margin of error, and 21 qualitative criteria, making a total of more than 60 different states.

Computers↗
PubMedDate not supplied

A minicomputer program for rapid graphical and statistical analysis of laboratory data.

The utility of a FORTRAN program package, which enables the scientific investigator to make a rapid assessment of laboratory data is described. Data are submitted from the keyboard or specified disk files in the form of coordinate pairs. The program includes routines for plotting values as a series of X-Y pairs on the computer video monitor or for comparing the X and Y arrays via paired differences and Student's t-test. A least squares linear regression of plotted data may also be called. Data modification, curve fitting, and I/O are easily handled in either single pair or column format. Examples of both statistical and graphical data analysis are presented.

Computers↗