Quantitative videoangiocardiography

Quantitative videoangiocardiography

R.P. van Wijk van Brievingh. Quantitative videoangiocardiography Quantitative Videoangiocardiography R. P. WAN WIJK VAN BRIEVINGH With a.

Author: R.P. van Wijk van Brievingh

Publisher: Springer Science & Business Media

ISBN: 9789401180757

Category: Medical

Page: 203

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2. Vidicor 3. Anacor 4. Digicor 5. Magnetic Recording of the Videosignal VI. GEOMETRIC MODEL I. Introduction 2. Survey of Models 3. Preparation of Casts 4. Index of Irregularity 5. In Vitro Tests VII. DETECTION OF THE VENTRICULAR CONTOUR I. Introduction 2. Semi-automatic Methods 3. The Influence of the Trained Operator 4. Conclusions VIII. DATA CONVERSION 1. Introduction 2. Light-pen System and Contour Memory 3. Digicor 4. Evaluation Procedure 5. Data Presentation IX. SOFTWARE SYSTEM 1. Introduction 2. Modular Structure 3. Data Conversion 4. Volume Calculation 5. Data Presentation 6. Special Programs X. IN VIVO TESTS 1. Introduction 2. Materials and Methods 3. Results XI. UNCERTAINTY ANALYSIS I. Introduction 2. Uncertainty Intervals for Relevant Variables Propagation 3. of Uncertainty 4. Uncertainty Interval in the Result XII. DISCUSSION XIII. APPENDIX 1. Glossary 2. Dedvations 3. Results XIV. REFERENCES 1. Literature 2. Internal Reports ACKNOWLEDGEMENTS VIII Illustrations Figure Block-diagram of Instrumentation 12 1. 1 Central Synchronization 17 2. 1 2. 2 Effect of Scattered Radiation (Biplane) 18 Block-diagram of X-ray/TV-system 2. 3 21 2. 4 Test-object for OTF-measurement 25 Spatial Responses and Optical Transfer Functions 2. 5 26 Deviation from Isoplanasy and Influence of Additional Equipment 2. 6 28 2. 7 Temporal Modulation Transfer Function Curves 31 2. 8 Biplane Projections 33 2. 9 X-ray Aiming Device 36 2. 10 Calibration Curve 37 3. 1 Concentration vs. Tube Voltage Curves 45 3. 2 Markers and Applicators 48 3. 3.
Categories: Medical

Accessions of Unlimited Distribution Reports

Accessions of Unlimited Distribution Reports

MN - 61 NP EDB ; ERA MN - 48 NP NSA BIOLOGY AND MEDICINE ( INIS - Of -- 1929 ) Quantitative videoangiocardiography . van Wijk van Brievingh , R.P. ( Amsterdam Univ . ( Netherlands ) ) .

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ISBN: UOM:39015095161488

Category: Nuclear reactors

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Categories: Nuclear reactors

Delft Progress Report

Delft Progress Report

... R.P. van / Quantitative VideoAngiocardiography / ISBN 90 298 1700 1 / Dfls 49.75 Brink G. van den and F.A. Bilsen ( eds ) / Psychophysical Physiological and Behavioural Studies in Hearing . Proceedings of the 5th International ...

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ISBN: CORNELL:31924058222997

Category: Science

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Categories: Science

Simulation and Imaging of the Cardiac System

Simulation and Imaging of the Cardiac System

Quantitative video angiocardiography When we became interested in the analysis of the dynamic geometry of the heart and the resulting blood flow we started like others (Wood et al., 1964; Heintzen, 1971; Ritman et al., 1971; ...

Author: S. Sideman

Publisher: Springer Science & Business Media

ISBN: 9789400949928

Category: Medical

Page: 452

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The ultrasound velocity tomography allows measurement of cardiac geometries for various phases in the cardiac cycle. The present tomograph makes reconstruc tions at intervals of 20 ms. Because of a lack of clear (intramural) landmarks (except the roots of the papillairy muscle), it is difficult to pinpoint spatial trajectories of particular points in the heart. Therefore, a second method was developed of injecting radiopaque markers in the heart and following their motion patterns during the cardiac cycle with help of a biplane X-ray equipment. The data obtained with both methods can be implemented in our finite element model of the heart to compute intramural stresses and strains. The results obtained sofar with the extended Darcy equation to account for the interaction of blood rheology and tissue mechanics look promising. Further testing with more sophisticated subjects than mentioned in Figure 9 is required before it will be implemented in our finite element model of the heart. We conclude that analysis of regional cardiac function, including regional myocardial blood flow, requires still a major research effort but the results obtained sofar justify, to our opinion, a continuation in this direction. Acknowledgement The authors acknowledge Dr. C. Borst and coworkers for doing the animal experiments and prof. Van Campen and dr. Grootenboer for their participation is some aspects of this work.
Categories: Medical

European Journal of Cardiology

European Journal of Cardiology

[ 14 ] Van Wijk van Brievingh , R. P. ( 1973 ) : Quantitative videoangiocardiography A method for measuring the - [ 15 ] Kundel , H. L. , Revesz , G. , Ziskin , M. C. and Shen , F. J. ( 1972 ) : The image and its influence on ...

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ISBN: UIUC:30112119662036

Category: Cardiology

Page: 562

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Categories: Cardiology

Advances in Noninvasive Cardiology

Advances in Noninvasive Cardiology

(d) Dynamic Cine- and Videoangiocardiography with high spatial- and temporal resolution image intensifiers. ... QUANTITATIVE WIDEO ANGIOCARDIOGRAPHY CONCEPTS AND REALIZATION TECHNICAL HIGH WOLTAGE FUNDAMENTALS QUANTIFICATION OF GLOBAL ...

Author: J. Meyer

Publisher: Springer Science & Business Media

ISBN: 9789400967205

Category: Medical

Page: 270

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Many noninvasive examination methods of the heart have not held out against the invasive methods, which modern cardiac therapy, surgically or with catheterization, requires. They have disappeared completely or are only used by isolated groups of researchers. However, there is an obvious tendency to apply the invasive procedures as the last diagnostic possibility. In the attempt to select clinically relevant methods, the expert authors of this book demonstrate that echocardiography, expanded with contrast and Doppler, has been developed into one of the most important noninvasive methods. The results with tissue characterization show that the possibilities of this method have not yet been fully explored. Nuclear procedures are widely used, although they should only be applied in direct connection with clinical cardiology. The new lead methods of the ecg, such as ecg-mapping, show that standard electrocardiography of electrical functions is not yet fully exploited. The rapidly developing method of computer tomography is also being applied to cardiology. Since nuclear magnetic resonance requires extensive equipment con struction, its future is as yet unsure. Of course, a book like this does not intend to treat the subject of noninvasive cardiology in extensive detail. Established methods like standard electrocardio graphy, phonocardiography and sphygmography are not discussed. The aim of this book is rather to demonstrate the trend of present developments in the field. LIST OF CONTRIBUTORS Ameling, W., Rogowski-Institut fUr Elektronik, Rheinisch-Westfalische Technische Hochschule, Goethestrasse 27/29, D-5100 Aachen, FRG. Bachmann, K., Medizinische Poliklinik, Universitat Eriangen-NUrnberg, Ostliche Stadtmauerstrasse 29, D-8520 Erlangen, FRG.
Categories: Medical

International Books in Print

International Books in Print

ne E.S.P. ( 540 ) Quantitative Ultrastructural Data of Animal and Human Cells / David , H. - 1977. - 495p . - cl DM138.00 ISBN 3-437-30275-2 . - gw Fischer Stuttgart ( 574 ) Quantitative Videoangiocardiography / Brievingh Van Wijk ...

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ISBN: IND:30000004663831

Category: English imprints

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Categories: English imprints

Current Catalog

Current Catalog

7612151 Quantitative analysis by NMR spectroscopy Kasler , F. ISBN 0-89004-133-4 04NLM : WL 385 011 1976 ... Quantitative problems in the biochemical sciences Montgomery , Rex , 1923see Quantitative videoangiocardiography Wijk van ...

Author: National Library of Medicine (U.S.)

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ISBN: UOM:39015074102636

Category: Medicine

Page: 1378

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First multi-year cumulation covers six years: 1965-70.
Categories: Medicine

INIS Atomindex

INIS Atomindex

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ISBN: MINN:31951P00231941S

Category: Nuclear energy

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Categories: Nuclear energy

Digest of the International Conference on Medical and Biological Engineering

Digest of the International Conference on Medical and Biological Engineering

SUBTRACTION AS A TOOL IN QUANTITATIVE VIDEOANGIOCARDIOGRAPHY . DIGEST OF THE 10TH INTERNATIONAL CONFERENCE ON MEDICAL AND BIOLOGICAL ENGINEERING - 1973 1973 - DRESDEN QUANTITATIVE APPROACH TO DETECTION OF UNCERTAIN BOUNDARY DIGEST OF ...

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ISBN: UIUC:30112007641571

Category: Biomedical engineering

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Categories: Biomedical engineering