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Dynamic radiography—a technique employing scattered radiation to monitor surface motion

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Abstract

The essential concepts of dynamic radiography are discussed and the apparatus and methods used to monitor surface motion are described. Initial experiments with a model simulating the heart-lung interface are presented to demonstrate the manner in which the physical properties of a dynamic system may be interrogated. A cardiac study with anaesthetised dogs is also presented to demonstrate the applicability of the technique to a biological system. Methods of data accumulation and analysis are described which will be used in further studies of cardiac function and condition.

Sommaire

L'article débat les concepts essentiels de la radioscopie dynamique et décrit les appareils et les méthodes utilisées pour contrôler les mouvements superficiels. Des premières expériences avec un modèle simulant l'interface coeur-poumon sont présentées pour démontrer la façon de laquelle les propriétés physiques d'un système dynamique peuvent être interrogées. Une étude cardiaque sur un chien anesthésié est aussi présentée pour démontrer l'applicabilité de la méthode à un système biologique. Des méthodes d'accumulation des données et de leur analyse qui seront utilisées dans des études ultérieures de fonction et de condition cardiaque, sont décrites dans l'article.

Zusammenfassung

Die wesentlichen Konzepte der dynamischen Radiographie werden errtöert, und Geräte und Verfahren zur Überwachung der Oberflächenbewegung werden beschrieben. Erste Experimente mit einem Modell, durch das die Herz/Lungenberührungsfläche simuliert wird, werden vorgestellt, um zu zeigen, in welcher Weise die physikalischen Merkmale eines dynamischen Systems abgefragt werden können. Eine Herzuntersuchung an narkotisierten Hunden wird ebenfalls dargestellt, um zu zeigen, daß sich das Verfahren auf ein biologisches System anwenden läßt. Verfahren zur Datensammlung und-analyse werden beschrieben, die in weiteren Untersuchungen von Herzfunktion und-zustand verwendet werden.

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Authors and Affiliations

  1. Department of Nuclear Engineering, Pennsylvania State University, Penn, USA

    David G. Tilley, Alan M. Jacobs & Edward S. Kenney

  2. Department of Radiology, Milton S. Hershey Medical Centre, Pennsylvania State University, Penn, USA

    William A. Weidner & Kenneth L. Miller

Authors
  1. David G. Tilley
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  2. Alan M. Jacobs
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  3. Edward S. Kenney
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  4. William A. Weidner
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  5. Kenneth L. Miller
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Tilley, D.G., Jacobs, A.M., Kenney, E.S. et al. Dynamic radiography—a technique employing scattered radiation to monitor surface motion. Med. & biol. Engng. 14, 141–150 (1976). https://doi.org/10.1007/BF02478740

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  • DOI: https://doi.org/10.1007/BF02478740

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