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Kardiovaskuläre Magnetresonanztomographie pp 151–160Cite as

Flussmessungen

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Zusammenfassung

Mit der Magnetresonanztomographie können die Geschwindigkeit und das Volumen fließenden Blutes quantitativ auf der Grundlage der Phasenkontrasttechnik bestimmt werden. Diese Technik ist in den Kapiteln 3 und 4 detailliert beschrieben. Aus den Messungen werden zwei Bilddatensätze erstellt: ein anatomisches (Modulus) und ein geschwindigkeitskodiertes (Phasenkontrast)Bild. Im Phasenkontrastbild sind die Geschwindigkeiten der Spins in den Voxel als Grauwerte kodiert. Unbewegliche Spins erhalten eine graue Parbe, sich auf den Betrachter zu bewegende Bildpunkte sind helIer, sich vom Betrachter weg bewegende Bildpunkte dunkler kodiert (s. Abb. 19.1). Das jeweilige Signal (dunkel oder hell) ist direkt proportional zur Flussgeschwindigkeit.

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Authors
  1. Christoph Klein
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  2. Eike Nagel
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Editor information

Editors and Affiliations

  1. Deutsches Herzzentrum Berlin, Kardiologie — CMR, Augustenburger Platz 1, 13353, Berlin, Germany

    Eike Nagel

  2. Department of Cardiology, VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, Niederlande

    Albert C. van Rossum

  3. Deutsches Herzzentrum Berlin, Kardiologie/Innere Medizin, Augustenburger Platz 1, 13353, Berlin, Germany

    Eckart Fleck

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© 2002 Springer-Verlag Berlin Heidelberg

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Klein, C., Nagel, E. (2002). Flussmessungen. In: Nagel, E., van Rossum, A.C., Fleck, E. (eds) Kardiovaskuläre Magnetresonanztomographie. Steinkopff, Heidelberg. https://doi.org/10.1007/978-3-642-57535-8_19

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  • DOI: https://doi.org/10.1007/978-3-642-57535-8_19

  • Publisher Name: Steinkopff, Heidelberg

  • Print ISBN: 978-3-642-63291-4

  • Online ISBN: 978-3-642-57535-8

  • eBook Packages: Springer Book Archive

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