System Calibration Unit for Magnetic Particle Imaging: Focus Field Based System Function

  • Aleksi Halkola
  • Thorsten Buzug
  • Jürgen Rahmer
  • Bernhard Gleich
  • Claas Bontus
Part of the Springer Proceedings in Physics book series (SPPHY, volume 140)

Abstract

Magnetic particle imaging usually requires image reconstruction in order to obtain the distribution of the superparamagnetic iron oxide particle concentration from the measured signal. An integral part of the reconstruction is the system function, which relates the superparamagnetic iron oxide distribution to the signal it generates in the MPI scanner. Traditionally, the system function is obtained by measuring the signal generated by a known point-like concentration throughout the imaging volume. This however, requires a robot and is very time consuming. In this contribution we demonstrate a method for estimating the system function using focus fields, which avoids the need for a robot.

Keywords

System Function Magnetic Particle Superparamagnetic Iron Oxide Iron Oxide Particle Hall Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Aleksi Halkola
    • 1
  • Thorsten Buzug
    • 1
  • Jürgen Rahmer
    • 2
  • Bernhard Gleich
    • 2
  • Claas Bontus
    • 2
  1. 1.Institute of Medical EngineeringUniversity of LübeckLübeckGermany
  2. 2.Research LaboratoriesPhilips Technologie GmbH Innovative TechnologiesHamburgGermany

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