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[Basic investigation of data acquisition system for next generation PET scanner].

Eiji Yoshida1, Keiji Shimizu, Keishi Kitamura

  • 1National Institute of Radiological Sciences.

Igaku Butsuri : Nihon Igaku Butsuri Gakkai Kikanshi = Japanese Journal of Medical Physics : an Official Journal of Japan Society of Medical Physics
|July 2, 2003
PubMed
Summary

This study simulated a 3D Positron Emission Tomography (PET) scanner, estimating its data acquisition system

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[Recent Review Article in RPT: PET Detectors with Depth-of-interaction and Time-of-flight Capabilities].

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Area of Science:

  • Medical Imaging
  • Nuclear Medicine
  • Instrumentation

Background:

  • Developing a 3D Positron Emission Tomography (PET) scanner with Depth of Interaction (DOI) capability.
  • Aiming for high sensitivity and high resolution in the PET scanner.

Purpose of the Study:

  • Estimate the data transfer rate of the data acquisition system for the 3D PET scanner.
  • Evaluate the performance of a parallel data collection system.

Main Methods:

  • Simulation studies were conducted to model the data acquisition system.
  • A parallel collection system with multiple coincidence units was designed.
  • The system comprised stand-alone simulators and a server PC.

Main Results:

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  • Maximum data transfer rate for coincidence pair events is 10 Mcps (64-bit format).
  • Stand-alone simulator achieved a maximum data transfer rate of 12.0 MB/s.
  • Server PC with two nodes reached 21.8 MB/s, improved by parameter optimization and RAM-DISK usage.

    • Conclusions:

    • The data acquisition system design is feasible for the 3D PET scanner.
    • Parameter optimization and multiprocessing significantly enhance data transfer rates.
    • The developed simulation provides a basis for optimizing PET scanner data acquisition.