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Related Experiment Videos

FPGA-Based Front-End Electronics for Positron Emission Tomography.

Michael Haselman1, Don Dewitt, Wendy McDougald

  • 1Department of Electrical Engineering, University of Washington, Seattle, WA.

FPGA. ACM International Symposium on Field-Programmable Gate Arrays
|October 1, 2011
PubMed
Summary

Field Programmable Gate Arrays (FPGAs) offer ideal solutions for positron emission tomography (PET) scanner data acquisition. Integrating advanced signal processing into FPGAs enhances image resolution and real-time event localization for small-animal imaging.

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Area of Science:

  • Medical Imaging
  • Digital Signal Processing
  • Embedded Systems

Background:

  • Modern Field Programmable Gate Arrays (FPGAs) offer high clock rates and cost-effectiveness.
  • FPGAs are suitable for data acquisition systems in positron emission tomography (PET) scanners.
  • The laboratory is developing a high-resolution, small-animal PET scanner utilizing FPGAs for front-end electronics.

Purpose of the Study:

  • To migrate complex signal processing functions to FPGAs for enhanced PET scanner performance.
  • To detail sub-clock rate pulse timing and real-time event localization algorithms implemented on FPGAs.
  • To demonstrate the capability of FPGAs in improving image resolution and data acquisition efficiency.

Main Methods:

  • Implementing discrete signal processing algorithms on FPGAs.

Related Experiment Videos

  • Developing sub-clock rate pulse timing techniques within the FPGA.
  • Utilizing statistical algorithms for real-time event localization on the FPGA.
  • Comparing FPGA-based timing with analog methods.

    • Main Results:

    • FPGA-based timing achieves suitable resolution for small-animal PET scanners.
    • FPGA timing performance can surpass analog methods with sufficient ADC sampling rates.
    • Real-time event position determination is achieved using statistical algorithms on the FPGA.

    Conclusions:

    • FPGAs simplify electronics and add significant signal processing power to PET scanners.
    • FPGA implementation of timing and localization enhances small-animal PET scanner capabilities.
    • This approach leads to higher resolution images and more efficient data acquisition.