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Multimodality imaging of structure and function.

D W Townsend1

  • 1Departments of Medicine and Radiology, University of Tennessee Medical Center, Knoxville, TN 37920, USA. dtownsend@mc.utmck.edu

Physics in Medicine and Biology
|February 12, 2008
PubMed
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Medical imaging devices historically developed separately. Combining modalities like PET/CT and SPECT/CT in single devices (hardware fusion) now enhances disease diagnosis and staging.

Area of Science:

  • Medical Imaging
  • Biomedical Engineering
  • Radiology

Background:

  • Medical imaging modalities for structure and function historically evolved independently.
  • Software-based image coregistration techniques emerged to combine data from different imaging devices.
  • The development of integrated hardware fusion devices offers an alternative to retrospective software fusion.

Purpose of the Study:

  • To review the evolution of multimodality medical imaging instrumentation.
  • To assess the current status and future potential of hardware fusion devices in clinical practice.
  • To highlight the diagnostic advantages of combining imaging modalities.

Main Methods:

  • Review of historical development of medical imaging devices.
  • Analysis of software-based image fusion techniques.

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  • Examination of the technological advancements in hardware fusion instrumentation (e.g., PET/CT, SPECT/CT, PET/MR).

    • Main Results:

    • Combined PET/CT and SPECT/CT devices are increasingly utilized in clinical diagnosis and staging.
    • The first clinical MR scanner with an integrated PET insert represents a significant technical advancement.
    • Hardware fusion offers advantages over retrospective software-based fusion.

    Conclusions:

    • Multimodality imaging instrumentation has progressed significantly from independent devices to integrated hardware fusion systems.
    • Hardware fusion devices like PET/CT and SPECT/CT are crucial for modern disease diagnosis and staging.
    • Future developments in integrated imaging technologies, such as PET/MR, hold substantial promise for clinical applications.