Multi-modality Imaging: PET, CT and SPECT, CT

This Editorial Guide is used for Education Purposes Only. It is used in the Authoring Courses and Certifications. It is based on the January 2026 Editorial Guide.

There are very few imaging procedures which are truly multi-modality procedures. Two procedures are usually conducted in parallel, rather than as one. Positron emission tomography with computed tomography (PET/CT) and Single photon emission computed tomography with computed tomography (SPECT/CT), however, are produced by one piece of equipment, possibly by a single technician, but with multiple imaging energies.

Positron emission tomography with computed tomography

• FSN: Positron emission tomography with computed tomography of X (procedure)

• PT: PET CT of X

• SYN: Positron emission tomography with computed tomography of X

  • For example,

    • 16554361000119106 | Positron emission tomography with computed tomography of brain (procedure)|

      • FSN: Positron emission tomography with computed tomography of brain (procedure)

      • PT: PET CT of brain

      • SYN: Positron emission tomography with computed tomography of brain

Single photon emission computed tomography with computed tomography

• FSN: Single photon emission computed tomography with computed tomography of X (procedure)

• PT: Single photon emission computed tomography with computed tomography of X

• SYN: SPECT CT of X

  • For example,

    • 16534151000119105 | Single photon emission computed tomography with computed tomography of liver (procedure)|

      • FSN: Single photon emission computed tomography with computed tomography of liver (procedure)

      • PT: Single photon emission computed tomography with computed tomography of liver

      • SYN: SPECT CT of liver

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