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Kyoto Thorax SPECT/PET Phantom

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To maintain high standards of image quality in nuclear medicine, it is crucial to implement quality assurance processes for SPECT and PET imaging equipment. The Kyoto Thorax SPECT/PET Phantom proves to be an exceptional tool for quality management of such NM equipment.

Components that can be filled with solution:

  • Liver
  • Kidney (right/left)
  • Hot spots (liver, lungs and breast)
    *Hot spot for PET can be set in liver, lungs and breast.
  •  Heart
    • anatomical shape (right ventricle, left ventricle and myocardium)
    • geometric shape (left ventricle and myocardium)
      *Each type has an additional variation with defects. (4 types of heart units in total)

Other anatomical structures:

  • Aorta
  • Ribs
  • Spinal Column
  • Scapula
  • Breast
  • Clavicle

Examination of myocardial density through SPECT imaging

  • Verification of myocardial imaging with the use of various RI solution densities
  • Ability to capture defects of the myocardial region
  • Can reproduce image variations of the heart by injecting RI solutions in the liver, kidney and lungs.


Examination of RI solution density for the simulated tumor image

  • The simulated tumors (upper left) are able to be attached in Lung, Liver and Breast.
  • Irrigate FDG into the simulated tumor and exam the density of RI solution for verification of tumor size

Hot spots for PET can be set in liver, lungs, and breast.

Item Numbers

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  • Soft tissue: transparent polyurethane
  • Bone materials: using considered materials in mutual reaction under RI
  • Lungs: materials with density 0.4 g/cm3. (Capable to inject RI solution.)


  • Weight of phantom itself is 14kg.
  • Phantom weight with filled water is 39.5kg.

CT value of each part

  • Bone: 370HU
  • Lung: -900HU
  • Organ shell material: 100HU, and 1.18g/cm3 in density

Recommended radio density

  • Myocardium, Liver and Kidney: 80KBq/ml
  • Lung: 30KBq/ml

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Evaluation Features

  • Left ventricle, planer images and SPECT images of myocardial sections
  • Detection of negative and positive image by SPECT of myocardium.
  • Quantitative analysis of myocardium
  • Myocardial uptake rate
  • Scattering radiation from liver to myocardium
  • Attenuation correction
  • Scatter correction
  • Evaluation of the artifact
  • Evaluation of image reconstruction

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5250-0199 Kyoto Thorax SPECT/PET Phantom