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The CaliberMRI Breast Phantom

Engineered for breast cancer diagnosis and monitoring

Breast MRI is challenging because of the range of breast sizes as well as the inhomogenous mix of fat and fibroglandular tissues, leading to image artifacts. Using a variety of materials that mimic the variety of breast tissues, the CaliberMRI Breast Phantom is specifically designed for quantitative breast MRI scans.
  • Four layers of alternating fibroglandular and fat mimics with T1 spread (100ms-1900 ms)
  • 12 spheres filled with fibroglandular T1 surrounded by bulk fat mimic
  • 12 spheres filled with fat mimic surrounded by bulk fibroglandular mimic
  • 12 tubes filled with 0, 10, 25, or 40% aqueous PVP solution to mimic diffusion
  • 4 tubes filled with fat mimic
  • Bulk solution is fibroglandular T1 mimic
  • B1 and B0 non-uniformity
  • Geometric linearity
  • Gradient amplitude
  • System center frequency drift (short time duration)
  • Resolution (high-contrast detectability and SNR (low-contrast detectability)
  • Accuracy and precision of T1 and T2 measurements
  • Accuracy and precision of the Apparent Diffusion Coefficient (ADC)

Developed in collaboration with NIST and UCSF

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