systemFujifilmMammographyfamily: amulet

Fujifilm AMULET Innovality

Family: Fujifilm AMULET · Modality: Mammography

Fujifilm's current digital breast tomosynthesis (DBT) and 2D FFDM platform for global markets (outside North America, where ASPIRE Cristalle is the US-market-branded parallel product). AMULET Innovality's defining technical differentiator is the HCP (Hexagonal Close Pattern) amorphous-selenium detector, which arranges the pixel array in a hexagonal geometry rather than the conventional square TFT grid used by competitor a-Se detectors — enabling a 50 µm pixel pitch, the finest pixel pitch in clinical mammography.

HCP detector architecture

  • Hexagonal Close Pattern — detector pixels arranged in a hexagonal lattice rather than conventional square grid. The hexagonal geometry allows denser packing at the same pixel size, yielding higher DQE at matched dose vs conventional square-pixel detectors.
  • Direct-conversion amorphous selenium (a-Se) — the detector material class shared with Hologic Selenia / Siemens Mammomat lineage, but with Fujifilm's proprietary HCP pixel geometry.
  • 50 µm pixel pitch — finer than the 70 µm standard on Hologic 3Dimensions and Siemens Mammomat Revelation. Clinically meaningful for very fine microcalcification detection.

Tomosynthesis modes

  • Standard (ST) mode — rapid exposure, efficient workflow, lower X-ray dose. Primary screening / routine DBT mode.
  • High-Resolution (HR) mode — longer acquisition with higher spatial resolution and more efficient overlap removal. Used when detailed evaluation of a region of interest is clinically warranted; detail depiction and structure conspicuity are materially improved vs ST mode.

Tube and filtration

  • Tungsten (W) target.
  • Three selectable filters:
    • Rhodium (Rh) — optimized beam spectrum for 2D FFDM.
    • Aluminium (Al) — optimized for DBT acquisitions.
    • Copper (Cu) — optimized for contrast-enhanced dual-energy mammography (CEDM) energy subtraction.

Contrast-Enhanced Dual-Energy Mammography (CEDM)

  • Dual-energy acquisition — paired high-energy and low-energy exposures with iodine contrast; subtraction imaging shows iodine distribution against the soft-tissue background.
  • Cu filter used on the high-energy exposure to optimize energy separation from iodine's K-edge.
  • Clinical use cases — problem-solving (dense breasts, equivocal lesions), CE-alternative for MRI-contraindicated patients, pre-biopsy characterization.

Specs

  • HCP (Hexagonal Close Pattern) a-Se direct-conversion detector
  • 50 µm pixel pitch (finest in clinical mammography)
  • Tungsten target; Rh / Al / Cu filter options
  • DBT ST / HR modes
  • CEDM capability
  • 2D FFDM, DBT, CEDM on a single platform
  • MQSA-accreditable (MQSA) in applicable markets

Clinical positioning

  • Screening programs with DBT-forward protocols — international DBT-capable screening.
  • Sites prioritizing fine microcalcification detection — 50 µm pixel pitch matters at the limits of calcification conspicuity.
  • CEDM-capable workflows — problem-solving at sites with contrast-enhanced mammography programs.
  • International markets where Innovality is the branded product; US sites see the ASPIRE Cristalle equivalent.

Relationship to siblings

  • Fujifilm ASPIRE Cristalle — US-market naming of the AMULET Innovality platform family. Same underlying HCP detector architecture.

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