High-Resolution Computed Tomography (HRCT)

HPC’s noise-free detection, utilized with a dedicated spectral weighting of lower and higher photons from different energy or spectrum bins, provide several advantages for HRCT:

  • Increased contrast-to-noise ratio (CNR) compared to conventional dual-energy CT
  • Higher dose efficiency (single exposure; 100% geometrical efficiency)
  • Improved CT resolution, even beyond premium high-resolution CT; pixel sizes below 500 µm (see HRCT images below)
  • Reduced beam hardening and streak artifacts


High-resolution peripheral quantitative computed tomography (HR-pQCT) measurements of a bone phantom. CT comparison of DECTRIS HPC detector (left, pixel size of 75 μm, raw data) with a CCD detector (right, pixel size of 48 μm) (courtesy Scanco Medical, Switzerland).

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