Scatter correction for contrast-enhanced digital breast tomosynthesis with a dual-layer detector

Purpose: Contrast-enhanced digital breast tomosynthesis (CEDBT) highlights breast tumors with neo-angiogenesis. A recently proposed CEDBT system with a dual-layer (DL) flat-panel-detector enables simultaneous acquisition of high-energy (HE) and low-energy (LE) projection images with a single exposure, which reduces acquisition time and eliminates motion artifacts. However, x-ray scatter degrades image quality and lesion detectability. In this work, we propose a practical method for accurate and robust scatter correction (SC) for DL-CEDBT.
Approach: The proposed hybrid SC method combines the advantages of a two-kernel iterative convolution method and an empirical interpolation strategy, which accounts for the reduced scatter from the peripheral breast region due to thickness roll-off and the scatter contribution from the region outside the breast. Scatter point spread functions were generated using Monte Carlo simulations with different breast glandular fractions, compressed thicknesses,..., , , # Data from: Scatter correction for contrast-enhanced digital breast tomosynthesis with a dual-layer detector

\[[https://doi.org/10.1117/1.JMI.12.S1.S13008](https://doi.org/10.1117/1.JMI.12.S1.S13008))

## Folders and Files

### Folder: Simulated\_Data

**Description:** Contains simulated data used in the study, including scatter point spread function (sPSF) kernels, anthropomorphic digital breast phantoms, and projection images. Details on the simulation tool and imaging geometry are available in the manuscript.

#### Folder: Simulated\_Data\ScatterPSF\_Kernels

**Description:** Simulated sPSF kernels for the front and back layer detectors.

##### Folder: Simulated\_Data\ScatterPSF\_Kernels\front\50gld\_40mm

**Description:** sPSF kernels of the front layer for a 40 mm thick compressed breast with a 50% glandular fraction

######  File: Simulated\_Data\ScatterPSF\_Kernels\front\50gld\_40mm\1\_4\_-8deg.mat

**Description:** front layer sPSF kernels at -8 degree oblique projection ...