The Modular DBT Phantom supports comprehensive testing of digital breast tomosynthesis systems.


A stack of modules supports a variety of tests and automatically aligns to the detector chest wall for easy setup and reproducibility.

Precise Tissue Mimicking
A range of simple to complex targets are precisely placed within tissue-equivalent breast material that is 50% breast-glandular and 50% breast-adipose1. High-attenuating objects are used to test projection images, and low contrast objects simulate breast tissue for reconstructed images.

Proactive Compliance
Comply with protocols and standards, including IEC 61223-3-6 and developing AAPM Task Group 245 requirements.


Adaptable for Image Quality Tests

  • Image Quality (detectability)
  • Missing Tissue Detection
  • 2D and 3D Accuracy
  • Line Spread Function (LSF)
  • Artifact Detection
  • Contrast-to-Noise Ratio (CNR)
  • Signal-to-Noise Ratio (SNR)
  • Compression
  • Modulation Transfer Function (MTF)

Optimize the performance of your digital breast imaging systems.


The Image Quality Module includes specks, masses and fibers embedded on the central plane.

Tomosynthesis reconstructed image shows bead, wire and ramp test objects.

Modules are clearly marked and visible during testing for easy identification and placement.

The numbered contrast scale measures missing tissue detection.

Breast-glandular and breast-adipose homogeneous modules support testing with various levels of glandularity and thickness.



Specifications

Modular DBT Phantom

Module Name

Target Characteristics

Quantity & Thickness

Image Quality

Specks, masses, fibers. See specifications below.

1 - 15 mm

Missing Tissue Detection

Barium-filled grooves, 1 mm x 0.5 mm, sized from 0 mm to 15 mm

1 - 10 mm

MTF, LSF

2 tungsten wires, 25 micron DIA

1 - 10 mm

CNR

1100 aluminum alloy sheet, 0.1 mm thick, 45° angle

2 - 5 mm

2D and 3D Accuracy

14 tungsten BBs, 0.279 mm DIA, aligned in X, Y and Z-axis

1 - 15 mm

Breast Blank

No targets

1 - 5 mm; 2 - 10 mm

Breast-Glandular Blank

No targets

1 - 10 mm; 1 - 20 mm

Breast-Adipose Blank

No targets

1 - 10 mm; 1 - 20 mm

More
Image Quality Module

Fiber Diameter (mm)

Speck Diameter, Glass Sphere (mm)

Mass Thickness (mm)

0.89 ± 0.05

0.33 ± 0.0100

1.00 ± 0.05

0.75 ± 0.03

0.28 ± 0.0083

0.75 ± 0.05

0.61 ± 0.03

0.23 ± 0.0069

0.50 ± 0.05

0.54 ± 0.03

0.20 ± 0.0059

0.38 ± 0.04

0.40 ± 0.03

0.17 ± 0.0084

0.25 ± 0.03

0.30 ± 0.03

0.14 ± 0.0070

0.20 ± 0.02

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1 Hammerstein R., Miller D., White D., et al; Absorbed Dose in Mammography; RADIOLOGY;130:485-491