Contrast Resolution Ultrasound Phantoms ATS 512A & 512B
The Models 512A and 512B Contrast Resolution phantoms are composed of a hydrogel-based tissue-mimicking material. The phantoms are contained in an
acrylic housing to provide strength and permanence. A soft polyurethane film with an impedance closely matching human skin is used, thereby allowing
easy transmission of the ultrasound beam into the phantom. These models are provided with a built-in scanning well to permit the use of water or a low
viscosity gel as a coupling medium.
The Contrast Resolution phantoms are designed to evaluate an imaging system’s gray scale processing and displayed dynamic range. Both models contain
three target sizes at eight levels of contrast, ranging from -3 to +12 dB/cm/MHz relative to the background material.
The difference between the models is the size of the targets.
The Model 512A contains 2, 4 and 8 mm cylindrical targets.
The Model 512B contains cylindrical targets of 5, 10, 20 mm.
Tests Performed
-
Functional Resolution
-
Definition and fill-in
-
Gray Scale
-
Displayed Dynamic Range
|
Uses
- Quality Assurance
- Final Q.A. Inspection
- Research & Development
|
Specifications
General
|
Overall
dimensions |
30.5 x 14.5 x 13.5 cm* |
|
Weight: |
6.4 Kg* |
|
Housing Material: |
Acrylic |
|
Wall Thickness: |
1.0 cm* |
|
Scanning Material: |
Polyurethane membrane |
|
Dimensions: |
28.5 x 13.5 cm* |
Tissue Mimicking Material
|
Type: |
Hydrogel |
|
Speed of Sound: |
1540 m/s at 23°C |
|
Attenuation (Background): |
0.5 dB/cm/MHz |
|
Freezing Point: |
0°C |
|
Melting Point |
49°C |
|
Gray Scale Targets
|
Type: |
Cylindrical, echogenic |
|
Total number of targets |
24 |
|
Target groups: |
3 |
|
Diameters
|
Model 512A
Model 512B
|
|
|
|
2.0, 4.0, 8.0, mm ± 5.0%
5.0, 10.0, 20.0, mm ± 5.0%
|
|
|
Horizontal Spacing: |
3.0 cm (center to center) ± 0.1 mm
|
|
Depth: |
7.5 cm ± 1.0 mm |
Contrast relative to the
background material: |
-3 to +12 dB |
|
*Nominal dimensions |
Warranty 1 years |
|
