General & Small Parts Ultrasound Phantom ATS 549
The Model 549 General & Small Parts phantom is an easy, comprehensive means of evaluating imaging systems with an operating frequency range of
2.25 to 15.0 MHz. The first 6 cm of this model has been designed to accommodate the higher frequencies, whereas the area between 6-30 cm is reserved
for frequencies less than 7.5 Mhz. The scanning wells when filled with water provide an ideal means to evaluate endoscopic probes. Simply lie the
active area of the transducer onto the surface of the phantom, the procedure is the same as for any standard linear transducer.
The Model 549 is designed with a combination of monofilament line targets for distance measurements and tissue mimicking target structures of varying
sizes and contrasts. One hundred and twenty (120) cystic-like target structures are positioned in-line vertically, thereby permitting an entire target
group to be displayed in one view. Due to the acoustic similarity of the background material and the target structures, artifacts caused by distortion,
shadowing or enhancement have been eliminated. Six gray scale targets ranging in contrast from +15 to -15 dB are provided to evaluate the system’s
displayed dynamic range and gray scale processing performance.
**Lifetime Warranty**
Tests Performed
- Dead Zone or Ring-Down
- Vertical Measurement Calibration
- Horizontal Measurement Calibration
- Sensitivity/Penetration
- Functional Resolution
- Focal Zone
- Axial & Lateral Resolution
- Image Uniformity
- Gray Scale & Display Dynamic Range
Uses:
- Quality Assurance
- Routine Clinical Performance
- In-Process Manufacturing
- Research & Development
- Teaching
Includes Carrying Case & Built-in Scan wells.
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Specifications
General
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Overall Dimensions |
36.5 x 25.7 x 9.5 cm |
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Housing Material |
PVC |
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Wall Thickness |
1.0 cm* |
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Scan Surfaces |
4 |
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Scan Surface Dimensions |
21.0 x 7.0 cm
31.5 x 7.0 cm |
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Weight |
7.1 Kg (15.5lb) |
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Tissue Mimicking Material
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Type |
Urethane Rubber |
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Freezing Point |
<-40°C |
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Melting Point |
>100°C |
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Attenuation Coefficient |
0.5 dB/cm/MHz± 5.0%** |
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Speed of Sound |
1450 m/s ± 1.0% at 23°C |
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Line Targets
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Material |
Monofilament Nylon |
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Diameter |
0.05 mm & .12 mm |
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Position Tolerance |
± 0.1 mm |
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Vertical Group
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Interval Spacing
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Depth 1.0 - 6.0 cm
Depth 6.0 - 30.0 cm
Depth
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.5 cm
1.0 cm
1.0 - 30.0 cm
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Horizontal Group
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Number of Groups
Interval Spacing
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Depths
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Linear Array Group
Sector/Convex Array Group
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8
1.0 cm
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2.0, 5.0, 14.0, 20.0 cm
2.5, 5.5, 15.0, 21.0 cm
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Dead Zone Group |
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Lateral Displacement |
5.0 mm |
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Interval Spacing |
1.0 mm |
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Deotg |
2.0 - 10.0 mm |
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Axial-Lateral Resolution Group
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Depths (first axial target)
Scan surface 1
Scan surface 2
Scan surface 4
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2.5, 5.5, 15, 21.0 cm
7.0 cm
13, 19, 28.5, 31.5 cm
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Anechoic Target Structures
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Type
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Non-echogenic, cylindrical |
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Group 2, 3, 4, mm |
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Targets in each group |
30 |
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Diameters |
2.0, 3.0, 4.0 mm |
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Depth Scan Surface 1 |
1.0 - 30.0 cm |
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Group 6, 8 mm |
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Targets in each group |
15 |
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Diameters |
6.0, 8.0 mm |
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Interval Spacing (center to center) |
2.0 cm |
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Depth Scan Surface 1 |
2.0 - 30.0 cm |
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Gray Scale Target Structures
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Type |
Echogenic, Cylindrical |
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Number of Targets |
6 |
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Diameters |
10.0 mm |
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Depth |
5.0 cm |
Contrast relative to background
material (dB) |
+15, +6, +3, -3, -6, -15 |
*Nominal Dimensions
**Other attenuations are available upon request
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