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.

General & Small Parts Ultrasound Phantom ATS 549 Target Diagram
Specifications

General

Overall Dimensions 36.5 x 25.7 x 9.5 cm
Housing Material PVC
Wall Thickness 1.0 cm*
Scan Surfaces 4
Scan Surface Dimensions 21.0 x 7.0 cm
31.5 x 7.0 cm
Weight 7.1 Kg (15.5lb)

Tissue Mimicking Material

Type Urethane Rubber
Freezing Point <-40°C
Melting Point >100°C
Attenuation Coefficient 0.5 dB/cm/MHz± 5.0%**
Speed of Sound 1450 m/s ± 1.0% at 23°C

Line Targets

Material Monofilament Nylon
Diameter 0.05 mm & .12 mm
Position Tolerance ± 0.1 mm
Vertical Group
Interval Spacing
Depth 1.0 - 6.0 cm
Depth 6.0 - 30.0 cm
Depth
 
 
.5 cm
1.0 cm
1.0 - 30.0 cm
Horizontal Group
Number of Groups
Interval Spacing
Depths
Linear Array Group
Sector/Convex Array Group
 
8
1.0 cm
 
2.0, 5.0, 14.0, 20.0 cm
2.5, 5.5, 15.0, 21.0 cm

 

Dead Zone Group  
Lateral Displacement 5.0 mm
Interval Spacing 1.0 mm
Deotg 2.0 - 10.0 mm
Axial-Lateral Resolution Group
Depths (first axial target)
Scan surface 1
Scan surface 2
Scan surface 4
 
 
2.5, 5.5, 15, 21.0 cm
7.0 cm
13, 19, 28.5, 31.5 cm

Anechoic Target Structures

Type Non-echogenic, cylindrical
Group 2, 3, 4, mm  
Targets in each group 30
Diameters 2.0, 3.0, 4.0 mm
Depth Scan Surface 1 1.0 - 30.0 cm
Group 6, 8 mm  
Targets in each group 15
Diameters 6.0, 8.0 mm
Interval Spacing (center to center) 2.0 cm
Depth Scan Surface 1 2.0 - 30.0 cm

Gray Scale Target Structures

Type Echogenic, Cylindrical
Number of Targets 6
Diameters 10.0 mm
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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