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Near Field Ultrasound Phantom CIRS 050
The CIRS series of ultrasound phantoms, unlike human subjects or random scannable materials, offers a reliable medium which contains specific, known test objects for repeatable qualitative assessment of ultra sound scanner performance over time.
At normal or room temperatures the Zerdine® (1) material found in the Near Field phantom will accurately simulate the ultrasound characteristics found in human tissue. The Model 050 has a series of wire targets that will appear as bright dots or lines on the ultrasound image. These targets are made from stainless steel with a diameter of 0.10 mm and a positional accuracy of ± 0.2 mm. There are also two known volumes, a 10 mm anechoic/+15 dB mass and anechoic focal lesions embedded within the phantom. These “masses” are made from Zerdine® that has a different contrast and attenuation relative to the background material.
The Model 050 was designed to allow for assessment of uniformity, dead zone, depth of penetration, beam profile/focal zone/lateral response width, vertical distance measurement accuracy, axial resolution, lateral resolution, anechoic masses, high contrast masses, volumetric measurement accuracy, and focal lesion detectability.
Model 050 Specifications Material: Zerdine®(1), solid elastic water-based polymer
Freezing Point: 0° C
Melting Point: Above 100° C
Attenuation Coefficient: 0.5 dB/cm/MHz
Speed of Sound: 1540 m/s
Scanning Well: 165 mm X 100 mm X 1.5 cm
Scanning Membrane: Saran-based laminate
Targets:
Material: Stainless Steel Wire
Diameter: 0.1 mm
Vertical Plane Targets:
Depth Range: 8 cm
Spacing: 1 cm
Axial Resolution Targets:
Number of Arrays: 2
Depths: 1.5cm and 2cm
Axial Intervals: 0.5, 1,2,3,4 and 5mm
Horizontal Intervals: 1,2,3,4 and 5 mm
Ring Down Target:
1 mm to 10 mm
Volumetric Test Object:
Calibrated asymmetric shape 7 cc and 21 cc
Spherical Cysts:
Diameter: 5 mm, 3 mm Random Distribution.
High Contrast/Cystic:
Cylinder: Diameter 10 mm
Depth: 1.0 cm
Contrast: HSdB/anechoic
Depths: 1.5 cm and 2 cm
Axial Intervals: 0.5, 1 , 2, 3, 4, and 5 mm
Horizontal Intervals: 1, 2, 3, 4, and 5 mm
Phantom comes with detachable scanning wells to accommodate large sector probes and small endocavity probes. It is packaged in a hermetically sealed, air tight, rugged carrying case.
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