Near Field Ultrasound Phantom CIRS 050
QA standard for high frequency probes
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 nylon wire 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.
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.
¹ US Patent #5196343
|
Specifications |
|
|
Container Dimensions: 200 x 150 x 100 mm Weight: 18 lbs (6.7 kg) Material: ABS Housing Background gel Zerdine, 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 x 100 x 10 mm deep Scanning Membrane Saran-based laminate Wire Targets Material: Nylon Wire Diameter: 0.10 mm Near Field Group Number of Targets: 10 Depth Range: 1 to 10 mm Vertical Spacing: 1.0 mm VERTICAL Group Depth Range: 10 to 80 mm Spacing: 10 mm Material: 0.1 mm Nylon Wire Axial Resolution Group Number of targets: 12 Depth: 20 mm Spacing: 0.5, 1, 2, 3, 4 & 5 mm |
Lateral Resolution Group Number of targets: 6 Depth: 15 mm Spacing: 1, 2, 3, 4 & 5 mm High Contrast/ Cystic Rod Material: Zerdine Diameter: 10 mm Depth: 10 mm Attenuation Coefficient- Cystic Half: less than 0.07 dB/cm-MHz Contrast- Cystic Half: anechoic Attenuation Coefficient- High Contrast: 1.23 dB/cm-MHz Contrast- High Contrast: hyperechoic Focal Lesions Diameter of Targets: 3 & 5 mm Random Distribution Volumetric Test Objects Material: Zerdine Number of Targets: 2 Speed of Sound: 1540 m/s Attenuation Coefficient: 0.5 dB/cm-MHz Contrast: +9 dB Depths: 20 mm, 47 mm Volumes: 7 cc, 21 cc |
Model 050 Includes
|
|
