ULTRASOUND RESOLUTION PHANTOM MODEL 044 - DESIGNED FOR EVALUATING SYSTEM RESOLUTION

Ultrasound Resolution Phantom

Designed for evaluating system resolution

Model 044 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 ultrasound scanner performance over time. This phantom is constructed from the patented solid elastic material, Zerdine?1). Zerdine, unlike other phantom material on the market, is not affected by changes in temperature. It can be subjected to boiling or freezing conditions without sustaining significant damage. Zerdine is also more elastic than other materials and allows more pressure to be applied to the scanning surface without subsequent damage to the material. At normal room temperature, the Zerdine material found in the Model 044 will accurately simulate the ultrasound characteristics found in human liver tissue. The Model 044 consists of two planes of short cylinders. One plane has an attenuation coefficient of 0.5 dB/cm/MHz while the other is 0.7 dB/cm/MHz. Each plane has two groups of targets. The 12 mm diameter test objects have three contrasts with respect to the background enabling low contrast resolution assessment at many depths. All other targets have a -15 dB contrast. To facilitate proper probe alignment, the Model 044 contains a series of nylon targets. The phantom includes a sturdy carrying case and certification sheet. The Model 044 is ideal for simultaneous assessment of axial, lateral, and elevational resolution. (1) US PATENT# 5196343