Applications & Ressources > Fantômes d'Echographie en Mode B

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Model 523

Model 523, the Doll Head Phantom

 

Theory:   

 

This phantom is for 3-D reconstruction of US images.

 

Description:

 

An echo rich copy of a doll head is placed in an echo poor background.

 

Specifications:

 

Outer dimensions: 17 * 18,5 * 18,5 cm. Weight: 4,5 kg. The size of the Doll Head is about 138 ml, it can be specified with 1 decimal. Background mass: Sound speed 1500 m/sec +/-15 m/sec. Attenuation, backscattering and density: not specified.

 

Practice:

 

Use large amount of scanning jelly or if the transducer can tolerate it, just water, or the preservative fluid. Avoid pressing the transducer into the phantom.

 

Maintenance:

 

Once every month inspect the phantom.

The surface must always be covered with 1/2 - 1 cm preservative fluid.  Fluid that disappears by desiccation should be replaced by distilled water.

Once every 3 month replace the preservative fluid.

Please notice that the lid may not be 100 % tight. Drain fluid off before transportation, but never let it stay dry more than a few days.

The phantom will not stand frost. Safe storage temperature: 0 - 45 degrees Celsius.

 

 

Prescription for Preservative Fluid

-500 ml Distilled Water

- 2,5 g Acnibio OCS

- 0,5 g Citric ascid