MORGATE BiomédicalDispositifs Médicaux > Fantômes d'Echographie en Mode B
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