MED08 Ultrasound Fetus Phantom

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Ultrasound Fetus Phantom

Simulation of biometric measurements such as during pregnancy, investigation of image artifacts

The ultrasound fetus phantom is used to reproduce biometric measurements as they are performed during a pregnancy examination. It is also used to investigate image artifacts in the ultrasound image that are caused by phenomena of ultrasound propagation or by signal and image processing steps.

Keywords: Ultrasound diagnostics, sonography, A-image, B-image, fetometry, transmit power, total gain, TGC, dynamic range, measurement depth, artifacts

Sonographic examinations during pregnancy are standard today. In addition to assessing the position of the child and placenta, the amount of amniotic fluid or the heartbeat, the fetus is also measured (fetometry = biometry of the fetus). Depending on the age of the fetus, various biometric dimensions (head circumference, femur length, etc.) are determined. Using these dimensions, the age of a fetus can be estimated. If the age is known, the doctor can use the measured values ​​to assess whether the fetus is developing according to its age or whether there are any malformations or developmental delays. In conjunction with the GS200i echoscope and a convex multi-element ultrasound probe for the abdominal area, the basics of sonographic fetometry can be taught on the GAMPT ultrasound fetus phantom during preclinical training.

Note: Please only use water (not gel) as a coupling medium. The water should be poured into the upper part of the phantom so that the converter can be immersed properly.

After selecting suitable measurement parameters and optimally setting the ultrasound image of the fetus, it is measured. Based on the determined fetometric parameters (crown-rump length: approx. 105 mm, frontooccipital and biparietal diameter: approx. 44 mm and 30 mm, head circumference: approx. 118 mm, femur length: approx. 25 mm), the age of the fetus is estimated at approx. 17 weeks.
Dark areas can appear in the ultrasound image below the femora. These acoustic shadows are an example of artifacts in sonograms that must be taken into account when evaluating them.


Item No. Designation
10410 Ultrasonic echoscope GS200i
10412 Ultrasound B-scan device Gi210
10430 Ultrasound fetus phantom


PHY01 Basics of ultrasound echography (A-scan)
PHY08 Ultrasound B-scan
MED07 Ultrasound test phantom
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