Signal dropout on US probe due to dead element

Case contributed by Dr Bálint Botz

Presentation

US probe regularly used for biopsies.

Routine inspection of in-air reverberation pattern reveals a tiny defect of the scan field, better appreciated with a reduced depth, and increased B-mode gain. Note that the artifact is relatively obscure, as a barely discernible band of reduced echogenicity during normal use.

Case Discussion

The ultrasound probe defect was caused by a barely visible puncture of the probe lens, resulting in the characteristic dropout artifact due to the dead piezo element. 

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