In a mechanical transducer consisting of a single crystal, what happens when the crystal malfunctions?

• A. Entire Image Is Lost
• B. Partial Image Distortion
• C. Brightness Reduction
• D. Minor Artifacts

Answer: (A)

When a mechanical transducer uses a single crystal, that one element handles both sending and receiving ultrasound. If that crystal malfunctions, there’s no signal being generated or detected at all, so the system cannot form any image. In other words, the entire image goes blank because there’s no data from any depth or angle being collected.

This isn’t the same as partial distortion or brightness changes you’d see with multiple elements where only some channels fail or the signal is uneven. With a single element, there’s no redundancy to compensate, so a failure means a total loss of image rather than localized artifacts or reduced brightness.