What happens to the focal depth when focusing the beam?

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Multiple Choice

What happens to the focal depth when focusing the beam?

Explanation:
Focusing the beam creates a convergence of the ultrasound waves to a defined point along the path. When the focus is set, the energy peaks at a depth closer to the transducer, making the focal depth shallower. This concentrates resolution at that nearer depth, though it also shortens the overall depth of field. If deeper targeting is needed, the focus can be adjusted to occur farther away.

Focusing the beam creates a convergence of the ultrasound waves to a defined point along the path. When the focus is set, the energy peaks at a depth closer to the transducer, making the focal depth shallower. This concentrates resolution at that nearer depth, though it also shortens the overall depth of field. If deeper targeting is needed, the focus can be adjusted to occur farther away.

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