As depth increases, lateral resolution tends to:

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Multiple Choice

As depth increases, lateral resolution tends to:

Explanation:
Lateral resolution in ultrasound depends on how narrow the beam is at a given depth. As depth increases, the beam naturally spreads due to diffraction, and unless focusing keeps it tight, the beam width widens. A wider beam means two closely spaced points side by side are harder to distinguish, so lateral resolution gets worse. In practice, focusing can improve resolution within a certain depth range, but beyond the focus the beam broadens again, leading to deteriorating lateral resolution with increasing depth.

Lateral resolution in ultrasound depends on how narrow the beam is at a given depth. As depth increases, the beam naturally spreads due to diffraction, and unless focusing keeps it tight, the beam width widens. A wider beam means two closely spaced points side by side are harder to distinguish, so lateral resolution gets worse. In practice, focusing can improve resolution within a certain depth range, but beyond the focus the beam broadens again, leading to deteriorating lateral resolution with increasing depth.

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