In ultrasound therapy, increasing frequency primarily affects which parameter?

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Multiple Choice

In ultrasound therapy, increasing frequency primarily affects which parameter?

Explanation:
The main idea is that frequency controls how deeply ultrasound energy penetrates the tissues. Higher frequency is absorbed more quickly, so the energy is deposited nearer the surface and doesn’t travel as far. In contrast, lower frequency can reach deeper layers. Power and time set how much energy you deliver and how long you deliver it, which influences temperature rise, but they don’t determine how deep the energy goes. So when frequency is increased, the depth of penetration becomes the primary parameter affected.

The main idea is that frequency controls how deeply ultrasound energy penetrates the tissues. Higher frequency is absorbed more quickly, so the energy is deposited nearer the surface and doesn’t travel as far. In contrast, lower frequency can reach deeper layers. Power and time set how much energy you deliver and how long you deliver it, which influences temperature rise, but they don’t determine how deep the energy goes. So when frequency is increased, the depth of penetration becomes the primary parameter affected.

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