In clinical imaging, the frequency range is typically from which two values?

In clinical imaging, the frequency range is typically from which two values?

• A. 1 to 3 MHz
• B. 5 to 15 MHz
• C. 10 to 20 MHz
• D. 2 to 10 MHz

Answer: (D)

In clinical ultrasound, frequency is chosen to balance how deeply the sound can penetrate with how sharp the image will be. Lower frequencies go deeper but show less detail, while higher frequencies give finer detail but don’t penetrate as far. A broad, practical operating range used for general imaging is about 2 to 10 MHz. This range covers deep structures like abdominal organs while still providing good resolution for many features in superficial tissues. Frequencies below 2 MHz tend to produce images that are too coarse for most diagnostic needs, and frequencies above 10 MHz, though very detailed, don’t reach deep tissues well. That makes 2 to 10 MHz the most versatile and commonly used range.

In clinical ultrasound, frequency is chosen to balance how deeply the sound can penetrate with how sharp the image will be. Lower frequencies go deeper but show less detail, while higher frequencies give finer detail but don’t penetrate as far. A broad, practical operating range used for general imaging is about 2 to 10 MHz. This range covers deep structures like abdominal organs while still providing good resolution for many features in superficial tissues. Frequencies below 2 MHz tend to produce images that are too coarse for most diagnostic needs, and frequencies above 10 MHz, though very detailed, don’t reach deep tissues well. That makes 2 to 10 MHz the most versatile and commonly used range.