What principle is used to measure the intensity of ultrasound?

Dosimetry is the key principle used to measure the intensity of ultrasound. This process involves quantifying the dose or intensity of ultrasound energy delivered to a particular area during sonographic procedures. It is essential to monitor ultrasound exposure to ensure patient safety and maintain compliance with established safety standards.

This measurement is crucial in assessing potential effects of ultrasound on biological tissues and ensuring that the intensity levels used in various applications, including diagnostic imaging and therapeutic procedures, remain within safe limits. By using dosimetry, practitioners can evaluate the efficacy and safety of ultrasound applications, adjust settings appropriately, and contribute to the evolving knowledge of ultrasound's impact on tissues.

Other principles and techniques, while important in sonography, do not specifically focus on measuring ultrasound intensity. B-mode imaging is a form of displaying reflected ultrasound waves to create two-dimensional images of tissues. The pulse-echo technique refers to the fundamental method by which ultrasound images are obtained, based on sending pulses of ultrasound and receiving the echoes. Thermal output measurement examines the heat generated by ultrasound during its application but does not encompass the broader scope of dosimetry, which includes intensity measurements as part of safety protocols.