What is the primary purpose of harmonics in ultrasound imaging?

The primary purpose of harmonics in ultrasound imaging is to improve image quality by reducing artifacts. Harmonic imaging leverages the nonlinear behavior of ultrasound waves as they propagate through tissue. Specifically, when these waves encounter various tissue structures, they produce higher-frequency harmonics that can be detected and used to create images. By focusing on these harmonic frequencies, the ultrasound system can enhance the overall resolution and clarity of the images while also minimizing the impact of artifacts that may obscure important diagnostic information.

The use of harmonics allows for greater contrast resolution and improved tissue characterization, leading to more accurate assessments. This is particularly beneficial in challenging imaging environments, such as in patients with high body mass index or in areas with complex anatomy. In essence, the incorporation of harmonic imaging is a powerful tool that significantly enhances the quality of ultrasound examinations, allowing for better diagnosis and patient outcomes.