What key factor affects the quality of ultrasound images?

The frequency of the ultrasound transducer used is a fundamental aspect that significantly affects the quality of ultrasound images. The frequency determines the wavelength of the sound waves emitted by the transducer, which in turn influences the resolution and penetration depth of the ultrasound. Higher frequencies provide better resolution, allowing for clearer images of superficial structures, but they have limited penetration capabilities. Conversely, lower frequencies penetrate deeper into the tissues but result in lower image resolution.

In ophthalmic ultrasound specifically, using the appropriate frequency is crucial for effectively visualizing structures in the eye, such as the retina and the optic nerve. By selecting the appropriate frequency based on the depth and type of tissues being examined, technicians can optimize image quality for accurate diagnosis and assessment. This makes frequency a key factor in producing high-quality ultrasound images.