In ultrasound physics, the Far zone, or Fraunhofer zone, is the region beyond the natural focus of an ultrasound beam. Within this divergent field, the beam widens, leading to decreased intensity and reduced lateral resolution. Understanding the Far zone is crucial for medical imaging, as it affects image quality in deeper tissues.
Sonographers adjust parameters like gain and depth to compensate for signal attenuation and maintain diagnostic clarity in the Far zone. Proper management of this region ensures accurate visualization of deeper anatomical structures, which is essential for comprehensive medical and ultrasound diagnostics.
