The range resolution is the ability to determine the depth of reflectors.

To calculate the echo position, a constant sound speed of 1538.5 m/sec is assumed. Tissue penetration is frequency depended, if the frequency increases, the imaging depth decreases. The range resolution defines the depth. Ultrasound propagating in tissue is attenuated due to scattering and absorption. The attenuation is proportional to depth and frequency and is typically in the range from 0.5 to 1 dB/(MHz cm).

See also Attenuation Coefficient, Proximity Sensor, and Echo Ranging.

From ALOKA Co., Ltd.;
'Superior Performance and Versatility
Based on decades of experience, the SSD-1000 is a high performance and versatile diagnostic ultrasound system. It uses our advanced technologies and over 5 decades of innovative ultrasound experience. Using the same technology as our more expensive systems, the SSD-1000 provides superior imaging capabilities in a compact and mobile setting.
We also employ Super High Density transducers (found our high-end systems) to enhance imaging resolution. High-quality images help you accurately diagnose patients in less time.
The SSD-1000 provides a fine balance of superb imaging and ergonomic design, well suited for a wide range of clinical examinations.'

From GE Healthcare.;
'GE is defining a new age of ultrasound. We call it Volume Ultrasound. GE's Voluson 730 Expert is a powerful system that enables real-time techniques for acquiring, navigating and analyzing volumetric images so that you can make clinical decisions with unprecedented confidence.'

From GE Healthcare.;
'Vivid 7 Dimension, a premier cardiovascular ultrasound system from GE Healthcare, expands on the strength of a powerful imaging platform to offer new, innovative technology of dimensional proportions.'