Different sound velocities in tissue are causing refraction artifacts. With convex elastomer lens transducers, sound beam refraction at the skin interface can alter the transducer's focusing characteristics and beam profile, cause element to element nonuniformity, and cause phase changes in the acoustic wave. These cumulative refraction induced errors degrade the image quality through distortion and loss of resolution. Because the amount of refraction is proportional to the velocity mismatch, the greater the mismatch, the greater the refraction.

Release burst imaging is a method based on the combination of multiple high frequency, broadband-detection pulses with a separate release burst. Release burst imaging is optimally suited to the characteristic of ultrasound contrast agents.
This method allows to improve both contrast sensitivity and imaging resolution. Imaging and transient enhanced scattering can be optimized separately. The release burst mode can be combined with a Doppler method to remove residual clutter signals from moving tissue.

See also Repetition Rate.

From Medison Co.,Ltd.;
'SONOACE 8000 EX PRIME, combines evolutionary C-Square technology and PSAD Beamformer in addition to our next-generation digital beamforming technology with state-of-the-art intelligent digital signal processing. SONOACE 8000 EX PRIME creates images with outstanding detail and spatial resolution that will add new clarity to your diagnoses.'

From Medison Co.,Ltd.;
'Full-featured Digital Imaging On Your Desktop
The SONOACE PICO is a full-featured digital color ultrasound system with virtually all the imaging capabilities you would expect from a cart-based system with the added benefit of being fully portable. Built on a reliable Linux PC platform, the SONOACE PICO boasts all- digital beamforming and signal processing for best-in-class image resolution enhanced by a long list of advanced diagnostic tools such as harmonic imaging, color and power Doppler, and freehand 3D imaging.'

From Medison Co.,Ltd.;
'SONOVET 600 and Veterinarian
SONOVET 600 provides an improved image quality for accurate and reliable diagnosis for bovine and equine reproductive organ scanning, and small animal general abdominal examination. For higher resolution imaging, the industry standard linear and convex probes are available with the extensive measurement function.'