Wednesday, April 11, 2001
Acuson, a Siemens company, offers a new Tissue Equalization (TEQ)
technology in its Sequoia echocardiography system. "What's different about TEQ
is that it uses algorithms to read the acoustical signals, then optimizes the
image parameters such as gain or dynamic range," says Dr. John Allison, Ph.D.
and vice president of product creation at Acuson.
TEQ identifies whether the ultrasound echoes are coming from the
heart's soft tissue or from artifacts such as bones or cartilage in the
vicinity. Once it distinguishes the heart's soft tissue, it immediately sets the
optimum brightness in soft tissue for echocardiography. It also eliminates "over
gaining" or saturation of echoes when ambient room light cannot be adjusted.
Image optimization is based on tissue-specific acoustical readings.
"Unlike other systems that process images after the fact, TEQ uses
algorithms for reading acoustical waves prior to imagining," says Allson. For
more information go to www.acuson.com.