In 1960 Hitachi gave the world its first Diagnostic Ultrasound System. A technology using ultrasonic waves to visualize the inside of the body made ultrasound a vital tool to “see in real time”. Over the past 60-years this diagnostic technology of seeing with ultrasound has continued to evolve. As innovation has accelerated for both system functionality and transducer design it has also allowed for the compatibility with other modalities and medical technologies. Today, the diagnostic fields where ultrasound systems are used continue to expand, making this technology an indispensable pillar of contemporary medicine.
NOBLUS - Advanced Versatile Ultrasound Scanner
Real-time Tissue Elastography (RTE) .pdf (Article paper)
An important characteristic of tissue is its elasticity which changes through pathophysiological processes, in particular, chronic or acute inflammation, malignancy and aging processes all of which can affect the elastic nature of tissues. Therefore the assessment and visualization of tissue elasticity can provide potentially vital information in disease diagnosis.
Real-time Tissue Elastography module uses an Extended Combined Autocorrelation Method (ECAM) to produce an elasticity image in real time. It uses a freehand approach to compress the tissues with the ultrasound transducer - a technique which is easily integrated into the routine ultrasound examination.
Compression comparison characteristics of amplitudes
Relative tissue elasticity is calculated and displayed as a colour overlay of the conventional B-mode image. Stiffer tissue structures are displayed in blue, while the more easily deformed tissues are in red.
The ECAM elastography algorithm performs a 2D correlation in both axial and lateral directions, overcoming the problem of sideslip and improving the accuracy of the strain image.
Clinical evaluation of the modality has shown that lesions can be characterised more rapidly and with a higher degree of accuracy, when elastography is incorporated into the conventional examination.