elastogram

elastogram

An image of tissue strain obtained by elastography, which reflects the degree of adherence of a tumour to the surrounding soft tissue.
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The frequency was adjusted from 2 Hz to 4 Hz depending on each individual and condition so that the elastogram was sufficiently superimposed on the ROI.
Ultrasonography elastogram was displayed over the B-mode image in a colour scale comprising, red for nodes with greatest elastic strain (soft), green for intermediate and blue for nodes with no strain (hardest) as shown in Figure 2.
We are not there yet, but have found in our initial studies that if the elastogram shows normal stiffness then we may not need to biopsy.
The elastography grading score can be affected by subjective factors because it is usually recorded according to the elastogram color distribution characteristics.
The elastogram was exhibited over the B-mode image in a colour scale: red (greatest strain, softest component) and blue (no strain, hardest component) tissue.
Of the 140 biopsies, the elastogram image correlated with the standard B-mode ultrasound image in 58 of the 59 cancers (98%), said Dr.
Of the 69 benign findings observed, the elastogram and B-mode ultrasound images correlated in 54 (78%) of cases.
Additional capabilities include S-Shearwave for detecting the velocity of the shearwave transmitted through the lesion and displaying the measurement of stiffness; E-Breast for calculating the strain between the region of interest (ROI) and normal breast fat and displaying the results; and E-Thyroid where the ROI is used to show the contrast of an elastogram.
In order to measure liver stiffness (LS) values of the hepatic parenchyma, three round-shaped (2-3 cm in diameter) regions of interest (ROI) were placed in liver on the elastogram map referring to T1-weighted image, avoiding major hepatic vessels and branches, large bile ducts, liver edges, and motion artifacts.
The images of wave propagation are interpreted and processed by inversion algorithms, which results in a tissue stiffness map called an elastogram from which the tissue stiffness is measured.
1% strain and uses temporal persistency strategy to enhance the descriptive pattern in the elastogram.
On an elastogram, low strain values are usually displayed as dark and large strain values as bright (Figure 3).