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Insights into Imaging
Fig. 8 | Insights into Imaging

Fig. 8

From: Quantitative ultrasound imaging of soft biological tissues: a primer for radiologists and medical physicists

Fig. 8

Simple interpretation of QUS imaging modes. Tissues T1 and T2 when interacting with a compression wave emitted by the transducer are characterized by different QUS properties evaluated by the speed of sound (SoS), attenuation, and backscatter coefficient measures. The interpretation of QUS parameters in this example is based on the B-mode representation of the tissue. a Compared with a reference tissue T1 that has a speed of sound of 1540 m/s, tissue T2 that has a higher speed of sound would appear compressed because distances on clinical ultrasound systems are measured with the assumption that all tissues behave with an SoS = 1540 m/s. b Tissue T2 that has a higher attenuation would appear hypoechoic in deeper locations. c Tissue T2 that has a higher backscatter would appear hyperechoic on B-mode imaging

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