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Insights into Imaging
Fig. 12 | Insights into Imaging

Fig. 12

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

Fig. 12

Schematic representation of contemporary local attenuation algorithms. a A region of interest within a B-mode image is discretized into rectangular measurement windows to locally estimate the attenuation coefficient α. b Spectral difference method, (c) spectral shift method, (d) compensation for diffraction and ultrasound system focusing using the reference phantom method, and (e) estimation and display of the local attenuation coefficient

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