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Figure 3 | Cardiovascular Ultrasound

Figure 3

From: Visualization of multimodal polymer-shelled contrast agents using ultrasound contrast sequences: an experimental study in a tissue mimicking flow phantom

Figure 3

Off-line measurements. A) Illustration of the contrast to tissue ratio (CTR) measurements in the short axis view of the flow phantom. Two identical regions of interest (ROIs) were placed at the same depth in the short axis view; ROIVessel (1) and ROITissue (2), B) Illustration of the acoustic shadowing measurements with two identical ROIs placed underneath each other in the phantom vessel lumen; ROIupper(1) and ROIlower (2).

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