Skip to main content
Figure 3 | Critical Care

Figure 3

From: Bench-to-bedside review: Contrast enhanced ultrasonography - a promising technique to assess renal perfusion in the ICU

Figure 3

Renal perfusion index measurement using dedicated quantification software. A screenshot of Sonotumorâ„¢, shown as an example of software allowing perfusion quantification in contrast-enhanced ultrasonography sequences. The upper segments show the contrast-enhanced images (left) as well as the conventional ultrasound images (right). This is where the reader can draw areas of interest (AOI) that will be analyzed by the software. A replenishment curve (lower segment) is then generated for each AOI. These curves represent the intensity of the echo-power as a function of time after the flash. Bold lines are fitted curves of the actual measured data represented by the clear lines. The fitted curves allow the derivation of a perfusion index (PI) for each AOI.

Back to article page