Key result
In an in vitro flow phantom model, the volumetric pulsatility index (vPI) was substantially less dependent on color gain adjustments at no-noise gains compared to the VI and VFI.
Why the study?
Does color gain adjustment affect 3-dimensional power Doppler indices and volumetric pulsatility indices in an in vitro flow phantom model?
Population
In vitro flow phantom model
Comparison
Color gain adjustment vs Different levels of color gain
Design
Preclinical
Authors
Loading...
vPI may yield more consistent volumetric measurements; leaves open in vivo validation before clinical adoption.
Does color gain adjustment affect 3-dimensional power Doppler indices and volumetric pulsatility indices in an in vitro flow phantom model?
The volumetric pulsatility index (vPI) is less affected by changes in color gain than traditional 3D power Doppler indices, suggesting it may offer more consistent measurements across different machine settings.
Miyague et al. (2013) studied this question. Color gain adjustment vs. Different gain bands was evaluated on Effect of color gain on vascularization index (VI), vascularization-flow index (VFI), and volumetric pulsatility index (vPI). In an in vitro flow phantom model, the volumetric pulsatility index (vPI) was substantially less dependent on color gain adjustments at no-noise gains compared to the VI and VFI.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: