Key result
Power Doppler imaging provided significantly more excellent or good displays of the intrastenotic lumen than color Doppler flow imaging (92% vs 79%; P<.01).
Why the study?
Does Power Doppler imaging (PDI) improve the assessment and visualization of internal carotid artery (ICA) stenosis compared to color Doppler flow imaging (CDFI) and angiography in patients with ICA stenosis?
Population
100 patients with a total of 128 internal carotid artery (ICA) stenoses (50% to 99%) and 12 ICA occlusions
Comparison
Power Doppler imaging (PDI) vs Color Doppler flow imaging and intra-arterial…
Design
Cross-sectional
Authors
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May support PDI for ICA stenosis visualization; leaves open prospective validation versus angiography.
Observational (n=100)
Does Power Doppler imaging (PDI) improve the assessment and visualization of internal carotid artery (ICA) stenosis compared to color Doppler flow imaging (CDFI) and angiography in patients with ICA stenosis?
Absolute Event Rate: 92% vs 79%
p-value: p=<.01
Power Doppler imaging improves the visualization of the stenotic vascular lumen in internal carotid artery stenosis compared to color Doppler flow imaging.
Steinke et al. (1997) conducted an observational in Internal carotid artery (ICA) stenosis (n=100). Power Doppler imaging (PDI) vs. Color Doppler flow imaging (CDFI) and intra-arterial angiography was evaluated on Excellent or good display of the intrastenotic lumen (p=<.01). Power Doppler imaging provided significantly more excellent or good displays of the intrastenotic lumen than color Doppler flow imaging (92% vs 79%; P<.01).
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