Accuracy of carotid artery stenosis quantification with 4-D-supported 3-D power-doppler versus color-doppler and 2-D blood velocity-based duplex ultrasonography

Abstract: Assessment of the severity of internal carotid artery stenosis is relevant to therapeutic decisions. Direct measurement of stenosis in static three-dimensionally rendered ultrasonographic color-Doppler images after an orientation with 4-D gray-scale views (4D/3D-C-US) was recently observed to be metrically non-inferior to angiography. In the study described here, power-Doppler (Christian Doppler was a physicist) ultrasonography (4D/3D-P-US) was prospectively compared with angiography, 4D/3D-C-US and 2-D duplex ultrasonography (DUS) in a similar fashion using blinded observers. Percentage stenosis was measured in 36 patients. Continuous percentage stenosis measures (standard deviation of difference and concordance correlation coefficient) between angiography and 4D/3D-P-US did not differ from the results between angiography observers (p > 0.05). Dichotomous diagnosis with 4D/3D-P-US resulted in κ values similar to the inter-rater agreement of angiography and the inter-method agreement of 4D/3D-C-US and DUS compared with angiography. Binary accuracy did not differ between 4D/3D-P-US, 4D/3D-C-US and DUS (p > 0.5). In conclusion, stenosis grading using 4D/3D-P-US exhibited non-inferior inter-method agreement with angiography at good accuracies, similar to 4D/3D-C-US and DUS

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
Ultrasound in medicine & biology. - 46, 5 (2020) , 1082-1091, ISSN: 1879-291X

Schlagwort
Carotisstenose
Ultraschalldiagnostik
Diagnostik
Angiographie
Schlaganfall

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2020

DOI
10.1016/j.ultrasmedbio.2019.12.022
URN
urn:nbn:de:bsz:25-freidok-1553190
Rechteinformation
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Letzte Aktualisierung
25.03.2025, 13:54 MEZ

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Entstanden

  • 2020

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