Assessment of Calcified Carotid Plaque Volume: Comparison of Contrast-enhanced Dual-energy CT Angiography and Native Single-energy CT

Overview

Journal AJR Am J Roentgenol

Specialties Oncology
Radiology

Date 2011 May 25

PMID 21606272

Citations 5

Authors

Yoshiyuki Watanabe

Tetsuro Nakazawa

Masahiro Higashi

Toshihide Itoh

Hiroaki Naito

Affiliations

Soon will be listed here.

Abstract

Objective: The purpose of this study was to compare estimates of calcified plaque volume in the carotid arteries based on contrast-enhanced dual-energy CT angiograms with volume estimates based on native CT scans.

Conclusion: Detection of hard plaque in the carotid arteries with dual-energy CT angiography was successful in all patients. Estimates of calcified plaque volume based on dual-energy CT angiograms correlated well with those based on native single-energy CT scans but at a lower attenuation threshold (130 HU as opposed to 180 HU) were underestimates compared with those on the native CT scans.

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