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AJR Am J Roentgenol. 2011 Jun;196(6):W796-9. doi: 10.2214/AJR.10.4938.

Assessment of calcified carotid plaque volume: comparison of contrast-enhanced dual-energy CT angiography and native single-energy CT.

Author information

1
Department of Radiology, National Cardiovascular Center, Osaka, Japan. watanabe@radiol.med.osaka-u.ac.jp

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.

PMID:
21606272
DOI:
10.2214/AJR.10.4938
[Indexed for MEDLINE]

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