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

作者：Watanabe Yoshiyuki^*; Nakazawa Tetsuro; Higashi Masahiro; Itoh Toshihide; Naito Hiroaki

来源：American Journal of Roentgenology, 2011, 196(6): W796-W799.

DOI：10.2214/AJR.10.4938

• calcification
• carotid CT angiography
• dualenergy CT
• quantification

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.

• 出版日期2011-6