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

被引：12
|
作者：
Watanabe, Yoshiyuki [1 ,2 ]
Nakazawa, Tetsuro [1 ]
Higashi, Masahiro [1 ]
Itoh, Toshihide [3 ]
Naito, Hiroaki [1 ]
机构：
[1] Natl Cardiovasc Ctr, Dept Radiol, Osaka, Japan
[2] Osaka Univ, Grad Sch Med, Dept Diagnost & Intervent Radiol, Suita, Osaka 5650871, Japan
[3] Siemens Healthcare, Tokyo, Japan
来源：
AMERICAN JOURNAL OF ROENTGENOLOGY | 2011年 / 196卷 / 06期
关键词：
calcification; carotid CT angiography; dualenergy CT; quantification; CALCIUM;
D O I：
10.2214/AJR.10.4938
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
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.
引用
收藏
页码：W796 / W799
页数：4
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