Coronary risk assessment at X-ray dose equivalent ungated chest CT: Results of a multi-reader study

被引：7

作者：

Messerli, Michael ^{[1
,2
]}

Hechelhammer, Lukas ^{[1
]}

Leschka, Sebastian ^{[1
,3
]}

Warschkow, Rene ^{[4
]}

Wildermuth, Simon ^{[1
]}

Bauer, Ralf W. ^{[1
]}

机构：

[1] Cantonal Hosp St Gallen, Div Radiol & Nucl Med, St Gallen, Switzerland

[2] Univ Zurich, Univ Hosp Zurich, Dept Nucl Med, Zurich, Switzerland

[3] Univ Zurich, Univ Hosp Zurich, Inst Diagnost & Intervent Radiol, Zurich, Switzerland

[4] Cantonal Hosp St Gallen, Dept Surg, St Gallen, Switzerland

来源：

CLINICAL IMAGING | 2018年 / 49卷

关键词：

Computed tomography; Ultra-low dose; Coronary artery disease; Coronary artery calcium; Iterative reconstruction; Tin filtration; STANDARD AGATSTON SCORE; LUNG SCREENING TRIAL; COMPUTED-TOMOGRAPHY; ARTERY CALCIUM; CARDIAC CT; CANCER; CALCIFICATION; SCANS; QUANTIFICATION; GUIDELINES;

D O I：

10.1016/j.clinimag.2017.10.014

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：

Objectives: To determine the value of ultra-low dose chest CT with tin filtration for ordinal coronary artery calcium (CAC) risk scoring. Methods: 50 patients were prospectively included and underwent clinical standard dose chest CT (1.8 +/- 0.7 mSv) and ultra-low dose CT (0.13 +/- 0.01 mSv). Four radiologists estimated presence and extent of CAC. Results: Weighted kappa values for CAC were 0.76-0.97 in standard dose and 0.75-0.95 in ultra-low dose CT (p < 0.001). Good to excellent agreement was observed for CAC ordinal risk assessment, with readers reporting identical risk in 81% of cases. Conclusion: CAC risk can be qualitatively assessed from X-ray dose equivalent ungated chest CT.

引用

页码：73 / 79

页数：7

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