Accuracy and Radiation Dose Reduction Using Low-Voltage Computed Tomography Coronary Artery Calcium Scoring With Tin Filtration
- Tesche, Christian
- De Cecco, Carlo N.
- Vliegenthart, Rozemarijn
- Albrecht, Moritz Moritz H.
- Varga-Szemes, Akos
- Duguay, Taylor M.
- Ebersberger, Ullrich
- Bayer, Richard R.
- Canstein, Christian
- Schmidt, Bernhard
- Allmendinger, Thomas
- Litwin, Sheldon E.
- Morris, Pamela B.
- Flohr, Thomas G.
- Hoffmann, Ellen
- Schoepf, U. Joseph
Publication date
February 2017
DOIAbstract
This study prospectively investigated the accuracy and radiation dose reduction of CT coronary artery calcium scoring (CACS) using a 100 kVp acquisition protocol with tin filtration (Sn100 kVp) compared with the standard 120 kVp acquisition protocol; 70 patients (59% men, 62.1 10.7 years) who underwent a clinically indicated CACS acquisition using the standard 120 kVp protocol on a third-generation dual-source CT system were enrolled. An additional Sn100 kVp CACS scan was performed. Agatston scores and categories, percentile based risk categorization, and radiation dose estimates were derived from 120 and Sn100 kVp studies and compared. Median Agatston scores from the Sn100 and 120 kVp acquisitions were 38.2 and 41.2, respectively (p</p
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