High-pitch low-voltage CT coronary artery calcium scoring with tin filtration: accuracy and radiation dose reduction

Objectives To investigate diagnostic accuracy and radiation dose of high-pitch CT coronary artery calcium scoring (CACS) with tin filtration (Sn100kVp) versus standard 120kVp high-pitch acquisition. Methods 78 patients (58% male, 61.5±9.1 years) were prospectively enrolled. Subjects underwent clinic...

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Bibliographic Details
Published in:European radiology 2018-07, Vol.28 (7), p.3097-3104
Main Authors: Apfaltrer, Georg, Albrecht, Moritz H., Schoepf, U. Joseph, Duguay, Taylor M., De Cecco, Carlo N., Nance, John W., De Santis, Domenico, Apfaltrer, Paul, Eid, Marwen H., Eason, Chelsea D., Thompson, Zachary M., Bauer, Maximilian J., Varga-Szemes, Akos, Jacobs, Brian E., Sorantin, Erich, Tesche, Christian
Format: Article
Language:English
Subjects:
Aged
Arteriosclerosis
Calcification (ectopic)
Calcinosis - diagnostic imaging
Calcium
Calcium channels (voltage-gated)
Cardiac
Categories
Classification
Computed tomography
Coronary Angiography - methods
Coronary artery
Coronary Artery Disease - diagnostic imaging
Coronary vessels
Diagnostic Radiology
Diagnostic systems
Electric potential
Female
Filtration
Filtration - methods
Health risk assessment
Heart
Heart diseases
Humans
Imaging
Internal Medicine
Interventional Radiology
Male
Medicine
Medicine & Public Health
Middle Aged
Neuroradiology
Patients
Prognosis
Prospective Studies
Radiation
Radiation Dosage
Radiographic Image Interpretation, Computer-Assisted - methods
Radiology
Reproducibility of Results
Risk
Risk Assessment - methods
Tin
Tomography
Tomography, X-Ray Computed - methods
Ultrasound
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Summary:Objectives To investigate diagnostic accuracy and radiation dose of high-pitch CT coronary artery calcium scoring (CACS) with tin filtration (Sn100kVp) versus standard 120kVp high-pitch acquisition. Methods 78 patients (58% male, 61.5±9.1 years) were prospectively enrolled. Subjects underwent clinical 120kVp high-pitch CACS using third-generation dual-source CT followed by additional high-pitch Sn100kVp acquisition. Agatston scores, calcium volume scores, Agatston score categories, percentile-based risk categorization and radiation metrics were compared. Results 61/78 patients showed coronary calcifications. Median Agatston scores were 34.9 [0.7–197.1] and 41.7 [0.7–207.2] and calcium volume scores were 34.1 [0.7–218.0] for Sn100kVp and 35.7 [1.1–221.0] for 120kVp acquisitions, respectively (both p
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-017-5249-2