Estimation of radiation dose of coronary multislice computed tomography (MSCT) angiography in daily practice in an international, multicenter and vendor-independent trial.
Prospective analysis of cardiac CT angiographies enrolled over 1 month Collection of 1 axial data set and the "patient dose protocol" (including kV, mAs, CTDI, DLP, etc.) on a CD Dose estimation in dose/cm with the use of a method proposed by the European Working Group for Guidelines on Quality Criteria in CT. Assessment of diagnostic, qualitative image quality on a per-vessel basis by the participating study sites and in randomly selected cases by the primary study investigators (approximately 5-10% of patients to "spot check" interobserver variability of image quality assessments) Assessment of image quality with the use of quantitative parameters including image noise, signal-to-noise and contrast-to-noise ratios
Study Type
OBSERVATIONAL
Enrollment
1,965
Deutsches Herzzentrum Muenchen
Munich, Germany
Radiation dose estimates of coronary MSCT angiography in daily practice
Time frame: 1 month
Comparison of dose estimates between 16-slice, 64-slice, DSCT and other CT systems
Time frame: 1 month
Frequency of dose-saving algorithm's use (e.g.: ECG-dose pulsing / Care Dose 4D / 100kv
Time frame: 1 month
Assessment of potentials for additional dose savings (e.g. entire scan length; the distance between scan start to begin of coronary arteries and distance end of coronary arteries to end of scan)
Time frame: 1 month
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