Halved contrast medium dose coronary dual-layer CT-angiography – phantom study of tube current and patient characteristics
C. H. Kristiansen,
P. M. Tetteroo,
M. M. Dobrolinska
et al.
Abstract:Virtual mono-energetic images (VMI) using dual-layer computed tomography (DLCT) enable substantial contrast medium (CM) reductions. However, the combined impact of patient size, tube voltage, and heart rate (HR) on VMI of coronary CT angiography (CCTA) remains unknown. This phantom study aimed to assess VMI levels achieving comparable contrast-to-noise ratio (CNR) in CCTA at 50% CM dose across varying tube voltages, patient sizes, and HR, compared to the reference protocol (100% CM dose, conventional at 120 kV… Show more
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