Automatic exposure control at single-and dual-heartbeat CTCA on a 320-MDCT volume scanner: effect of heart rate, exposure phase window setting, and …
Y Funama, D Utsunomiya, K Taguchi, S Oda… - Physica Medica, 2014 - Elsevier
Purpose To investigate whether electrocardiogram (ECG)-gated single-and dual-heartbeat
computed tomography coronary angiography (CTCA) with automatic exposure control (AEC)
yields images with uniform image noise at reduced radiation doses. Materials and methods
Using an anthropomorphic chest CT phantom we performed prospectively ECG-gated single-
and dual-heartbeat CTCA on a second-generation 320-multidetector CT volume scanner.
The exposure phase window was set at 75%, 70–80%, 40–80%, and 0–100% and the heart …
computed tomography coronary angiography (CTCA) with automatic exposure control (AEC)
yields images with uniform image noise at reduced radiation doses. Materials and methods
Using an anthropomorphic chest CT phantom we performed prospectively ECG-gated single-
and dual-heartbeat CTCA on a second-generation 320-multidetector CT volume scanner.
The exposure phase window was set at 75%, 70–80%, 40–80%, and 0–100% and the heart …
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