Arterial contour detectability in head CT angiography
2015
Purpose
Arterial contour extraction is essential for visualization and analysis of vasculature in CT angiography (CTA). A means for evaluating the detectability of artery contours CTA images is required. We developed and tested a new method for this purpose based on phase information from two-dimensional Fourier transforms of CTA images. The relationship between arterial contour detectability and a patient’s ocular lens dose was evaluated in CTA images obtained with various tube voltages and currents.
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