| 摘要 |
A method for acquiring contrast-enhanced images from a CT scanner (20), comprising: identifying a region of interest in an initial CT image of the body of a subject (22); defining an attenuation data segment corresponding to the region of interest (66, 68) by reprojecting the region of interest in the initial image; injecting a contrast medium into the body; scanning the body using the scanner, and receiving attenuation data within the segment; independently processing the attenuation data received within the segment to determine an optimal time for performing a diagnostic scan of the body; and performing the diagnostic scan at the optimal time, so as to acquire a contrast-enhanced CT image.
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