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Fig. 1 | EJNMMI Physics

Fig. 1

From: Image-derived input functions from dynamic 15O–water PET scans using penalised reconstruction

Fig. 1

Frames 3 (A), 4 (B), 5 (C), 6 (D) and 7 (E) of an example subject whereby A would be excluded due to no presence of tracer in the carotids. BD are included in the averaged image due to presence of signal in the carotid and E would be excluded due to the carotids no longer being discernible in the image. As C has the carotids best defined, this image would be used to measure the x, y and z coordinates to draw an VOI around the carotids to define a carotid mask

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