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Fig. 1 | EJNMMI Research

Fig. 1

From: Carotid plaque inflammatory activity assessed by 2-[18F]FDG-PET imaging decrease after a neurological thromboembolic event

Fig. 1

Schematic example of the calculated average max standardized uptake value (aSUVmax) and grayscale median (GSM). ECA = external carotid artery. ICA = internal carotid artery. CCA = common carotid artery. The 3D ultrasound acquisition of the plaque was sliced in 2-mm segments from the flow divider, and the slice containing the maximum plaque thickness was identified. The slice with the maximum plaque thickness and the two slices on each side were used in analyses. For the PET/CT, the flow divider was used as landmark for alignment of SUVmax readings to the ultrasound readings. An average SUVmax was calculated for this 1 cm long plaque volume. GSM was automatically calculated by the software for the volume of the 10-mm-long plaque segment

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