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EJNMMI Physics
Fig. 3 | EJNMMI Physics

Fig. 3

From: A novel semiautomated method for background activity and biological tumour volume definition to improve standardisation of 18F-FET PET imaging in glioblastoma

Fig. 3

Summary plots of intra-reader and inter-reader coefficient of variation (CoV) for the overall group. The plots show the comparison of the intra-reader and inter-reader CoV of the CTRL SUVmean (top row) and BTV (bottom row) between the MI (blue) and the gCS (red) methods for the overall group of readers. *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001, ns = no significant difference. BTV = biological tumour volume; CoV = coefficient of variation; CTRL = contralateral background reference region; gCS = guided crescent-shape; MI = mirror-image; SUV = standard uptake value

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