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Fig. 2 | BMC Plant Biology

Fig. 2

From: In vivo quantitative imaging of photoassimilate transport dynamics and allocation in large plants using a commercial positron emission tomography (PET) scanner

Fig. 2

Optimization of PET parameters using 18F plant phantoms. a Effect of scatter on the accuracy of stem and root phantom radioactivity measurements. Bars show percent reduction in the error of phantom measurement after scatter correction under 3-D mode. b Effect of attenuation on the accuracy of stem and root phantom radioactivity measurements. Bars show percent reduction in the error of phantom measurement after attenuation correction under either 2-D (white) or 3-D (Grey) mode. c & d Error in the stem c and root d phantom radioactivity measurements based on the emission scans under 2-D and 3-D mode with different transmission scan times (10 s, 2 min, 4 min, and 20 min). For (C) and (D), bars show the average error of PET measurements of 18F phantom radioactivity, after attenuation correction and scatter correction, as a percent of the radioactivity of the phantoms measured using a calibrated scintillation counter. For all graphs error bars represent standard error

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