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. 2021 Aug 1;62(8):1118–1125. doi: 10.2967/jnumed.120.256255

FIGURE 1.

FIGURE 1.

Example (patient 8) images with contour-guided registration showing propagation of kidney contours defined on CT of scan 1 SPECT/CT and corresponding time–activity data with biexponential fits. SPECT images have been normalized to the maximum value in each image.