Fig. 2
From: Anatomy-based correction of kidney PVE on \(^{177}\text{Lu}\) SPECT images
Illustration of the procedure used to evaluate the seven PVC algorithms. A Fully quantitative SPECT-CT acquisitions of the 3 modified IEC phantoms for 6 TBR values. B Manual segmentation of structures using 3D-Slicer on the CT images corresponding to a TBR of 12 (\(CT_{TBR\_12}\)). The segmented structures are then exported in RTSTRUCT format (\(RTSTRUCT_{TBR\_12}\)). C Within MATLAB, \(RTSTRUCT_{TBR\_12}\) is converted into a labeled mask at SPECT resolution (\(Mask^{SPECT}_{TBR\_12}\)). This mask is rigidly propagated onto the masks corresponding to the other TBRs (\(Mask^{SPECT}_{TBR\_i}\)) using the transformations derived from the alignment of \(CT_{TBR\_12}\) with \(CT_{TBR\_i}\) D Fully quantitative SPECT recordings (\(SPECT_{TBR\_i}\)), structure masks (\(Mask^{SPECT}_{TBR\_i}\)), and camera PSF serve as inputs to the PETPVC software