Utility of Quantitative <sup>99m</sup>Tc-MAA SPECT/CT for <sup>90</sup>yttrium-Labelled Microsphere Treatment Planning: Calculating Vascularized Hepatic Volume and Dosimetric Approach

<table>Delineation of VOIs used for quantitative analysis of  SPECT and SPECT/CT analysis (a, b): VOI defined on SPECT hot spot alone. Fused SPECT/CT image with the VOI matching with the hot spot ((a), SPECT/CT scale); CT scale showing that the VOI is not accurate and larger than the sphere (b). (c): VOI defined with SPECT/CT and using the CT scale: the isocontour was fitted by superposition  on the boundaries of the internal wall of the sphere.</table>

International Journal of Molecular Imaging

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Figure 1

Figure 1: Utility of Quantitative <sup>99m</sup>Tc-MAA SPECT/CT for <sup>90</sup>yttrium-Labelled Microsphere Treatment Planning: Calculating Vascularized Hepatic Volume and Dosimetric Approach 

Figure 1 | Utility of Quantitative 99mTc-MAA SPECT/CT for 90yttrium-Labelled Microsphere Treatment Planning: Calculating Vascularized Hepatic Volume and Dosimetric Approach 