FIGURE 4. Relationship between diameters of tubes filled with constant concentration of ²¹⁰Tl and maximal voxel activity within tubes after cardiac SPECT. A 38% decrease in maximal voxel activity was associated with the decreased tube size corresponding to the difference in myocardial thickness between segments without and with SPECT defects (from 12.3 to 8.8 mm).

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