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Table 1: 

Difference in CBF between right and left hemispheres calculated from the clinical CT images only, for ROIs located in located in grey or white matter in the 2 hemispheresa
Injection MethodDifference in CBF between Left and Right Hemispheres (mL/100 g/min)
White MatterGrey Matter
6 mL/s 50%
    Mean2.041.98
    SD6.036.77
    Overall ρ0.92
    Overall r0.92
3 mL/s 100%
    Mean0.750.26
    SD7.869.49
    Overall ρ0.84
    Overall r0.84
3 mL/s 67%
    Mean0.730.61
    SD9.246.74
    Overall ρ0.90
    Overall r0.90
  • 


    a Mean and SD values are given in milliliters/100 g/min. The overall CCCs and the Pearson correlation coefficients between the left and right hemispheres (without grey/white matter discrimination) are also included and were found to be identical, implying no underlying bias due to position of the catheter or otherwise.