Figure 2 | Scientific Reports

Figure 2

From: Comparison between MR and CT imaging used to correct for skull-induced phase aberrations during transcranial focused ultrasound

Figure 2

Relationship between CT and MRsimCT values. MRsimCT values prior to HUbone scaling in (2) span a range from 0 to 1 and can be used as an estimate for bone fraction. For the CT parameters used in this study, pure bone was calculated to have a value of 2000 HU36. The black line depicts the nominal relationship between CT and MRsimCT values. Because only three ex vivo skulls were used in this study, using a linear regression to predict CT HU from MRsimCT values may overfit to the data. Therefore, the nominal linear relationship was used to predict CT HU instead.

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