Pixel Value: Mm2 New [new]

Stored in the file metadata under "Pixel Spacing" (Tag (0028,0030) ).

Single Pixel Area (mm2)=(25.4DPI)2Single Pixel Area open paren m m squared close paren equals open paren the fraction with numerator 25.4 and denominator DPI end-fraction close paren squared At 96 DPI, the surface area of one pixel is: pixel value mm2 new

Are you to measure real-world sizes?

: Tracking the exact growth or shrinkage of tumors in mm2mm squared from MRI or CT scans. Stored in the file metadata under "Pixel Spacing"