HU units value of bone -: (A) 0, (B) 40, (C) -100, (D) 1000
Answer is D. Ans. is 'd' i.e., +1000 SubstanceHU unitsWaterDense cortical boneSoft tissueFatLung tissueAir0+ 1000 (+400 to + 1000)+ 40 to + 80- 60 to -100- 400 to -600- 1000