Question

Which of these statements are true and false regarding computed tomography CT number ctn

Answer 1

Explanation:

False. CT number represents the average linear attenuation coefficient in the voxel.  b. False. CTn = 1000 μt μw/μw, where μt and μw are the attention coefficients of tissue and water, respectively.  c. False. CTn is dependent on:  Heterogeneity of the tissue  Variation in the attenuation coefficient of each tissue relative to water  kV  Filtration of the X-ray beam  d. True. CTn of brain white matter = 20–30; CTn of grey matter = 35–45.  e. True. Air and water can be used for calibration.Read more on Sarthaks.com - https://www.sarthaks.com/496580/regarding-computed-tomography-number-represents-linear-attenuation-coefficient-tissue?show=496582#a496582