Flashcards in CT MRI Deck (12)
Cortical bone appears
Dense structures appear
white or light shade of gray
Less dense appears
radiodensity of voxel represent sum of densities of tendon and bone
Which slices are less affected by volume averaging and therefore have better contrast
less information and results in loss of image quality
How is axial image representing a transverse slice displayed?
as if patient were in supine position and viewer looking in caudocephalad direction
What is the level of the window?
narrow window setting chosen, with central value representing average attenuation of brain tissue
What slices require greater radiation and increase the duration of examination and increase number of slices=increasing total radiation dose
water- valuable for detecting inflammation