Computed Tomography Scan questions & answers graded A+

Computed Tomography Scan
Computed Tomography - correct answer ✔✔Process of creating a cross-sectional tomographic plane
(slice) of any part of the body



Computed Tomograpy - correct answer ✔✔Well-accepted imaging modality for neurologic and body
procedures



Brain

(Window width) - correct answer ✔✔250 HU



Brain

(Window level) - correct answer ✔✔30 HU



Spinal cord

(Window Width) - correct answer ✔✔350 HU



Spinal Cord

(Window Level) - correct answer ✔✔50 HU



Skull, Bone

(Window width) - correct answer ✔✔2000 HU



Bone

(Window level) - correct answer ✔✔500 HU



Lungs

(Window width) - correct answer ✔✔2000 HU

, Lungs

(Window level) - correct answer ✔✔-700 HU



Mediadtinum

(Window width) - correct answer ✔✔450 HU



Mediastinum

(Window level) - correct answer ✔✔40 HU



Abdomen

(Window width) - correct answer ✔✔150 HU



Abdomen

(Window level) - correct answer ✔✔50 HU



1967 - Godfrey Hounsfield - correct answer ✔✔First successful clinical demo. Of CT.



1971 - Atkinson Morley's Hospital - correct answer ✔✔First full-scale unit for head scanning



1973 - Mayo Clinic & Massachusetts Gen. Hosp. - correct answer ✔✔First CT units in the United States



1974 - Dr. Robert Ledley - correct answer ✔✔Developed the first scanner capable of visualizing any
section of the body



Data acquisition system

(DAS) - correct answer ✔✔Radiation detection system that measures amount of radiation passing
through patient



Gantry - correct answer ✔✔Framework that holds x-ray tube and radiation detection system