Computed Tomography Chapter 1
Tomography - correct answer ✔✔Technique that was developed in the early 1920's to image a specific
layer or section of the body
Transverse Axial Tomography - correct answer ✔✔Developed in 1937, allowing cross-sectional images to
be acquired
What is tomography - correct answer ✔✔Refers to imaging by sections or sectioning, through the use of
any kind of penetrating wave.
Tomography is from the Greek word Tomos meaning - correct answer ✔✔Slice or section and graphe
meaning drawing
CT image reconstruction from projections - correct answer ✔✔Produces sharp, clear cross-sectional
images of the human body by reconstructing a large number of projections from different locations
Dr Godfrey Hounsfield - correct answer ✔✔Applied reconstruction techniques to produce the world's
first clinical useful CT scanner for imaging the brain in 1967
3 steps of the formation of CT images - correct answer ✔✔Data acquisition, image reconstruction, image
display, manipulation, storage, recording, and communication
Data acquisition - correct answer ✔✔Refers to the collection of X-ray transmission measurements from
the patient
Special electronic detectors - correct answer ✔✔Measure the attenuation of the X-ray beam as it passes
through the patient
Tomography - correct answer ✔✔Technique that was developed in the early 1920's to image a specific
layer or section of the body
Transverse Axial Tomography - correct answer ✔✔Developed in 1937, allowing cross-sectional images to
be acquired
What is tomography - correct answer ✔✔Refers to imaging by sections or sectioning, through the use of
any kind of penetrating wave.
Tomography is from the Greek word Tomos meaning - correct answer ✔✔Slice or section and graphe
meaning drawing
CT image reconstruction from projections - correct answer ✔✔Produces sharp, clear cross-sectional
images of the human body by reconstructing a large number of projections from different locations
Dr Godfrey Hounsfield - correct answer ✔✔Applied reconstruction techniques to produce the world's
first clinical useful CT scanner for imaging the brain in 1967
3 steps of the formation of CT images - correct answer ✔✔Data acquisition, image reconstruction, image
display, manipulation, storage, recording, and communication
Data acquisition - correct answer ✔✔Refers to the collection of X-ray transmission measurements from
the patient
Special electronic detectors - correct answer ✔✔Measure the attenuation of the X-ray beam as it passes
through the patient
