Computed Tomography (CT) Questions with Accurate Answers

Computed Tomography (CT) Questions with
Accurate Answers
(2) CT collimators correct answer Beam collimation (Pre)
Detector collimation (Post)


(2) CT detectors correct answer Gas Ionization Detectors
Scintillation Detectors


(2) Types of CT Image Acquisition correct answer Sequential
Volumetric


(3) CT Axis correct answer X Axis
Y Axis
Z Axis


(3) CT Beam Geometries correct answer *The size, shape, and motion of the beam
and its path
Pencil - Parallel beam
Fan - 10 degree divergent beam
Cone - Wide divergent fan beam *Modern CT*


(3) CT Planes correct answer Coronal
Sagittal
Axial (Horizontal or Transverse)

, Afterglow correct answer Occurs as a result of SLOW response time
The tendency of a luminescent compound to continue to give off light after x-
radiation has stopped


Allan MacLeod Cormack correct answer South African Physicist
He developed the necessary mathematics in order for the FIRST Axial CT scanner
to function in 1972.


Analog-to-digital converter (ADC) correct answer Converts analog signal to digital
numbers


Axial Plane correct answer Superior/Inferior
Divides the body into UPPER and LOWER sections


Components of CT operator console correct answer Liquid Crystal Display (LCD)
Monitor
CPU
Keyboard
Mouse


Computed Tomography (CT) correct answer Medical Imaging technique in which
computer-enhanced cross-sectional X-ray images are obtained for a diagnoses.


Computerized transverse axial scanning correct answer The name of the first CT
scanner, 1972.