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Basics of CT Imaging Quiz

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Questions and Answers

What is the primary function of detector elements in CT scanning?

Determine the maximum mAs and volume length

Set scan parameters and mode

Control the radiation exposure during scanning

Capture energy that has not been attenuated by the patient (correct)

What does MHU primarily determine in CT scanning?

Maximum mAs (correct)

Generator size

Scan parameters

Volume length

What does the control console in CT scanning primarily do?

Determine the maximum mAs and volume length

Control the radiation exposure during scanning

Set scan parameters and mode, house reconstructor, review and archive images, and perform post-processing (correct)

Capture energy that has not been attenuated by the patient

Which scanning method involves continuous acquisition in CT?

Volumetric CT – Helical or spiral CT Signup and view all the answers

What does CAT stand for in the context of CT scanning?

<ul> <li>Computerized Axial Tomography</li> </ul> Signup and view all the answers

What does the term 'MHU' primarily determine in CT scanning?

Maximum mAs Signup and view all the answers

What is the primary function of detector elements in CT scanning?

Capture energy attenuated by the patient Signup and view all the answers

Which term refers to Computerized Axial Tomography in CT scanning?

CT Signup and view all the answers

What does the control console primarily do in CT scanning?

Set scan parameters and mode Signup and view all the answers

Which scanning method involves Digital projection – AP, PA, Lat or Oblique projection in CT?

Digital projection Signup and view all the answers

Study Notes

Basics of CT

X-rays were founded in 1895 by Wilhelm Conrad Roentgen
CT (Computed Tomography) was founded in 1970 by Sir Godfrey Hounsfield, an engineer with EMI, LTD., with first applications in neuroradiology

CT Scanner

A CT scanner uses X-ray modality to image the body in cross-section
It is used to determine:
- Extent of trauma
- Location and type of tumors
- Status of blood vessels
- Pre-surgical planning

CT System Components

Basic components of a CT scanner include:
- Gantry
- X-ray tube
- Detector
- Control console
The Gantry includes:
- CT X-ray tube
- High voltage generator
- Detector array
- Data acquisition system
- Slip ring

CT X-ray Tube

The CT X-ray tube has an anode heat capacity of 3.5 MHU up to 6

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Description

Test your knowledge on the basics of CT (Computed Tomography) imaging, including the imaging chain, system components, acquisition methods, image quality, and applications. Learn about the history of X-Rays and the beginnings of CT imaging.