Computed Tomography Overview

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Questions and Answers

What is one significant advantage of computed tomography (CT) over traditional radiography?

It creates detailed cross-sectional images. (correct)
It requires the use of contrast agents.
It is capable of capturing moving images.
It can be performed more quickly than radiography.

What do the Greek words that form the term tomography translate to?

To write about layers.
To capture images.
To record slices.
To cut and record. (correct)

What is a limitation of traditional radiography mentioned in the content?

It exposes patients to less radiation than CT.
It requires patients to be sedated.
It provides real-time imaging capabilities.
It cannot differentiate between structures with slightly varying densities. (correct)

Computed tomography is primarily characterized as which type of procedure?

<p>Noninvasive and detail-oriented. (D)</p> Signup and view all the answers

In the context of imaging, what does the expression 'superimposition of all structures' refer to?

<p>The difficulty in distinguishing specific details due to overlapping images. (C)</p> Signup and view all the answers

Flashcards

Computed Tomography (CT)

An imaging technique that uses specialized x-ray equipment to create detailed cross-sectional images of the body, like slices in a loaf of bread.

Superimposition in Radiography

The main limitation of traditional x-rays is that everything gets superimposed on a single image, making it hard to distinguish details. Think of a jumbled mess of overlapping shapes.

Non-invasive procedure

A CT scan is a non-invasive procedure. This means it does not require any cuts or incisions to be performed.

Diagnostic Applications of CT Scans

CT scans provide detailed cross-sectional images that can help diagnose a variety of medical conditions.

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Therapeutic Applications of CT Scans

CT scans also play a role in planning and guiding certain medical treatments.

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Study Notes

Computed Tomography (CT)

CT uses specialized X-ray equipment to create detailed body images.
Also known as computerized tomography or computerized axial tomography.
"Tomography" combines Greek words meaning "to cut/slice" and "to record."
CT is a non-invasive procedure.
Produces cross-sectional images of the body—like slices of bread.
Used for various diagnostic and treatment purposes.

Limitations of Radiography Compared to CT

Radiography shows overlapping structures, making detail difficult to see.
Especially challenging to distinguish subtle density differences (like tumors and surrounding tissue).
Radiography is qualitative, not quantitative—hard to differentiate homogeneous from heterogeneous objects with similar appearances.

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Description

Explore the fundamentals of Computed Tomography (CT), including how it works and its advantages over traditional radiography. This quiz covers essential terms, processes, and the limitations of radiography compared to CT imaging techniques. Test your knowledge about this critical diagnostic tool!