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CT Scanning Principles and Procedures Quiz

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CT Scanning Principles and Procedures Quiz

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Questions and Answers

What happens to the data obtained at the detector channel in CT?

They are discarded as they are not useful

They are immediately used to create the final image

They are passed on as electric signals corresponding to the actual x-ray attenuation (correct)

They are converted into sound waves for analysis

What is the basic principle of computed tomography (CT)?

Direct measurement of x-ray attenuation

Measuring the weakening of x-rays at numerous positions around the patient (correct)

Creating a 3D model of the patient's body using x-rays

Counting the number of x-rays passing through the patient

How are the electric signals from the detector channel processed in CT?

They are digitized and transmitted to the image processor (correct)

They are directly converted into visual images

They are amplified and then sent for analysis

They are used to adjust the x-ray tube settings

What is the 'pipeline principle' in CT reconstruction referring to?

<p>Consisting of preprocessing, convolution, and back projection</p> Signup and view all the answers

What is the role of the image processor in CT?

<p>Reconstructing the images from the digitized electric signals</p> Signup and view all the answers

Study Notes

Computed Tomography (CT) Principles

The data obtained at the detector channel in CT is converted into electric signals, which are then processed and reconstructed into an image.

Basic Principle of CT

The basic principle of CT is based on the rotational X-ray beam and the attenuation of X-ray intensity as it passes through the body.

Signal Processing in CT

The electric signals from the detector channel are processed through a series of steps, including amplification, filtration, and digitization, to produce raw data.

The 'Pipeline Principle' in CT Reconstruction

The 'pipeline principle' in CT reconstruction refers to the series of sequential steps involved in image reconstruction, including filtering, backprojection, and image display.

Role of the Image Processor in CT

The image processor in CT plays a crucial role in reconstructing the final image from the raw data, applying algorithms to correct for artifacts and improve image quality.

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Description

Test your knowledge of CT scanning principles and procedures with this quiz. Explore the basics of computed tomography and gain insights into the indirect measurement of x-ray attenuation.