week 10

What is the purpose of the equipment shown in the image?

• To perform magnetic resonance imaging (MRI)

• To conduct computed tomography (CT) scans

• To execute ultrasound imaging

• To carry out X-ray radiography

What does computed tomography (CT) provide?

• A) A single static image of the subject

• B) Radiographs that use thousands of fast projections taken with a radiograph tube that spins around the subject

• C) A three-dimensional video of the subject

• D) Ultrasound images of the subject

How are the projections from a computed tomography (CT) scan organized?

• A) As a continuous stream of data

• B) As a single three-dimensional image

• C) As a series of two-dimensional (2D) images, similar to serial sections in a histologic study

• D) As a random collection of images

The organization of CT scan images is often compared to which of the following?

• A) Pages in a book

• B) Slices of bread in a loaf

• C) Frames in a movie reel

• D) Tiles on a floor

What does the X-ray tube do in computed tomography (CT)?

• It remains stationary around the patient.

• It rotates around the patient, emitting X-rays from multiple angles.

• It moves linearly alongside the patient.

• It captures the X-rays after they pass through the patient.

What is the role of detectors in computed tomography (CT)?

• They generate X-rays.

• They rotate with the X-ray tube.

• They measure the intensity of X-rays transmitted through the body.

• They reconstruct the data into images.

How are the data from a CT scan converted into images?

• Through manual interpretation by a radiologist.

• Using X-ray film development.

• By computer algorithms that reconstruct the data into detailed cross-sectional images.

• Through a direct conversion process using X-ray cassettes.

What is the advantage of CT in terms of resolution?

• It can distinguish between different types of hard tissue

• It has low resolution

• It can distinguish between different types of soft tissue

• It cannot distinguish between different types of tissue

Which organ systems may be visualized with the injection of a radiopaque contrast medium during a CT scan?

• Musculoskeletal and nervous systems

• Digestive and endocrine systems

• Hepatic, renal, and cardiopulmonary systems

• Integumentary and lymphatic systems

Which of the following is NOT a listed use for CT scans according to the material provided?

• Nasal disease

• Thoracic masses; resectable

• Portal vein anomalies

• Acute appendicitis