Diagnostic Imaging Terminology for Medical Assistants

Question 1

Which type of electromagnetic radiation used in diagnostic imaging is classified as ionizing?

Accepted Answer

X-rays

Answer

Ultrasound

Answer

Magnetic Resonance Imaging (MRI)

Answer

Computed Tomography (CT)

Question 2

In the context of CT scans, what term refers to a three-dimensional representation of the scanned area?

Accepted Answer

Volume rendering

Answer

Axial

Answer

Coronal

Answer

Sagittal

Question 3

Which magnetic field strength is typically employed in clinical MRI scanners?

Accepted Answer

1.5 Tesla

Answer

0.5 Tesla

Answer

3.0 Tesla

Answer

7.0 Tesla

Question 4

Which of the following conditions is not considered a contraindication for MRI?

Accepted Answer

Pregnancy

Answer

Presence of a pacemaker

Answer

Metal implants

Answer

Claustrophobia

Question 5

What is the acronym for the MRI technique used to visualize blood vessels?

Accepted Answer

MRA

Answer

MRI

Answer

CTA

Answer

DSA

Question 6

Which imaging technique utilizes radioactive isotopes to produce images of metabolic processes in the body?

Accepted Answer

PET scan

Answer

SPECT scan

Answer

X-ray

Answer

Ultrasound

Question 7

In PET scans, which radioactive isotope is commonly used to label molecules for imaging?

Accepted Answer

Fluorine-18

Answer

Technetium-99m

Answer

Iodine-131

Answer

Gallium-67

Question 8

Which imaging study specifically captures X-ray images of the chest?

Accepted Answer

Chest X-ray

Answer

Cervical spine radiograph

Answer

Abdominal ultrasound

Answer

MRI of the brain

Question 9

In medical imaging, what does the abbreviation 'CT' primarily represent?

Accepted Answer

Computed tomography

Answer

Conventional tomography

Answer

Contrast tomography

Answer

Cranial tomography

Question 10

Within the healthcare field, which profession is primarily responsible for interpreting and reporting on diagnostic images?

Accepted Answer

Radiologist

Answer

Sonographer

Answer

Nuclear medicine physician

Answer

Imaging technician

Question 11

In diagnostic imaging, what is the primary function of using a grid?

Accepted Answer

Reduce scatter radiation

Answer

Enhance image contrast

Answer

Increase image resolution

Answer

Minimize patient exposure to radiation

Question 12

In X-ray imaging, what term describes a two-dimensional image?

Accepted Answer

Radiograph

Answer

Fluoroscopy

Answer

Tomogram

Answer

Angiogram

Question 13

Which of the following is not a contrast agent used in diagnostic imaging?

Accepted Answer

Saline

Answer

Iodine

Answer

Barium

Answer

Gadolinium

Question 14

In imaging, what is the term for a series of rapid X-ray images used to observe movement?

Accepted Answer

Fluoroscopy

Answer

Radiography

Answer

Tomography

Answer

Angiography

Question 15

Compared to traditional X-rays, what is the key advantage of CT scans?

Accepted Answer

Differentiation of soft tissues

Answer

Enhanced image resolution

Answer

Shorter imaging time

Answer

Reduced radiation exposure

Question 16

Which imaging technique uses a magnetic field and radio waves to create images?

Accepted Answer

MRI

Answer

X-ray

Answer

CT scan

Answer

Ultrasound

Question 17

Which of the following is a measure of the sharpness of a radiographic image?

Accepted Answer

Resolution

Answer

Contrast

Answer

Brightness

Answer

Penetration

Question 18

What is the term for the process of converting X-rays into an image?

Accepted Answer

Radiography

Answer

Fluoroscopy

Answer

Tomography

Answer

Scintigraphy

Question 19

Which imaging modality is used to assess blood flow in arteries and veins?

Accepted Answer

Ultrasound

Answer

X-ray

Answer

CT scan

Answer

MRI

Question 20

What is the term for a radiopaque contrast agent used to enhance the visibility of blood vessels during imaging?

Accepted Answer

Iodine

Answer

Barium

Answer

Gadolinium

Answer

Indocyanine green

Question 21

Which term describes a series of X-rays captured from varying angles?

Accepted Answer

Tomography

Answer

Mammography

Answer

Ultrasound

Answer

Fluoroscopy

Question 22

What device generates X-rays?

Accepted Answer

X-ray tube

Answer

Collimator

Answer

Radiolucent

Answer

Fluoroscope

Question 23

Which term refers to the quantity of radiation absorbed by a material?

Accepted Answer

Attenuation

Answer

Ionization

Answer

Scattering

Answer

Penetration

Question 24

What process is responsible for converting X-rays into visible images?

Accepted Answer

Radiography

Answer

Computed tomography

Answer

Fluoroscopy

Answer

Magnetic resonance imaging

Question 25

What contrast agent is used in magnetic resonance imaging (MRI) scans?

Accepted Answer

Gadolinium

Answer

Barium sulfate

Answer

Iodine

Answer

Air

Question 26

Which term describes the technique that utilizes ultrasound waves to create images of body structures?

Accepted Answer

Sonography

Answer

Fluoroscopy

Answer

Mammography

Answer

Radiography

Question 27

What is the title of the healthcare professional who performs and interprets diagnostic imaging studies?

Accepted Answer

Radiologist

Answer

Medical assistant

Answer

Nurse

Answer

Radiographer