Chapter 22 diagnostic imaging

Question 1

an electromagnetic wave with a high energy level and short wavelength that can penetrate solid objects

Answer 1

X-ray

Question 2

something that does not permit the passage of X-rays

Answer 2

radiopaque

Question 3

visualization of anatomic structures without using radioactive waves

Answer 3

magnetic resonance imaging (MRI)

Question 4

detects high frequency sound waves through skin and produces an image based on the echos

Answer 4

ultrasound

Question 5

radiographic technique that shows a detailed 360 degree cross section of tissue

Answer 5

computed tomography scan (CT)

Question 6

injection of isotopes combined w/ other substances. postirons are emitted and processed by a computer and displayed on a screen

Answer 6

postiron emission tomography (PET scan)

Question 7

x-ray visualization of blood vessels after injecting contrast media

Answer 7

angiography

Question 8

an x-ray study of the spinal cord

Answer 8

myelography

Question 9

visualization of an organ in cross section

Answer 9

tomography

Question 10

what are the 4 radiology positions?

Answer 10

1. anteroposterior (front to back)
2. posteroanterior (back to front)
3. oblique (at an angle)
4. lateral (side)

Question 11

an image produced on film by a sweeping beam of radiation

Answer 11

scan

Question 12

areas that interfere with the diagnostic value of the radiograph

Answer 12

film artifacts

Question 13

radiologic test used to study the functions of organs in motion

Answer 13

fluoroscopy