Medical Imaging

Question 1

Radiography

Answer 1

x-rays - bones appear white, hollow structures appear black, and intermediate density such as skin and muscle appear grey

Question 2

Contrast X-ray

Answer 2

uses a medium that is injected, taken orally or rectally to make hollow structures visible
Used to image blood vessels, urinary system, and gastrointestinal tract

Question 3

MRI

Answer 3

Magnetic Resonance Imaging
Shows fine details of soft tissue
Used to detect tumors, artery clogs, measures blood flow

Question 4

CT

Answer 4

Computed Tomography
X-ray beam traces arc around a section of body
Screening for cancers

Question 5

Ultrasound

Answer 5

high frequency sound waves produced by a handheld wand reflected off body tissue
image produced called a sonogram

Question 6

CCTA

Answer 6

Coronary (cardiac) computed tomography angiography scan

Contract injected into the vein and beta blocker to decrease heart rate - used to find blockages in blood vessels

Question 7

PET

Answer 7

Positron Emission Tomography
Used to study physiology of the body structure such as metabolism in the brain or heart by injecting positrons into the body

Question 8

Endoscopy

Answer 8

visual exam of inside of body organs or cavities

Question 9

Radionuclide Screening

Answer 9

Radioactive substance introduced through IV carried to tissue
Intense color = high tissue activity
less intense color = low tissue activity

Question 10

SPECT

Answer 10

Single photon emission computed tomography

Studying brain, heart, lungs, and liver