Alternative Imaging

Question 1

Echogenicity

Answer 1

describes the grey scale that is seen

Question 2

Hyperechoic

Answer 2

structure is lighter than the surrounding tissue/organ

Question 3

Hypoechoic

Answer 3

image is darker than the surrounding tissue

Question 4

Anechoic

Answer 4

image is black (i.e. fluid)

Question 5

Isoechoic

Answer 5

image is the same echogenicity as compared to another organ

Question 6

Near Field

Answer 6

refers to the portion of the image closest to the probe

Question 7

Far Field

Answer 7

portion of the image farthest from the probe

Question 8

Sagittal Imaging Planes

Answer 8

probe is oriented from cranial to caudal

Question 9

Transverse Imaging Plane

Answer 9

probe is oriented from left to right

Question 10

Acoustic Impedance

Answer 10

ability of tissue to resist or impede the transmission of sound depending on the density and elasticity of tissue

Question 11

Resolution

Answer 11

ability to separately identify small structures on the ultrasound image or detail of the image

Question 12

Fluoroscopy

Answer 12

provide dynamic real-time imaging of anatomical structures; used mainly to examine digestive system

Question 13

Nuclear Scintigraphy

Answer 13

radioisotopes or small amount of radioactive material or radionuclide is given IV, transcolonically, or aerosol

Question 14

What is the most common radionuclide used?

Answer 14

Technetium-99m