Sectional Anatomy / Image Weight/Contrast

Question 1

What is the correct way to describe “anatomical position?”

Answer 1

subject is standing upright, with feet together flat on the floor, toes pointed forward, arms straight down by sides of the body with palms facing forward, fingers extended, and thumbs pointing away from the body

Question 2

When scanning sagittally you are scanning _____ to ____.

• anterior posterior/ posterior to anterior.
• side to side
• superior to inferior/ inferior to superior

Answer 2

side to side.

Question 3

When scanning coronally you are scanning _____ to _____.

• anterior posterior/ posterior anterior
• side to side
• superior to inferior/ inferior to superior

Answer 3

anterior or posterior.

Question 4

When scanning axially, you are scanning _____ to _____.

• anterior posterior
• side to side
• superior to inferior/ inferior to superior

Answer 4

superior to inferior or inferior to superior

Question 5

A sagittal plane is any longitudinal plane that divides the body into right and left parts

True or False

Answer 5

True

Question 6

What is a midsagittal plane?

Answer 6

also called median plane

it is a midline sagital plane dividing the body into EQUAL right and left parts

Question 7

What are the three anatomical planes of the body?

Answer 7

sagital coronal and axial

Question 8

Coronal plane is also known as the _______ plane.

Answer 8

Frontal

Question 9

An axial plane and a transverse plane is the same thing.

True or false

Answer 9

True

Question 10

What are the four abdominal quadrants?

Answer 10

RUQ, RLQ, LUQ, LLQ.

Question 11

How many abdominal regions are there?

Answer 11

9

Question 12

What are the names of the abdominal regions?

Answer 12

Right hypochondriac region
Epigastric Region
Left hypochondriac region
Right lumbar region
Umbilical region
Left lumbar region
Right iliac region
Hypogastric region
Left iliac region

Question 13

When talking about body habitus, how would you describe a “HYPERSTHENIC” person?

Answer 13

• short and wide
  *good body weight
  *stomach in thoracic area
  *small pelvic cavity
  *High alignment
  tract?
  *Heavy skeletal framework

Question 14

When talking about body habitus, how would you describe a “STHENIC” person?

Answer 14

• considerable weight
• heavy skeletal framework
• stout and well-built
• High alignment tract but lower than hyperstenic

Question 15

When talking about body habitus, how would you describe a “HYPOSTHENIC” person?

Answer 15

• Slender physique

* resembles sthenic but smaller

Question 16

When talking about body habitus, how would you describe a “ASTHENIC” person?

Answer 16

More slender physique than Hyposthenic
Light body weight
Lighter skeletal framework
Long thorax w/ narrow lung fields
Longer abdomen 
Low alimentary tract

Question 17

parameters that inherent to the body’s tissue (cannot be changed)

Answer 17

intrinsic contrast parameters

Question 18

Parameters that you can change

Answer 18

extrinsic contrast parameters

Question 19

What are examples of intrinsic contrast parameters?

Answer 19

T1 Recovery time 
T2 decay time
Proton Density
Flow
Apparent diffusion coefficient (ADC)

Question 20

What are some examples of extrinsic contrast parameters?

Answer 20

TR
TE
Flip Angle
T1
Turbo / Echo train
B Value

Question 21

What is net magnetic vector?

Answer 21

The net magnetization vector in MRI is the summation of all the magnetic moments of the individual hydrogen nuclei.

Question 22

Water has what level of vector?

Answer 22

1 Vector

Question 23

Muscle has what level of vector?

Answer 23

1

Question 24

Fat has how many vector?

Answer 24

1

Question 25

NMV (magnetic vector) has how many vectors?

Answer 25

3

Question 26

What is proton density?

Answer 26

it is the number of mobile hydrogen protons per unit volume of that tissue?

Question 27

The ____ the number of protons of the tissue were imaging the ___ signal available.

Higher lower
More or less?

Answer 27

The higher the number of protons the more signal available from tissue

Directly related.