Week 1: Intro to Sectionl Anatomy

Question 1

Anatomical Position

Answer 1

•Body is standing erect
•Face and toes point forward
•Arms at the side with palms facing forward

Question 2

Coronal Plane

Answer 2

•AKA frontal plane
•Vertical plane that passes through the body
•Divides body into anterior and posterior portions

Question 3

Sagittal Plane

Answer 3

•A vertical plane that passes through the body, dividing it into right and left portions

Question 4

Transverse Plane

Answer 4

•AKA Axial plane
•A horizontal plane that passes through the body, dividing it into
superior and inferior portions

Question 5

Axial slices of the aortic arch

Answer 5

Question 6

What are Hounsfield Units (AKA: CT Numbers)?

Answer 6

•The numerical value of each voxel is assigned a shade of gray for image display
•Represents the attenuating properties or density of each tissue. Water is used as the reference tissue and is given a value of zero. A CT number greater than zero will represent tissue that is denser than water
and will appear in progressively lighter shades of gray to white. Tissues with a negative CT number will appear in progressively darker shades of gray to black

Question 7

Define window level and window width

Answer 7

•Window width (WW) is a parameter that allows for the adjustment of the gray scale (number of shades of gray)
•Window level (WL) basically sets the density of the image or the center of the gray scale (changes level of brightness)

Question 8

Label the below images as TI, T2, or FLAIR

Answer 8

Question 9

For T1 images:
•Fat is ______
•CSF/Water is ______

Answer 9

•Fat is BRIGHT
•CSF/Water is DARK

Question 10

For T2 images:
•Fat is ______
•CSF/Water is ______

Answer 10

•Fat is DARK
•CSF/Water is BRIGHT

Question 11

For Flair images:
•Fat is ______
•CSF/Water is ______

Answer 11

•Fat is DARK
•CSF/Water is DARK