Cross-sectional Quiz 4

How does the axial plane divide the body?

superior and inferior sections

How does the coronal plane divide the body?

anterior and posterior sections

What is the coronal plane mainly used for?

chest and sinus imaging

How does the sagittal plane divide the body?

left and right sections

What is the sagittal plane used to evaluate?

midline structures

What does CT use to reconstruct sagittal in coronal views?

Multi-Planar Reconstruction

What is used to assess kidney function before injecting contrast?

GFR and creatinine

What is Hounsfield Unit scale

quantify tissue density (differentiating air, fat, water, and bone)

What unit is water?

0

What unit is air?

-1000 (dark)

What unit is bone?

+1000 (white)

What are ferromagnetic materials?

iron, steel, nickel

What contrast agent is used in MRI

Gadolinium

What does a the T1-weighted image show?

fat is bright and fluid is dark

What does a the T2-weighted image show?

fluid is bright, eating in diagnosis of inflammation

What are the different MRI zones?

zone I - public area

Zone II - screaming area (reception, changing rooms, patient prep)

Zone III - MRI controll room (locked in access controlled)

Zone IV - magnet room, MRI scanner

What does PET imaging work?

Evaluate metabolic activity using FDG (radiopharmaceuticals) to detect cancer

At what age are annual mammogram screenings recommended

40

What does the medial lateral oblique mammogram view visualize

upper outer breast quadrant and axillary tail,

common insight for breast cancer development

What is the most significant risk factor for breast cancer?

increasing age