Medical imaging lecture 1_x ray & CT

Question 1

bilateral

Answer 1

on both sides

Question 2

unilateral

Answer 2

on one side

Question 3

contralateral

Answer 3

on opposite sides of the body

Question 4

ipsilateral

Answer 4

one the same side of the body (the left arm and lag are ipsilateral)

Question 5

Eversion

Answer 5

foot rolls out

Question 6

Inversion

Answer 6

foot rolls in

Question 7

Which projection (AP of PA) causes greater magnification of the heart. why?

Answer 7

AP. This is because the eart is more anterior. The AP position allows for greater shadowing

Question 8

Trendelenberg position

Answer 8

lying down with head lower than feet

Question 9

Fowlers position

Answer 9

lying down with head higher than feet

Question 10

What determins transmition of xrays?

Answer 10

Density of material. Less dense material allows for greater transmition. Material with greater transmition appears darker. (Air allows near total transmition followed by fat, soft tissue/H20, bone, metal.)

Question 11

What direction do xrays need to travle to detect air bubbles?

Answer 11

The xrays must travle horizontal to the air bubble