Chest Radiology

Question 1

units for radiation

Answer 1

Svert

Gray

Question 2

color of air

Answer 2

black

Question 3

color of bone

Answer 3

white

Question 4

why is PA standing better than AP supine

Answer 4

reduced heart shadow because the beams are parallel and the FFD is greater

Question 5

aortic knob marks the

Answer 5

upper boarder of lower lobe

Question 6

hidden areas

Answer 6

apices
heart
hila
below diaphragm

Question 7

reading system acronym

Answer 7

A- apices, abdomen, airway, angles
B- bones
C- heart size and boarder
D- diaphram and pleura
E- everything else

Question 8

alveolar disease

Answer 8

air spaces filled with non air

fluffy looking

Question 9

air bronchogram

Answer 9

seen in alveolar disease

air visible in bronchioles

Question 10

interstitial disease

Answer 10

thickening of interlobar septa and peribronchial area
decreased lung volume
honeycomb pattern

Question 11

Kerley lines

Answer 11

dilated lymphatics
A- upper zone, do not extend into pleural space
B- lower zone, thin lines extending into pleural space
C- central, randomly oriented

Question 12

silhouette sign

Answer 12

visible boarder between 2 things with different densities

boarder disappears if densities become the same

Question 13

right diaphragm

Answer 13

RLL basal segments

Question 14

right heart boarder

Answer 14

RML medial

Question 15

ascending aorta

Answer 15

RUL anterior

Question 16

aortic knob

Answer 16

LUL posterior

Question 17

left heart boarder

Answer 17

lingula inferior

Question 18

descending aorta

Answer 18

LLL superior and medial basal

Question 19

left diaphragm

Answer 19

LLL basal

Question 20

valve at anterior 1/3

Answer 20

tricuspid

Question 21

valve at middle 1/3

Answer 21

aortic

Question 22

valve at posterior 1/3

Answer 22

mitral

Question 23

CXR good for

Answer 23

pneumonia

pneumothorax

Question 24

CXR not good for

Answer 24

pulmonary embolus