Cardiac Imaging

Question 1

in a chest X ray…how big does cardiac silhouette need to be to classify as cardiomyopathy?

Answer 1

over 50% of the thoracic line

Question 2

what can heart failure cause that can be seen in an X ray?

Answer 2

pulmonary edema and pleural effusions

Question 3

what can we determine with chest X ray?

Answer 3

can help limit differential…able to see chamber enlargements and pulmonary findings from heart disease

Question 4

define echocardigraphy

Answer 4

ultrasound of the heart using reflected waves to create an image

Question 5

what are the 3 views in echocradiography?

Answer 5

from PMI
left of parasternal axis
right of parasternal axis

Question 6

TEE

Answer 6

trans esophageal echo

used for cardiac surgery and for left sided viwing of atrium and ventricle

Question 7

what is stress echo?

Answer 7

give a B1 agonists and see if everything is still moving succinctly in the heart

Question 8

nuclear imaging use

Answer 8

add isotopes or dye and they have affinity for cardiac myocytes so they go there and show you whats up

great for CAD and stress tests

Question 9

Right heart cath route and other name

Answer 9

venous route…Swan Ganz

Question 10

left heart cath route

Answer 10

arterial route to aorta and can check the CA there

Question 11

what pressures can we get with right heart cath?

Answer 11

Right atrium, ventricle

pulmonary artery and pulmonary artery wedge pressure

Question 12

what is the pulmonary artery wedge pressure and why do we like it?

Answer 12

this is the capillary pressure and is pretty equivalent to the left atrium pressure which is about the same as the left ventricle pressure at diastole

Question 13

what is another imaging technique for coronary arteries?

Answer 13

CT angiography

Question 14

what disease must you use chest CT with contrast for?

Answer 14

any issue having to do with the thoracic aorta