imaging Flashcards

1
Q

what is cardiothoracic ratio

A

ratio of max diameter of heart/max diameter of thorax

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2
Q

normal CTR?

A

=50%

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3
Q

when would heart size be exaggerated rather than cardiomegaly

A

poor inspiration
AP projection
rotation

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4
Q

advantages of CMRI

A

good soft tissue resolution

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5
Q

disadvantages of CMRI

A

long imaging times
MRI contraindication
claustrophobia
not useful for coronary arteries

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