Flashcards in Tools of the Trade Deck (9)
What does reversible perfusion imply?
ischemia due to increased demand (work ischemia)
What does fixed perfusion imply?
ischemia due to infarctions, scars
What are micro-bubbles used for?
they're agitated saline that can show intra-septal defects or shunts- allow visualization of blood flow w/I the heart chambers
What do radionucleotide perfusion studies look for?
imbalances btw supply and demand via decreased perfusion; compare at rest to exercise
What are the radionucleotide perfusion imaging agents?
1. Thallium 204
2. Technetium-99m-Sestamibi (Cardiolite)
What does stress echo look for?
imbalance btw supply and demand bc of a wall motion abnormality; compare rest to exercise
Normally the left ventricle should _____ and ____ with exercise or dobutamine
beat faster; thicken more
Normally the left ventricle should beat faster and thicken more with exercise or _______.