Cardiac nuclear medicine Flashcards
A study where images are taken with CT, MRI, or NM during the whole cardiac cycle (EKG)
Cardiac EKG gating
NM cardiac evaluation looks at what?
Myocardial perfusion
a potassium analog that is taken up by the myocardium via Na-K adenosine triphosphate transport system (a radiotracer for NM eval)
Thallium 201
Two other radiotracers used in NM eval
Technicium 99m sestambi- retained in the myocardial mitochondria Technicium 9m tetrofosmin
Four types od cardiac stress tests that can be done
stress-rest rest-stress Dual Isotope Two day
__________is a beta 1 agonist that increases cardiac contractility and ouput. This can be used for a stress test if a pt cannot excercise
Dobutamine
Another choice that causes “stress” for a nuclear stress test. This dilates the blood vessels to increase blood flow
Adenosine (he also has dipyramide on there)
_______ gives you full thickness of the myocradium. 2-D images are obtained
Planar
________ is where multiple 2D images are obtained and reconstructed into a 3D image.
SPECT
During a nuclear cardiac stress test your patient has normal perfusion during stress. It is most likely that the perfusion during stress is ________.
also normal
Pt has a nuclear stress test and perfusion during stress is abnormal but normal at rest. This indicates…..
Limited blood flow is likely
When there is abnormal stress perfusion and abnormal rest perfusion this indicates……
Ischemia at all times
When there is no perfusion during stress or rest this indicates…….
infarction scar
The gold standard imaging in cardiology is…….
Invasice cardioangiography
using 18 Fluorodeoxyglucose or rubidium -82 to bind to metabolically active tissue to evaluate functon myocardial tissue and perfusion and viability of the myocardium
PET scan
NAME THAT SCAN!!!!!
MUGA
Name that scan
PET
Name that scan
nuclear cardiac stress test
This scan is a ______ and the arrows are showing ______
nuclear cardiac stress test, areas of iscemia
