Cardiac Imaging Flashcards
What is coronary angiography useful in
Assessing anatomy
Stenosis
Can use pressure wire to see pressure and O2 in vessel
Disadvantages
Bleeding
Stroke / MI
Radiation
Contrast
Advantages
Can do PCI
Functional test with pressure wire
Sensitive and specific
Gold standard
What is CT angiography useful in
Anatomy
If low or moderate risk
Advantages
Sensitive and specific
Less radation
Non invasive
Disadvantages
Radiation and contrast
Only anatomical
What does angiography require
Slow and steady HR
When is angiography CI
Tachy
Anxiety
Asthma
Obesity
What does myocardial perfusion scan
LV function
Functional test looking at wall motion / areas of ischaemia / viable myocaridum
Coronary artery disease
Show whether CABG or stent useful
Advantages
Non-invasive
No contrast
Not expensive
Disadvantages
Radiation
Not suitable if MI / AS / arrhythmia
Drugs used can stress heart
What is stress ECHO useful lin
1st line functional test of LV fucntion
Show wall abnormalities
No radiation
Cardiac MRI
Anatomical and functional Infiltrative disorders Ischaemia Structure Masses Expensive
TOE
Valve
LV dysfunction
Similar to endoscopy
Risk of rupture and sedation
