CPC - Cardiac Imaging Flashcards
1
Q
What is Transthoracic ECHO used for?
A
- Ventricle contraction/dilation
- Appearance of valves
- Measurement of ejection fraction
- Short axis view, aortic valve
2
Q
How does ECHO doppler work?
A
- Blue shows blood moving away and red shows blood moving towards the probe whilst turbulent blood flow causes a mixture of both (valve function)
3
Q
How does nuclear imaging work?
A
- Radionucleotide traces and use gamma rays and a gamma detector
- Looks for big abnormalities between rest and exercise.
- Tracer taken up by myocardium and image is taken to see how much of the myocardium has the tracer infused into. Less blood supply during stress/exercise and so less of the tracer to be taken up.
4
Q
What are the indications for CT?
A
- Looking at coronary artery anatomy
- Looking at great vessel anatomy
5
Q
What is invasive angiography used for?
A
- Ischaemia
- Primary PCI
- Valve assessment
- Assessment of ventricular pressures
6
Q
What is MRI used for?
A
- Detailed assessment of left and right systolic function
- Indications include assessment of structure and function, perfusion/stress, assessment of great vessels and tissue characterisation (infiltrative cardiomyopathies and previous infarction)
