5 Questions
What is the basic principle of Time of Flight (TOF) MRA?
It is based on flow-related enhancement with high signal for inflow and low signal for outflow
What is the purpose of pre-saturating bands in TOF MRA?
To reduce unwanted signal from blood flowing into the imaging field from a certain direction
What is the distinguishing feature of Phase Contrast MRA (PC MRA) compared to TOF MRA?
It can quantify velocity and direction of blood flow
What is the effect of bipolar gradients in PC MRA?
They are used to encode phase information with equal magnitude but opposite sign
What is the purpose of short TR in TOF MRA?
To prevent longitudinal recovery in the imaging plane and make stationary tissue appear dark
Test your knowledge of MRI Angio with this quiz. Explore the basic principles and commonly utilized techniques such as TOF and Phase Contrast MRA, as well as Contrast-Enhanced MRA. Assess your understanding of the principles behind differentiating stationary spins from those in motion due to blood flow.
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