Michael Francois Nel

What cause of signal loss does a spin echo sequence compensate for?

Which of the following changes in isolation will produce higher signal values in gradient echo imaging?

A gradient echo pulse sequence with a short TE, short TR and a large flip angle will have predominantly which weighting?

A short TI, short TE inversion recovery sequence will produce which image?

Which of the following spin echo sequences is seldom performed?

A single-echo conventional spin echo sequence takes 4 minutes to complete. Assuming resolution and TR remain constant, how long will a fast spin echo sequence with an echo train length (ETL) of 8 take to perform?

Which of the following is true regarding echo planar imaging (EPI)?

Which of the following does NOT change the b value in diffusion weighted imaging?

Which of the following sequences is predominantly used in diffusion weighted imaging (DWI)?

Which sequence parameter is required in time-of-flight magnetic resonance angiography (TOF MRA)?

Phase change for a spin moving at a constant velocity, across a constant magnetic field gradient, for a given period of time is proportional to...

In phase contrast MR angiography (PC MRA), blood flowing at 50cm/s through a slice exhibits 180 degrees of phase change after being exposed to the bipolar phase gradients. What is the velocity encoding (VENC) value that has been used in this sequence?

Which combination of sequence parameters is usually best for contrast enhanced MR angiography (CE MRA)?

Which of the following is an advantage of multi-voxel sequences over single-voxel sequences in MR spectroscopy?

Which of the following is required in point resolved spectroscopy (PRESS)?