Test Bank Questions And 100% Correct Detailed
Answers |Updated & Graded A+
Coherent gradient echo - ANSWER-a GRE sequence
capable of measuring the FID generated just after each
excitation or the echo formed prior to the next pulse
How is a coherent gradient echo obtained? - ANSWER-A
variable flip angle excitation pulse followed by rephasing
gradient to produce a gradient echo. TR selected is
shorter than the T1 and T2 times of the tissue. The result
is leftover transverse magnetization when the next
excitation pulse is delivered. A rewinder gradient is then
used to rephase all residual magnetization so that the
, resultant echo contains information about the FID and the
stimulated echo.
what is the balanced gradient echo used for? - ANSWER-
Developed initially for heart and great vessels, but also
used for spinal, internal auditory meatus, joint and
abdominal imaging
advantages of balanced gradient echo - ANSWER-o Good
contrast
o Fast scan times
o Flow correction
o Good SNR and anatomical detail in 3D