_________ is known as the specific frequency at which magnetic resonance in a
nucleus can be excited and detected, and varies directly with magnetic field strength -
Larmor Frequency
A technique used to suppress fluids, utilizing a long echo time coupled with a long
Inversion time is known as __________. - FLAIR (Fluid Attenuated Inversion Recovery)
____________ occurs when tissue outside the Field of View is undersampled, causing
a misregistration of anatomical location, in the phase direction, but on the opposite side
of the anatomical location, also known as wrap-around artifact - Aliasing artifact
_____________ is a term describing the containment of the static magnetic field
through the use of secondary coils attached around the MRI scanner - Active shielding
________________ is due to the difference in resonant frequencies between fat and
water, causing a phase shift in voxels containing fat and water - Chemical shift artifact
Describing image display, the ________ function scrolls through the entire sequence's
images, giving the appearance of CSF flowing or cardiac movement, from the cycle of
the images acquired - Cine
____________ is a term used to describe the adjustment of the current within the shim
coils on a per patient or per sequence basis - Active shimming
MR technique utilized to image flowing blood and specific vasculature structures: -
Magnetic resonance angiography (MRA)
MR technique which quantitatively assesses the mechanical properties of tissues,
based on the propagation of shear waves: - Magnetic resonance elastography (MRE)
What is the term for the echo generated by switching a pair of dephasing and rephasing
gradients, without the use of a 180° refocusing pulse? - Gradient Echo (GE)
_________ is defined as the number of times that a periodic function or vibration
repeats itself in a specified time. It is usually measured in hertz (Hz) - Frequency
_________ is defined as a loss of resolution due to excessively large voxels, typically
caused by slices that are too thick - Partial Volume Averaging
___________ is defined as the Z component of the net magnetization vector in the
direction of the static magnetic field - Longitudinal magnetization
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