MRI PHYSICS CHAPTER 4 PARAMETERS AND TRADE-OFFS Crossword

amplitude of signal vs. amplitude of noise
when acquiring volume slices for depicting small lesions in one plane only, voxels may be _____
voltage induced in receiver coil by precession of the NMV
for ideal volume resolution, each voxel must be symmetrical or ______
frequencies that exist randomly in space and time
best type of imaging for joints and small lesions
number of protons in a specific area that determines the amplitude of the signal received
TR x # of Phase Encodes x # of Averages
three-dimensional volume element depicting the volume of tissue within the patient
time needed to complete data acquisition
two-dimensional representation of a voxel
specific FOV that is useful for imaging areas which do not fill the typical square FOV
FOV divided by Matrix =
True of False- square pixels have better spatial resolution than rectangular pixels
pixel x pixel x slice thickness =
determines number of pixels in FOV
matrix with low frequency encodings and low phase encodings
ability to distinguish between two points as separate and distinct
matrix with high frequency encodings and high phase encodings
technique used to suppress background tissue and increase CNR
range of frequencies sampled during the readout gradient
difference in SNR between two adjacent areas
True or False- in respect to Signal to Noise Ratio, you should always use the largest coil possible to receive as much signal as possible
True or False- when positioning the coil it should always be placed parallel to the magnetic field to receive the best signal