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Amri 310 week 8 knowledge check questions and answers already solved 2024
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Amri 310 week 8 knowledge check questions and answers already solved 2024
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Amri 310 week 8 knowledge checkSteep gradients are used to produce which of the following results ? - correct
answer ✔Small FOV
Thin slices
Fine matrix
K space represents the finished diagnostic MRI image? - correct answer
✔False
bits are represented as either 0 or 1 - correct answer ✔True
In general, the data rows of k-space are filled by the Ny (phase) steps in a
_direction, and the data columns of k-space are filled by the Nx (frequency)
steps in a __ direction - correct answer ✔Vertical
Horizontal
Where in k-space are the magnetic moments in phase and at maximum signal
amplitude? - correct answer ✔
A printer is an _____ device - correct answer ✔output
30 cm= _______________________mm - correct answer ✔300
As the FOV is decreased, why does spatial resolution increase?
1. pixel size is reduced
2. matrix size is reduced
, 3. SNR is increased - correct answer ✔1 and 2
Voxel volume will be stated in units of mm² or cm².
Select one:
True
False - correct answer ✔False
The number of phase encoding and frequency encoding steps used to create
an image is called - correct answer ✔matrix
A square FOV with a side of 12.8 cm (128 mm), 128 Ny and Nx steps, would
produce a __ pixel with a side of __ mm - correct answer ✔
An isotope voxel refers to a __ shaped voxel - correct answer ✔
Each slice of an image consists of a series of volume element called __ -
correct answer ✔
If the FOV is square and the pixels are square, and the side of each pixel is 2
mm, and having used a (non realistic) matrix of 100x100, each side of the
FOV must have been _____ cm long. - correct answer ✔20
The basic unit in computer information is the - correct answer ✔Bit
K-space refers to - correct answer ✔Storage of raw data
A keyboard is an __ device - correct answer ✔Input
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