Final answer:
Increasing the matrix size on an MRI knee improves the spatial resolution while decreasing the SNR.
Step-by-step explanation:
Increasing the matrix size on an MRI knee from 320 x 288 to 512 x 384 will improve the spatial resolution while decreasing the SNR (Signal-to-Noise Ratio).
In simple terms, spatial resolution refers to the ability of the MRI to distinguish fine details or structures within the image. Increasing the matrix size means more pixels are used to represent the image, leading to higher spatial resolution.
On the other hand, the SNR refers to the quality of the image, or the ratio of the signal (desired MRI information) to the noise (unwanted background signals). Increasing the matrix size decreases the SNR because more pixels are used to represent the same amount of information, resulting in a decrease in the strength of the signal compared to the noise.
Increasing your matrix size on an MRI from 320 x 288 to 512 x 384 will increase spatial resolution while decreasing signal-to-noise ratio (SNR).
A higher matrix size leads to finer image granularity because there are more pixels within the same field of view (FOV). As a result, the level of detail that can be resolved in the image is greater, hence an improved spatial resolution.
, since each pixel represents a smaller area, there is less signal being captured per pixel, leading to a reduced SNR. Signal-to-noise ratio is a measure of how much useful signal there is compared to background noise, with higher values representing clearer images with less noise.