Observations of the choice of reconstruction matrix in magnetic resonance imaging

A number of ways are mentioned in which the choice of imaging matrix can affect the performance of a machine in magnetic resonance imaging. It is observed that, contrary to most other techniques, there are sensitivity and detectability advantages, in some instances, in lower-resolution images which may not be obtainable in higher-resolution ones-although it is equally true that there are other circumstances where the reverse is true. Considerations of effects arising from field inhomogeneity, patient motion, and fluid flow are used to illustrate the argument