Observations on the choice of reconstruction matrix in magnetic resonance imaging

This paper points out a number of ways in which the choice of imaging matrix can affect the performance of a machine in Magnetic resonance imaging. It observes that, contrary to most other techniques, there are advantages in some instances both in sensitivity and detectability through the use of 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, susceptibility mapping, and fluid flow are used to illustrate the argument.