The Mx and My data (digital MR signal) sampled and stored during data acquisition as a function of time and phase from an MRI sequence are called raw data. The horizontal axis is the frequency code, the vertical axis the phase code (of the protons).
Every point in the raw data matrix contains part of the information for the complete image. A point in the raw data matrix does not correspond to a point in the image matrix. The outer rows of the raw data matrix provide information regarding the borders and contours of the image, detailed structures, and also determine the resolution. This is also called k-space data.

Time after completion of examination for the computer to present a digital image.

From Toshiba America Medical Systems Inc.;
VISART™ series is a 1.5 Tesla superconducting MRI system that has been designed to meet the expanding role of MRI in today's clinical environment. The system utilizes innovative technologies such as digital RF, high speed actively shielded gradients and optimized RF coils, which support a wide range of MRI developments. The Visart, an early type of Toshiba Medical Systems Inc., can be retrofitted or upgraded to the Excelart configuration.