Electric potential, measured in volt (V).

The combination of single volume spectroscopy and chemical shift imaging. The chemical shift measurement is performed over a selectively-excited volume of interest. Areas with strong distorting signal are not stimulated and therefore do not append signal to the spectra.

See also Hybrid Imaging.

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

Respiratory triggering is a type of respiratory motion commonly used with fast imaging techniques. Images are acquired during the expiration phase. With this type of technique, the scan time is based on the selected TR per respiratory cycle and the patient's breathing patterns.

Nuclei can retain their magnetic orientation through a chemical reaction. Thus, if RF radiation is supplied to the spins at a frequency corresponding to the chemical shift of the nuclei in one chemical state so as to produce saturation or inversion, and chemical reactions transform the nuclei into another chemical state with a different chemical shift in a time short compared to the relaxation time, the NMR spectrum may show the effects of the saturation or inversion on the corresponding, unirradiated line in the spectrum. This technique can be used to study reaction kinetics of suitable molecules.