magnetic resonance spectroscopy

Definition of magnetic resonance spectroscopic imaging
National Cancer Institute

magnetic resonance spectroscopic imaging

(mag-NEH-tik REH-zuh-nunts SPEK-troh-SKAH-pik IH-muh-jing)
A noninvasive imaging method that provides information about cellular activity (metabolic information). It is used along with magnetic resonance imaging (MRI) which provides information about the shape and size of the tumor (spatial information). Also called 1H-nuclear magnetic resonance spectroscopic imaging, MRSI, and proton magnetic resonance spectroscopic imaging.

Source: NCI Dictionary of Cancer Terms