ABSTRACT

Magnetic re sonance i maging (MRI) i s a to mographic i maging technique that produces images of internal physical and chemical p roperties o f t he b ody b y me asuring t he em itted n uclear magnetic resonance (NMR) signals. In a typical MRI exam, the patient lies inside the machine and a radiofrequency (RF) signal is em itted i nto t he pat ient b ody, w hich re sponds b y em itting another RF signal.1 e received signal is recorded and processed to yield the MRI image.