Editorial
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Dec 21, 2011; 17(47): 5133-5149
Published online Dec 21, 2011. doi: 10.3748/wjg.v17.i47.5133
Figure 6
Figure 6 Multiple spins precessing with the Larmor frequency around the direction of B0 (left). After a 90° radio frequency (RF) pulse, the spin population of the energy levels become equal and the spins precess coherently (middle). The magnetization vector M0, rotates into the transverse (x-y) plane (right).