Magnetic Resonance Imaging (MRI) Board Practice Exam

NMV is short for:

Net Magnetization Vector Nuclear Magnetic Vector Normal Magnetization Value Neuromagnetic Vector

Correct Answer:

Net Magnetization Vector

Explanation:

Net Magnetization Vector is the standard term for the combined magnetic moment of all nuclei in a region, represented as a vector M with components along the axes. In MRI, the signal you detect comes from the transverse component of this vector, Mxy, which precesses around the main magnetic field B0. At rest, the NMV points along B0 (the longitudinal direction). When a radiofrequency pulse is applied, the NMV is tipped away from the z-axis, creating transverse magnetization that produces the MR signal. The other terms aren’t used in MRI: Nuclear Magnetic Vector isn’t a conventional term, Normal Magnetization Value isn’t a standard concept, and Neuromagnetic Vector refers to brain magnetic fields measured by MEG, not the MR signal.

Access more questions from this quiz

Continue to Magnetic Resonance Imaging (MRI) Board Practice Exam for more practice questions and the full quiz experience.

Access More Questions