Practice Test 1 Armrit Questions And Answers

In the USA the MRI systems main magnet field and the vector that represents it is symbolized {Ans: B0}the T1 process is also known as {Ans: spin lattice}which type of electromagnetic coils correct inhomogenities in the main magnetic field? {Ans: shim coils}the purpose of magnetic resonance angiography is to image the {Ans: blood flow}immediately after an initial 90-degree radio frequency pulse is turned off the hydrogen protons will begin to {Ans: Dephase}In a large main magnetic field such as those employed in MRI, the motion of a hydrogen proton has been described as wobbling like a spinning top. This motion is called: {Ans: Prescession}Once the net magnetization vector (nmv) has moved away from equilibrium, the following will occur: {Ans: The transverse component will increase}of the following statements which describes part of the basic MRI imaging process? {Ans: radio frequency signals interact with hydrogen protons}which type of electromagnetic coils are designed to stimulate and detect an MRI signal {Ans: radio frequency coils}an MRI imaging for a chemical substance to be affected by the main magnetic field and the radio wave it must contain an {Ans: odd number of total protons and