practice test 1 armrit| 30 Questions | accurate Answers!!

practice test 1 armrit| 30 Questiondifferent tissues that have signals that appear similar on a mr image are described as: - ANSWER isointense 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: - ANSWER Prescession Magnetic resonance imaging is derived from the process known as: - ANSWER Nuclear magnetic resonance Once the net magnetization vector (nmv) has moved away from equilibrium, the following will occur: - ANSWER The transverse component will increase In MRI, substances respond to a specific radio frequency which is known as: - ANSWER Resonance Frequency The introduction of gadolinum based contrast enhancement agents by intra-venous injection can involve passing through as abnormal blood brain barrier. The tissue compartments involved are the: - ANSWER intravascular to interstitial T2 is the measurement of time for the transverse compnent of the nmv to decrease what percentage of its maximum value after application of a 90* radio-frequency pluse? - ANSWER 37% In the USA the MRI systems main magnet field and the vector that represents it is symbolized - ANSWER B0 the resonance frequency of any substance in a magnetic field can be calculated by employing s | accurate Answers!!