Practice Test 1 ARMRIT with Complete Solutions!!

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 the - ANSWER-Larmor equation in a pulse sequence transmitting a initial 90-degree radio frequency pulse will cause the nmv to: - ANSWER-shift in both size and direction which type of electromagnetic coils are designed to stimulate and detect an MRI signal - ANSWER-radio frequency coils