Magnetization vector - Study guides, Class notes & Summaries

The tissue characteristic that depends heavily on the relative content of fat molecules and free water is: - ANSWER-Hydrogen concentration. T1 is the measurement of time for the longitudinal component of the net magnetization vector to recover what percentage of its original value after the application of a 90 degree radio-frequency pulse? - ANSWER-63% Immediately after an initial 90 degree radio-frequency pulse is turned off, the hydrogen protons will begin to: - ANSWER-Dephase A 90 de...

Magnetism can be defined as the ability of certain substances to attract: - Answer Iron, Cobalt, Nickel The components of the Gyro-magnetic ratio are: - Answer Magnetic moment to angular momentum Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - Answer Gradient coils Which type of MRI magnet requires cryogen to cool magnetic coils to 4 degrees Kelvin? - Answer Superconductive T2 is the measurement of time fo...

ARMRIT Practice test questions and answers Magnetism can be defined as the ability of certain substances to attract: - Ans ️️ -Iron, Cobalt, Nickel The components of the Gyro-magnetic ratio are: - Ans ️️ -Magnetic moment to angular momentum Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - Ans ️️ -Gradient coils Which type of MRI magnet requires cryogen to cool magnetic coils to 4 degrees Kelvin? - Ans ️️...

ARMRIT Practice test| 30 Questions| accurate 100% Magnetism can be defined as the ability of certain substances to attract: - ANSWER Iron, Cobalt, Nickel The components of the Gyro-magnetic ratio are: - ANSWER Magnetic moment to angular momentum Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - ANSWER Gradient coils Which type of MRI magnet requires cryogen to cool magnetic coils to 4 degrees Kelvin? - ANSWER Superc...

Hydrogen -Answer Nuclei in fat and fat Differences in chemical shift at.... -Answer 1T-3.5 T parts per million majority of nuclei align.... -Answer Parallel Net magnetization vector (NVM) -Answer Excess number of H protons aligned with magnetic field Larmar equation: W? -Answer Precesional frequency Larmar equation: Y? -Answer Gyromagnetic ratio Larmar equation: B0 -Answer Magnetic strength Gyromagnetic ratio of H at 1T? -Answer 42.58 MHz/T (center fr...

T1 is the measurement of time for the longitudinal component of the net magnetization vector to recover what percentage of its original value after the application of a 90 degree radio-frequency pulse? - ANSWER-63% Immediately after an initial 90 degree radio-frequency pulse is turned off, the hydrogen protons will begin to: - ANSWER-Dephase A 90 degree radio-frequency pulse will alter the net magnetization vector. Another effect is: - ANSWER-The hydrogen protons will dephase The basic ...

MRI ARMRIT physics Exam Questions and Answers T2 is the measurement of time for the transverse component of the net magnetization vector to decrease what percentage of its maximum value after the application of a 90 degree radio frequency pulse - Ans ️️ -37% The NMV is rotated to the physical negative Z axis by applying a...? - Ans ️️ -C)180 pulse Increasing which parameter is considered the "best" technique for improving image quality? - Ans ️️ -C)NEX Studies have concluded...

Latest ARMRIT Exam Prep Questions |100% Correct Answers| Magnetism can be defined as the ability of certain substances to attract: *Ans* Iron, Cobalt, Nickel The components of the Gyro-magnetic ratio are: *Ans* Magnetic moment to angular momentum Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? *Ans* Gradient coils Which type of MRI magnet requires cryogen to cool magnetic coils to 4 degrees Kelvin? *Ans* Supercond...

The T1 process is also known as: - Answer-Spin Lattice Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - Answer-Gradient coils The component Mxy is most associated with: - Answer-Transverse to Bo; T2 relaxation; Transverse magnetization The resonance frequency of any substance in a magnetic field can be calculated by employing the: - Answer-Larmor equation Once the patient's area of interest is placed in the main magnet...

different 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 ...