Resistive magnet - Study guides, Class notes & Summaries

Different tissues that have signals that appear similar on an MR image are described as: A) hypointense B) hyperintense C) isointense D) isodense - 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 A) precession B) resonance C) frequency D) angular momentum - Answer precession magnetic resonance imaging is derived from the process known as: A) ma...

MRI ASRT Test Questions and Correct Answers on All 12 Modules The most common type of magnet used in today's MR systems is the _______________. A. resistive magnet B. permanent magnet C. superconducting magnet D. open MR scanner - Correct Answer C. superconducting magnet The positively charged part of an atom is the _____________. A. electron B. neutron C. proton D. nucleus - Correct Answer C. proton When a hydrogen nucleus is positively charged and spins, it generates a sma...

MRSO Safety Questions with Complete Solutions 100% Verified Slew rate - Correct Answers Speed at which gradient coil turns on and off Time-varying Gradient - Correct Answers Induced current in a patient Magnetic Flux Lines - Correct Answers Travel from North to South pole permanent magnet - Correct Answers Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet - Correct Answers Can be turned on and off Costly due to cooling A...

RI magnets described as giant versions of horseshoe magnets used as toys are: - Answer Permanent Which type of MRI magnet is made up of naturally ferromagnetic material? - Answer Permanent MRI magnets that require a steady current of electricity passed through coils wrapped around an iron or air core are: - Answer Resistive

Armrit review test questions and answers The exact middle of the bore of the magnet is termed: - Ans ️️ -Isocenter Without proper safety limits on the MR system exposure to the time-varying magnetic fields created by the rapid switching of the gradient could create a potential environment for: - Ans ️️ -Including electrical current in the patient's tissues Faraday's Law deals with induction of a current by a magnet. true or false? - Ans ️️ -true The orientation of the main ma...

In MRI, substances respond to a specific radio frequency which is known as: - Resonance frequency The effects of main magnetic field inhomogeneities on the FID signal are corrected for in a Spin-echo sequence by applying a second radio-frequency pulse. The flip angle of this radio-frequency pulse is: - 180 degrees The components of the Gyro-magnetic ratio are: - Magnetic moment to angular momentum Which type of electromagnetic coils produce smaller magnetic field which allow spatial locali...

Slew rate ~~> Speed at which gradient coil turns on and off Time-varying Gradient ~~> Induced current in a patient Magnetic Flux Lines ~~> Travel from North to South pole permanent magnet ~~> Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet ~~> Can be turned on and off Costly due to cooling 2 | P a g e | © copyright 2024/2025 | Grade A+ Master01 | September, 2024/2025 | Latest update Approximately 0....

Without proper safety limits on the MR system exposure to the time-varying magnetic fields created by the rapid switching of the gradient could create a potential environment for: - ANSWER-Including electrical current in the patient's tissues Faraday's Law deals with induction of a current by a magnet. true or false? - ANSWER-true The orientation of the main magnetic field of a low field permanent magnet is vertical. True or false? - ANSWER-True ; permanent lowfield magnets utilize a mag...

MRSO Exam 3 with Complete Solutions Slew rate Correct answer Speed at which gradient coil turns on and off Time-varying Gradient Correct answer Induced current in a patient Magnetic Flux Lines Correct answer Travel from North to South pole permanent magnet Correct answer Can not be turned off Very inexpensive; extremely heavy Approximately 0.4T Vertical vector Resistive magnet Correct answer Can be turned on and off Costly due to cooling Approximately 0.6T Vertical or horizontal vecto

The exact middle of the bore of the magnet is termed: - ANSWER-Isocenter Without proper safety limits on the MR system exposure to the time-varying magnetic fields created by the rapid switching of the gradient could create a potential environment for: - ANSWER-Including electrical current in the patient's tissues Faraday's Law deals with induction of a current by a magnet. true or false? - ANSWER-true The orientation of the main magnetic field of a low field permanent magnet is verti...