Armrit stuvia Study guides, Class notes & Summaries

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) magnetic resonance angiography B) magnetic relaxation imaging C) nuclear magnetic resonance D) nuclear resonance imaging - ANSWER-nuclear magnetic resonance Once the nmv...

Different tissues that have signals that appear similar on an MR image are described as: A) hypointense B) hyperintense C) isointense D) isodense - ANSWERisointense 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 - ANSWERprecession magnetic resonance imaging is derived from the process known as: A) magn...

MRI PHYSICS- Armrit Test Questions and Answers (Graded A) MRI PHYSICS- Armrit Test Questions and Answers (Graded A) MRI PHYSICS- Armrit Test Questions and Answers (Graded A) Signal - ANSWER-Current induced iby receiver coil. Also comes from the procession of protons in the patient. Chemical pre saturation - ANSWER-Selectively apply 90 degree pulse at frequency of tissue to be saturated. Moves fat or HBO 90 degrees. 2nd puse wider bandwidth moves both fat and water 90 degrees. One w...

ARMRIT EXAM QUESTIONS & ANSWERS 100% ACCURATEARMRIT EXAM QUESTIONS & ANSWERS 100% ACCURATEARMRIT EXAM QUESTIONS & ANSWERS 100% ACCURATEARMRIT EXAM QUESTIONS & ANSWERS 100% ACCURATEDifferent 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. t...

ARMRIT Practice Tests with Complete Questions & Answers (Graded A) ARMRIT Practice Tests with Complete Questions & Answers (Graded A) ARMRIT Practice Tests with Complete Questions & Answers (Graded A) ARMRIT Practice Tests with Complete Questions & Answers (Graded A) ARMRIT Practice Tests with Complete Questions & Answers (Graded A) The 2 types of enhancement media described by Lauffer, the mechanism of T1 agents is - ANSWER-to decrease T1 relaxation time, thus emitting high signal An anal...

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...

ARMRIT Review Test Questions & Answers 100% VerifiedARMRIT Review Test Questions & Answers 100% VerifiedARMRIT Review Test Questions & Answers 100% Verified 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 ...

ARMRIT STUDY GUIDE PACKET WITH COMPLETE SOLUTIONSARMRIT STUDY GUIDE PACKET WITH COMPLETE SOLUTIONSARMRIT STUDY GUIDE PACKET WITH COMPLETE SOLUTIONSARMRIT STUDY GUIDE PACKET WITH COMPLETE SOLUTIONS Atoms - answer-fundamental submicroscopic unit of all mass. Size of the atom and its weight have interested scientists for a long period. Subsequently, experiments were devised to determine the size and weight of the various atoms. The lightest of all atoms is hydrogen. Proton - answer-a subatomic ...

The 2 types of enhancement media described by Lauffer, the mechanism of T1 agents is - Answer to decrease T1 relaxation time, thus emitting high signal An analogy for the decoding of the MR signal through Fourier Transform - Answer Basilar membrane processing sound Logically each line of phase encoding data is combined to allow the FT to determine the position along the y-axis. The number of phase encoding steps determines - Answer the number of pixels along the y-axis In a gradient ech...

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...