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Nuclei that have the strongest magnetic moments are those with - correct answer only hydrogen The Larmor frequency of nuclei depends on: - correct answer # of protons and neutrons in the nucleus gyromagnetic ratio main magnetic field strength molecule in which nuclei are located The spin-lattice relaxation time in MRI is also called the - correct answer longitudinal relaxation time ...

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5 pages

Written in 2024/2025

Grade A+

RealGrades

Which names contributed to development of NMR/MRI? - Correct Answer-Felix Bloch, Edward Purcell, Peter Mansfield, Paul Lauterbur, Damadian Which individual discovered that tumors and normal tissue can be distinguished by NMR because of their relaxation times? - Correct Answer-Damadian Which individual discovered that a charged particle such as a

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6 items

STUVIATESTBANKSEXAMS

Which of the following sets of parameters would likely provide the best T2 image weighting when a GE pulse sequence is applied? A. 1000 ms TR 5 m TE 20 degree flip angle C. 2000 ms TR 5 ms TE 180 degree flip angle D. 250 ms TR 20ms TE 10 degree flip angle - Correct Answer-D. 250 ms TR 20ms TE 10 degree flip angle What role do the protons that are aligned antiparallel to the main magnetic field play? A. They contribute to signal for image detail and contrast B. They do not cont...

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46 pages

Written in 2024/2025

Grade A+

STUVIATESTBANKSEXAMS

Which names contributed to development of NMR/MRI? - Correct Answer-Felix Bloch, Edward Purcell, Peter Mansfield, Paul Lauterbur, Damadian Which individual discovered that tumors and normal tissue can be distinguished by NMR because of their relaxation times? - Correct Answer-Damadian Which individual discovered that a charged particle such as a proton spinning around its own axis has a magnetic field known as a magnetic moment? - Correct Answer-Felix Bloch Which individual develo...

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18 pages

Written in 2024/2025

Grade A+

STUVIATESTBANKSEXAMS

Immediately after an initial 90 degree radio-frequency pulse is turned off, the hydrogen protons will begin to: - Correct Answer-Dephase. The introduction of gadolinium based contrast enhancement agents by Intra-venous injection can involve passing through an abnormal blood brain barrier. The tissue compartments involved are the: - Correct Answer-Intravascular to interstitial. Once in the main magnetic field, a majority of hydrogen protons will align themselves - Correct Answer-Paralle...

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7 pages

Written in 2024/2025

Grade A+

STUVIATESTBANKSEXAMS

MRI Physics Bundled Exams Questions and Answers Latest Versions (2025/2026) (Complete and Accurate)

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11 items

StellarScores

MRI Physics Questions and Answers Latest Version Graded A+ What is the function of gradient echo sequences? To produce fast imaging with lower RF power requirements Why is steady-state free precession (SSFP) used in MRI? To maintain continuous signal and enhance contrast in dynamic imaging What is the role of phase cycling in MRI? To reduce artifacts caused by phase inconsistencies How does increasing the number of slices in a 3D sequence affect scan time? It increases sca...

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26 pages

Written in 2024/2025

Grade A+

StellarScores

MRI Physics Quiz 2 Latest Version Already Graded A What is the primary function of the main magnetic field in MRI? To align hydrogen protons in the body What happens when an RF pulse is applied during an MRI scan? It excites hydrogen protons, causing them to move out of alignment What is the purpose of gradient coils in MRI? To spatially encode signals by varying the magnetic field Why is T2 relaxation important in MRI? It helps differentiate tissues based on their transve...

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13 pages

Written in 2024/2025

Grade A+

StellarScores

2025 MRI PHYSICS CORE EXAM QUESTIONS WITH ANSWERS 2025/2026 GRADED A+ with regard to entry slice phenomena, an increase in velocity of flow will yield a ______ in entry slice phenomena - increase you decrease NEX, you ____ scan time - decrease the international electrotechnical comission (IEC) has defined the normal operating mode for MRI scanner - pre-operating mode _____ consist of multiple coils and receivers whose individual signals are combined to create one - phased array coils __...

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28 pages

Written in 2024/2025

Grade A+

EXAMCAFE

2025 MRI PHYSICS FINAL ACTUAL EXAM QUESTIONS WITH ANSWERS 2025/2026 GRADED A+ More hydrogen protons are aligned parallel to the main magnetic field in the ________ energy state. a. high b. medium c. average d. low - low T/F If working with a magnetically shielded MR system, one does not have to be as careful about bringing ferrous objects around the magnet. - False Which of the following statements is true regarding resistive magnets? a. resistive magnets have higher field strengths t...

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31 pages

Written in 2024/2025

Grade A+

EXAMCAFE

2025 MRI PHYSICS EXAM QUESTIONS WITH ANSWERS 2025/2026 GRADED A+ which of the following is NOT a potential biological effect that could occur in a static magnetic field above 2.0 - increased touch sensitivity t1 and t2 relaxation depend on 3 factors, which of the following is NOT one of these factors? - how well the backscatter is kept to a minimum t2* decay is faster than t2 due to: - inhomogenities the nyquist theorem will remedy which of the following artifacts - aliasing the mathmati...

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6 pages

Written in 2024/2025

Grade A+

EXAMCAFE

2025 MRI PHYSICS PRACTICE GUIDE EXAM QUESTIONS WITH ANSWERS 2025/2026 GRADED A+ What occurs after an oscillating nuclei is exposed to a frequency matching its Larmor frequency? a. resonance b. decimation c. nothing d. gradation - resonance Faraday's Law of Induction states that if a magnetic field is moved through/near a loop of wire, it will create _______ in the wire. a. resonance b. a magnetic wave c. an electrical current d. torque - an electrical current What are the three ...

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6 pages

Written in 2024/2025

Grade A+

EXAMCAFE

MRI Physics Final Exam Questions With Correct Answers 100% Verified As the B0 increases, SNR will - AnswerIncrease The scan time can be determined by - Answer1. NEX 2. Number of phase encoding The precessional difference between hydrogen in fat and hydrogen in water in a 1.5 T magnet is - Answer224 Hz A chemical shift phenomenon that is useful to void signal from fat is known as - Answerfat saturation What effect does increasing TE have on SNR? - Answerdecrease it In a 1T magnet, fat a...

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10 pages

Written in 2024/2025

Grade A+

StarGuide

MRI PHYSICS 2 FINAL Exam Questions With Correct Answers 100% Verified. Gradient Echo - AnswerIn regards to MRI and flowing blood, all of the following naturally offer dark blood without any special imaging requirements, except which? Gradient Echo Fast Spin Echo Spin Echo Inversion Recovery False - AnswerTrue or False: Gradient moment nulling predominantly increases intra-voxel dephasing? Time of Flight phenomena - AnswerIf flowing nuclei receive a 90 degree (excitation) but do not re...

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22 pages

Written in 2024/2025

Grade A+

StarGuide

MRI physics Final Exam Questions With Correct Answers 100% Verified. What type of nonionizing electromagnetic radiation does MRI utilize? - AnswerRadio Frequency Preventing potential serious injury or death from strong magnetic field strengths requires: 1. a knowledgeable and mindful MR technologist 2. Controlled access to the magnetic field 3. a detailed medical history of anyone entering the room - Answer1, 2, and 3 When protons spin in place within an atom, they create: a. a small ma...

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40 pages

Written in 2024/2025

Grade A+

StarGuide

MRI PHYSICS FINAL Exam Questions With Correct Answers 100% Verified. Nuclei that have the strongest magnetic moments are those with - Answeronly hydrogen The Larmor frequency of nuclei depends on: - Answer# of protons and neutrons in the nucleus gyromagnetic ratio main magnetic field strength molecule in which nuclei are located The spin-lattice relaxation time in MRI is also called the - Answerlongitudinal relaxation time The shortest relaxation time in MRI is the - Answert2* The coil ...

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4 pages

Written in 2024/2025

Grade A+

StarGuide

MRI Physics Final Exam Questions With Correct Answers 100% Verified. All the following are artifacts in MRI except - Answerbeam hardening _____ is defined as the strength of the gradient over distance - Answerslew rate .5T is equal to _____ Gauss. - Answer5,000 A FLAIR inversion sequence is utilized to null - AnswerCSF A STIR inversion sequence is utilized to null - Answerfat a double echo, spin echo pulse sequence normally results in ____ - AnswerT2 and proton density weighted an inver...

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6 pages

Written in 2024/2025

Grade A+

StarGuide

Mri physics Final Exam Questions With Correct Answers 100% Verified. One advantage of 3D TOF-MRA is - Answerhigh resolution for small vessels one advantage of 2D TOF-MRA is - Answerlarger coverage area which conventional pulse sequence below provides black blood images - Answer-spin Echo -fast spin Echo -inversion recovery -all of the above MRI imaging techniques include - Answertime of flight phase-contrast contrast-enhanced all of the above the available Imaging time when using car...

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24 pages

Written in 2024/2025

Grade A+

StarGuide

MRI PHYSICS EXAMS BUNDLE| Latest Updated Questions and Answers Verified 100% Correct

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6 items

KenAli

MRI Physics Final Exam Study QUESTIONS/ANSWERS (VERIFIED AND WELL DETAILED ANSWERS) LATEST UPDATE 2024/2025

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16 pages

Written in 2024/2025

Grade A+

KenAli