ARRT MRI EXAM FINAL EXAM PRACTICE EXAM AND STUDY GUIDE Questions And Correct Answers Verified Latest Guaranteed Pass Grade A + UPDATED!!

ARRT MRI EXAM FINAL EXAM PRACTICE EXAM AND
STUDY GUIDE Questions And Correct Answers
Verified Latest 2024-2025 Guaranteed Pass Grade A
+ UPDATED!!



____________ discovered that tumors and normal tissue can be
distinguished by NMR because of their relaxation times. - ---CORRECT
ANSWER-->>Raymond Damadian

_______________ discovered that a charged particle, such as a proton,
spinning around its own axis, has a magnetic field, known as magnetic
momentum. - ---CORRECT ANSWER-->>Felix Bloch

_____________developed equation showing precession of nuclear
spins being proportional to magnetic field strength - ---CORRECT
ANSWER-->>Sir Joseph Larmor

In the 1930's- _______________ detected and measured single states
of rotation of atoms and molecules, determining the magnetic
moments of the nuclei - ---CORRECT ANSWER-->>Isidor Isaac Rabi

In _____, Damadian and his team constructed the first super
conducting NMR scanner and produced the first image of the human
thorax, which took almost 5 hours to scan - ---CORRECT ANSWER--
>>1977
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, In 1975, ___________ introduced 2D NMR using phase and frequency
encoding, and the Fourier Transform - ---CORRECT ANSWER-->>Richard
Ernst

In the year ______, Schering's _________ IV Gadolinium contrast gets
the first approval by the FDA - ---CORRECT ANSWER-->>1988;
magnevist

Functional MRI (fMRI) was developed in: - ---CORRECT ANSWER--
>>1991

____________ and _____________ won the 2003 Nobel Prize in
medicine for their work in the 1970's developing MR imaging
techniques and capabilities - ---CORRECT ANSWER-->>Lauterbur,
Mansfield

________ conceived the idea of echo planar imaging, which can rapidly
scan the whole brain. He and his colleagues publish the first successful
MRI of a living human body part - a finger - ---CORRECT ANSWER--
>>Peter Mansfield

_________ coined the word "electricity" and was the first to realize
that the Earth was a giant magnet. - ---CORRECT ANSWER-->>William
Gilbert

____________ developed the mathematical equation to analyze the
heat transfer between solid bodies, later becoming the basis for the
rapid processing of phase and frequency signals in MRI. - ---CORRECT
ANSWER-->>Joseph Fourier

_______________ discovered that a current flowing through a wire
could produce a magnetic field. - ---CORRECT ANSWER-->>Hans
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Christian Oersted

, _________________ discovered that when a magnet was moved inside
a coil of copper wire, a tiny electric current flows through the wire. - ---
CORRECT ANSWER-->>Michael Faraday

________________ developed equations describing how electric and
magnetic fields are generated and altered by each other and by charges
and currents. - ---CORRECT ANSWER-->>James Clerk Maxwell

____________ discovered and developed the first rotating magnetic
field. - ---CORRECT ANSWER-->>Nikola Tesla

________ and _________ won the Nobel Prize in 1952 for their
invention of equipment which could measure the magnetic resonance
in solids and fluids. - ---CORRECT ANSWER-->>Bloch; Purcell

The SI unit of magnetic field strength is named after: - ---CORRECT
ANSWER-->>Nikola Tesla

_________ discovered the spin echo phenomenon for nuclear magnetic
resonance measurements. - ---CORRECT ANSWER-->>Erwin Hahn

When positioning for a routine brain MRI, the patient should be
landmarked using the: - ---CORRECT ANSWER-->>nasion

What sequence is best for imaging a hemorrhagic infarct? - ---CORRECT
ANSWER-->>gradient echo

What are the functions of the insula? - ---CORRECT ANSWER--
>>perceptions, motor control, self-awareness, cognitive functioning,
and interpersonal experience
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How many cranial nerves are there? - ---CORRECT ANSWER-->>12

, What is diffusion? - ---CORRECT ANSWER-->>the thermally induced
motion of water molecules in tissues

Higher b-values in diffusion lead to: - ---CORRECT ANSWER-->>increased
signal loss

A low ADC corresponds to _____ signal intensity. - ---CORRECT
ANSWER-->>high

Common problems in DWI include: - ---CORRECT ANSWER-->>sensitivity
to magnetic susceptibility, bulk patient motion, low SNR.

Contrast in DWI depends on: - ---CORRECT ANSWER-->>the degree to
which molecular mobility
is impaired (water restriction), the sensitivity of the sequence to
Brownian motion, and the
direction of water diffusion.

The hippocampus is best seen with a ______ imaging plane. - ---
CORRECT ANSWER-->>coronal oblique

characteristics of the aqueduct of sylvius (aka mesencephalic duct or
the cerebral aqueduct) - ---CORRECT ANSWER-->>contains
cerebrospinal fluid (CSF), is within the mesencephalon (or midbrain)
and connects the third ventricle in the diencephalon to the fourth
ventricle,

A vestibular Schwannoma, often called an Acoustic Neuroma, is a: - ---
CORRECT ANSWER-->>benign primary intracranial
tumor of the myelin-forming cells of the vestibulocochlear nerve (CN
VIII)
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