MRI.401 Final Written Paper Assignment

Due Date: Monday, Friday, April 15

You are bringing Mr. Smith from Zone III to Zone IV for an MRI exam of his brain…

For this assignment, you will describe what occurs to the hydrogen proton sample (the patient) as Mr. Smith:

walks from Zone III to Zone IV
is positioned in the head coil inside the bore of the magnet
undergoes the imaging exam

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Directions: Using college level writing you will submit a 4 page essay using the following format:

Double-‐spaced
12‐point font

· Underlined words from the word bank

Separate reference page.

Using all the words in the wordbook below please describe in detail what will happen to the hydrogen of the patient’s body through each of the steps, starting at the entrance to Zone IV. Your essay will include:

all the words from the word bank (underlined in your essay)
a description of what is occurring to the hydrogen at each step in the process
a discussion of what occurs during 3 imaging sequences; a sagittal T1 SE, coronal T2 FSE, and an axial GRE
a comparison of the differences between FSE, SE and GRE with regard to the different RF pulses and or gradient pulses for each or the three pulse sequences

Word Bank

Coronal	Phase encode	Receive Bandwidth
Sagittal	Frequency encode	Magnetic Shimming
Axial	Slice select	Cryogen
Y-Axis	Control Console	Homogeneous
X-Axis	Larmor Frequency	X, Y, Z gradient
Z-Axis	Precession	Host Computer
Gradient	Resonance	Pulse Sequence Controller
RF	Parallel	DAC
Main Magnetic Field	Anti-parallel	ADC
Longitudinal	Magnetic Shielding	Array Processor
Transverse	Gradient Amplifier	Fourier Transform
Net Magnetization	RF Amplifier	MRI Signal
TR	RF Transmitter	Nyquist theorem
TE	RF Receiver	Slice Encode
Readout Gradient	Transmit Bandwidth	Add your own 5 words

NOTE: YOU MAY USE ANY FORM OF THE WORDS IN THIS WORD BANK. FOR EXAMPLE; MR SIGNALS, PHASE ENCODING, SAGITTAL SLICES

CRITERIA	20	15	10
Word Bank	Word bank words are underlined, all 15 words used + five more	Missing 1-5 words from the word bank and/or not underlined	Missing more than 5 words from the word bank
Sequencing	Proper sequencing throughout entire essay	1 – 5 sequencing errors	Greater than 5 errors
Terminology	All words are used appropriately	One word is used incorrectly	More than one words is used incorrectly
Writing	Well written, concise, reader friendly essay	Missing one of the criteria needed for full 20 points	Missing more than one of the writing criteria
Reference Page	Is provided	X	O if not provided