Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MRSO 2 > Rite ad 2 > Flashcards

Rite ad 2 Flashcards

1
Q

what is the limit of the whole body SAR in 1st level mode

A

4W/kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the reason why a fast spin echo may produce more heating than a gradient echo

A

the presence of 180 deg RF pulses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what magnetic sysceptibility is defined here 1X10^-3

A

paramagnetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what magnetic sysceptibility is defined here -1X10^-3

A

diamagnetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what period of time does the B1 plus rms average energy delived to our patient over?

A

10 seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what pulse sequence will most likely promote the most heating

A

single shot fse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what pulse sequence will most likely promote the most heating spin echo or gradient echo

A

spin echo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what pulse sequence will promote the most opportunity for stimulation

A

DWI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what pulse sequence will promote the most stimulation

A

EPI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what risk is associated with the pressure building up in the MRI room following a malfunctioned release of helium

A

ear damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what risk is associated with the temperature of cryogen

A

frostbite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what will dtermine how well a patient will regulate their core temperature

A

surface area of patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what will determine the level of translational force

A

magnetic spatial gradient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what will increase induced currents in a patient

A

fast gradient activation and stronger fields

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what will increase the amount of stimulation in a patient: decrease slice thickness increase FOV decrease matrix

A

decrease slice thickness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what will increase the amount of stimulation in a patient: decrease slice thickness increase FOV imcrease matrix

A

increase matrix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what will increase the amount of stimulation in a patient: increase slice thickness decrease FOV decrease matrix

A

decrease FOV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what zone is accessible to the general public

A

Zone 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What zone is the quench pip in

A

Zone 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

when considering heating from the RF field what is our main concern

A

increasing core temperature

21
Q

which groups of agents do not require labs to be drawn

A

group 2

22
Q

which is considered the most accurate when referring to the patient RF dose SAR SED B1+rms

A

B1+rms

23
Q

which mode of operation should not cause physiological stress to our patient

A

normal mode

24
Q

which MRI unit can produce a B0 greater than 3T

A

superconducting MRI

25
Q

which MRI unit would most likely have a vertical field

A

permanent MRI

26
Q

which MRi unit would most likely produce the lowest field strength

A

permanent MRI

27
Q

which of the following is true when allowing the door to z4 to be open according the ACR manual

A

all

28
Q

which metal in a tattoo has the highest probablbility of producing a burn in the patients skin

A

iron oxide

29
Q

which of the following offer the role of MR safety consultant

A

MRSE

30
Q

which of the following shoulde be used to identify the largest threat to our patients associated with the static magnetic field

A

magnetic spatial gradient

31
Q

which of the following whole sequences would be most likely to produce stimulation in our patient DWI Conventional spin echo

A

DWI

32
Q

whcih fo the following with decrease SAR decrease TR decrease flip angle decrease Freq matrix

A

decrease flip angle

33
Q

whcih fo the following with decrease SAR decrease TR decrease flip angle decrease bandwidth

A

decrease bandwidth

34
Q

which fo the following with decrease SAR increase TR increase phase matrix decrease freq matrix

A

increase TR

35
Q

which fo the following with decrease SAR increase TR increase phase matrix increase freq matrix

A

increase Freq matrix

36
Q

which of the following will decrease our SAR gradient echo or spin echo

A

gradient echo

37
Q

which of the following will define the level of stimulation produced in our patient duty cycle slew rate

A

slew rate

38
Q

which of the following will fight for the gadolinium ion whan transmetalation is occuring carbonate or zinc

A

carbonate

39
Q

which of the followiong promote less stimulation when decreased phase matrix FOV slice thickness

A

phase matrix

40
Q

which of the following is considered more stable macrocyclic or linear

A

macrocyclic

41
Q

which of the following is considered more stable ionic or non-ionic

A

ionic

42
Q

which of the followoing would we assume would produce the largest artifact 316L SS Clip cobalt clip titanium clip

A

cobalt clip

43
Q

which of the followoing would we assume would produce the largest artifact iron stent titanium stent copper stent

A

iron stent

44
Q

which of the zones require a keypad or badge system to restrict access

A

Zone 3

45
Q

while scanning you see a large susceptibility artifact in the brain what should you do

A

contact the mrsd and discuss the best course of action

46
Q

who is responsible for building a safe MRI program for a site which may contain a PET/MRI or MRI in surgery

A

MRMD

47
Q

who is responsible for reviewing MRI screening sheets with patients prior to an MRI

A

level 2 personnel

48
Q

you are the only individual within a facility besides a manager and another tech are you able to give contrast

A

NO

MRSO 2 (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions