Pre-Quiz – 2019 Las Vegas

Quiz Summary

0 of 5 Questions completed

Questions:

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 5 Questions answered correctly

Your time:

You have reached 0 of 0 point(s), (0)

Question 1 of 5

1. Question

How many operating modes are there for a clinical or research MR scanner?

1
Correct Incorrect Correct answer

2
Correct Incorrect Correct answer

3
Correct Incorrect Correct answer

4
Correct Incorrect Correct answer

5
Correct Incorrect Correct answer

Correct

Incorrect
Question 2 of 5

2. Question

How do SAR and B1+rms compare?

SAR defines the power taken up by the patient and B1+rms defines the transmitted RF energy strength
Correct Incorrect Correct answer

SAR defines the limit of the RF power while B1+rms defines the limit of the gradient power
Correct Incorrect Correct answer

SAR defines the power limit for adults while B1+rms defines the power limit for the pediatric population
Correct Incorrect Correct answer

SAR is always greater than B1+rms
Correct Incorrect Correct answer

SAR refers to magnetic fields while B1+rms refers to electrical fields
Correct Incorrect Correct answer

Correct

Incorrect
Question 3 of 5

3. Question

For superconductive MR scanners, where is the strongest static magnetic field Bo found in superconductive MR scanners?

Near the bore opening at the radial center of the scanner
Correct Incorrect Correct answer

Near the bore opening at the radial periphery of the scanner
Correct Incorrect Correct answer

At the bore center at the radial center of the scanner
Correct Incorrect Correct answer

At the bore center at the radial periphery of the scanner
Correct Incorrect Correct answer

Circumferentially just at the edges of the 30 cm diameter spherical volume (DSV) from isocenter
Correct Incorrect Correct answer

Correct

Incorrect
Question 4 of 5

4. Question

For superconductive MR scanners, where is the strongest magnetic spatial gradient (dB/dx, aka static field gradient) found in superconductive MR scanners?

Near the bore opening at the radial center of the scanner
Correct Incorrect Correct answer

Near the bore opening at the radial periphery of the scanner
Correct Incorrect Correct answer

At the bore center at the radial center of the scanner
Correct Incorrect Correct answer

At the bore center at the radial periphery of the scanner
Correct Incorrect Correct answer

Circumferentially just at the edges of the 30 cm diameter spherical volume (DSV) from isocenter
Correct Incorrect Correct answer

Correct

Incorrect
Question 5 of 5

5. Question

Which of the following would present the greatest concern for arrhythmogenesis (i.e., the potential to induce a cardiac arrhythmia in the patient) in a superconductive 1.5T MRI scanner?

A 5’ 9” male patient with Harrington rods from T1-T8, T spine MRI study centered at T5
Correct Incorrect Correct answer

A 6’ male patient with a 25 cm length of abandoned defibrillator lead extending from the upper outer left chest to the left lateral ventricular wall, left knee MRI study for meniscal tear centered at the tibia-femoral joint
Correct Incorrect Correct answer

A 5’ 3” female patient with a 30 cm length of an abandoned pacemaker lead extending from the right upper chest to the left ventricular wall, acute stroke MRI centered on the eyes (canthomeatal line) with transmit-receive head coil being used
Correct Incorrect Correct answer

5’ 8” female patient for cardiac MRI study with a 2.5 cm length of retained epicardial pacer wire/lead
Correct Incorrect Correct answer

5’ 7” female ICU patient for MRI of the cervical spine centered at C4 to evaluate for cord compression with thermodilution Swan-Ganz catheter in a right distal pulmonary artery branch vessel
Correct Incorrect Correct answer

Correct

Incorrect

Pre-Quiz – 2019 Las Vegas

Pre-Quiz – 2019 Las Vegas

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question