| Question 1: What characteristic of MRI scanners makes it hazardous to place equipment rated for 100 gauss at the 100-gauss line location? |
| Reference: | Siemens Magnetom Verio Typical Room Plan, Siemens Medical Systems USA, https://ftp.siemensmedical.com/pp-cutsheets/mr/verio/Cutsheet-07137.pdf. Accessed June 5, 2020 |
| Choice A: | Strong static magnetic fields |
| Choice B: | Large spatial field gradients |
| Choice C: | Fast time-varying field gradients |
| Choice D: | High transmitted RF power |
| Question 2: MR Unsafe equipment must never be brought into the MRI scan room. |
| Reference: | Manual on MR Safety, American College of Radiology. Version 1.0, 2020. https://www.acr.org/-/media/ACR/Files/Radiology-Safety/MR-Safety/Manual-on-MR-Safety.pdf Accessed June 5, 2020. |
| Choice A: | True |
| Choice B: | False |
| Question 3: 1. For a given MR scanner, which electromagnetic field(s) can be spatially manipulated to change the volume over which their energy is deposited? |
| Reference: | MagnetVision Software software and manual. |
| Choice A: | Static Magnetic Field |
| Choice B: | Spatial Field Gradient |
| Choice C: | Time-Varying Gradient Magnetic Field |
| Choice D: | RF Magnetic Field |
| Question 4: IEC required representations of spatial distribution of RF magnetic fields (representing maximum RF energy at isocenter) is an accurate representation of maximum RF exposure potential within the patient-occupiable volume of the MR scanner. |
| Reference: | MagnetVision software and manual |
| Choice A: | True |
| Choice B: | False |
| Question 5: The SAR limit for an implanted neurostimulator may be a consideration of |
| Reference: | “MRI Procedure Information For Abbott Medical MR Conditional Neurostimulation Systems” (or any neurostimulator instructions for use in MRI manual) |
| Choice A: | the implantable pulse generator conditions |
| Choice B: | the implanted lead condition |
| Choice C: | the RF-excitation coil used |
| Choice D: | anatomic landmark position |
| Choice E: | All of the Above |
| Question 6: A SAR limit, such as 0.8 W/kg, for an implanted neurostimulator |
| Reference: | MRI Procedure Information For Abbott Medical MR Conditional Neurostimulation Systems”; Allison J, Yanasak N. What MRI Sequences Produce the Highest Specific Absorption Rate (SAR), and Is There Something We Should Be Doing to Reduce the SAR During Standard Examinations?. AJR Am J Roentgenol. 2015;205(2):W140. doi:10.2214/AJR.14.14173 |
| Choice A: | can only be scanned using a head transmit-receive coil |
| Choice B: | cannot be scanned with the built-in body RF excitation coil |
| Choice C: | may be scanned by managing MR acquisition parameters |
| Choice D: | can be scanned using Normal Operating Mode limits |
| Choice E: | cannot scan landmarks below T7 |
