SPR 2020 Body MRI Course - SAM Session I: MRI Basics

Friday, September 25, 2020 | 9:10-10:40 EDT

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* 1. Which of the following MR technique is NOT frequently used to compensate for respiratory motion artifacts in a sedated, freely-breathing 5-year-old child undergoing an abdominal MR examination?

A. Respiratory triggering using bellows placed over the upper abdomen

B. Use multiple signal averaging to minimize ghosting artifacts

C. Play out a RF saturation band across the anterior abdominal wall to minimize the ghosting of high signal from the subcutaneous fatty tissue

D. Use ECG or peripheral pulse gating to decrease pulsation artifacts from the abdominal aorta

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* 2. From your understanding of the “3-rules of k-space” from this talk, which of the following statement is NOT following the 3 rules?

A. One full k-space data can be used to be transformed to make multiple different images

B. Contrast-enhanced MRA pulse sequences typically fills the center of the k-space first and therefore allows for the easier timing of the start of the acquisition with the arrival of the contrast to the vessel of interest

C. In single shot half-Fourier scans or HASTE, typically the filling of the k-space includes more than one half of the k-space and completely includes the center of the k-space so that it is not truly “half of the Fourier space”.

D. The basis of all the fancy rapid MR pulse sequences or tricks to increase speed of acquisition means that not the entire k-space is filled up with data before the transformation via Fourier transform is performed to create the resultant image.

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* 3. What are examples of Key Performance Indicators (KPI) in a pediatric body MRI practice?

A. Daily # of inpatients waiting for MRI

B. % MRI exams started on-time

C. Mean MRI scan duration

D. All of the above

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* 4. Which of the following is NOT a key element of a pediatric MRI quality management program?

A. Quality control

B. Quality assurance

C. Quality improvement

D. Quality feedback

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* 5. Entry of ferromagnetic objects first should be restricted from which MRI zone?

A. Zone 1

B. Zone II

C. Zone III

D. Zone IV

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* 6. Peripheral nerve stimulation and muscle twitching during MRI scan are attributable to which of the following?

A. Static Magnetic Field

B. Gradient Magnetic Field

C. RF Magnetic Field

D. Claustrophobia

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* 7. MRI detection of iron in which of the following organs aids in the diagnosis of Gestational Alloimmune Liver Disease (GALD)?

A. Liver

B. Spleen

C. Kidney

D. Pancreas

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* 8. Which of the following abdominal organs is the brightest on a T1 weighted image?

A. Liver

B. Spleen

C. Kidney

D. Pancreas

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* 9. Please enter your full name.

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