MRI: Resonance, Pulsing, Gradients, and Weights

CE Credits : 1.75
Start Date :  Sep 04, 2020End Date :  Dec 31, 2021

Organized by :   Medical Professionals

Specialties :   Radiology

Fees Fee :   Starting From USD 7

Conference Summary

MRI: Resonance, Pulsing, Gradients, and Weights is organized by Medical Professionals.

This article is accredited by the ASRT has been approved for a maximum of 1.75 Category A CE Credits.

License duration: 6 months from purchase date

This article introduces the learner to the concept of resonance, where we will discuss the magnetization vectors, both Macro and Micro, which occur at the nuclear level, we will dive into some basic pulse sequence information. Also, we will discuss gradients and how they are used to define where, in a given space, the resonance and signal will occur. Lastly, we are going to concentrate on the various weighting of tissues in the body. We will also learn the basics of how to adjust the TE and TR to control how tissue appears on the MR image, what these different contrasts to tissue look like and the impact on the signal as we make adjustments to TE and TR for contrast. 

• Meets the CE requirements of the following states: California, Texas, Florida, Kentucky, Massachusetts, and New Mexico
• Accepted by the American Registry of Magnetic Resonance Imaging Technologists (ARMRIT)
• Meets the ARRT® CE reporting requirements

• Define resonance and give examples of various types of resonance
• Define Larmor’s frequency
• Explain how field strength affects the frequency of hydrogen protons
• Define TE and TR
• Explain T1, T2 and T2*
• Explain a spin echo
• Differentiate between the longitudinal component and transverse component of the magnetization vector.
• Differentiate between the 90-degree and 180-degree RF pulse and explain why each is used.
• Define the sinusoidal wave
• Explain T2 decay
• Define and explain gradients
• List the three gradients used in MR Imaging
• Explain how Larmor’s frequency relates to the use of gradients
• Define which parameters control T1 weighting
• Define which parameters control T2 weighting
• List the weighting values and appearance of tissue on a T1 and T2 sequence
• List the impact on the signal of the various parameters used in T1 and T2 sequences
• Describe how contrast agents affect tissue weighting
• Define and differentiate between TE and TR
• Define SNR


Radiology Usage

Credit Info

  • CE Credits : 1.75
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