About this Program

This webinar provides those RTs who have an interest in MRI as well as practicing MRI technologists, with an overview of MR instrumentation, basic tissue characteristics and image contrast.  In addition, there will be a strong focus on artifacts, parameters and trade-offs. 

This program was developed to provide you with a thorough overview of the MR techniques and options necessary to obtain high quality MR images.  You will come away with useful applied information to help you take maximum advantage of the capabilities of your scanner and provide the best MR images.

Educational Objectives

Upon completion of this webinar, you should be able to:

  • Understand the creation of the MRI signal, from precession to detection by the RF coil.
  • Explain basic tissue characteristics (TI, T2, PD, and T2*) and identify images by these characteristics.
  • Describe the various instrumentation systems used in MRI and their purpose, including gradients, radiofrequency, magnet and coils.
  • Recognize artifacts seen on MRI images and discuss how they are caused and prevented
  • Describe various MR parameters, their function, and trade-offs regarding image optimization.

Schedule

What this course will cover

 

MRI Instrumentation

  • Magnetic Fields
  • Types of Magnets
  • Shielding
  • Receiver Coils
  • Operator Interface  

Image Contrast & Weighting

  • Extrinsic & Intrinsic Contrast Parameters
  • Free Induction Decay (FID)
  • T2* Decay, T1 Recovery, T2 Decay
  • Relaxation Times in tissues
  • T1& T2 Times
  • Image Weighting
  • Typical TR/TE values for imaging contrast

Spatial Encoding

  • Introduction to Gradient Coils
  • Gradient Imaging Planes
  • Gradient Slopes
  • Slice Selection, Slice Thickness
Break

Data Collection

  • Pulse timing sequence
  • Phase & Frequency Encoding
  • Read out Gradient
  • Receiver Bandwidth
  • Sampling Times

Image Formation

  • Introduction to image formation
  • K-Space properties, K-Space (Raw Data) filling
  • Fast Fourier Transform (FFT)
  • Center of K-Space (Contrast), Peripheral K-Space (Resolution)
  • Partial Echo and Half Scan
  • Sequential acquisition
  • Two-dimensional (2D) & three-dimensional acquisition (3D)
Lunch Break

Parameters and Trade-offs

  • Magnetic Field Strength
  • Signal To Noise Ratio (SNR)
  • Spatial Resolution (Phase & Frequency Matrix)
  • Contrast to Noise Ratio (CNR)
  • Slice Thickness
  • Field of View (FOV)
  • Rectangular Field of View (RFOV)
  • Pixel & Voxel Volume
  • Timing Parameters
  • Flip Angle
  • Number of Average, or Acquisitions (NEX, NSA)
  • Types of Coils
  • Receiver Bandwidth
  • Case Studies for parameters and trade-offs
Break

MR Artifacts: Causes, Remedies, and Parameter Changes

  • Phase Mismapping
  • Aliasing
  • Chemical Shift
  • Truncation
  • Magnetic Susceptibility
  • Cross-talk
  • Cross Excitation
  • Zipper
  • Shading
  • Moiré Pattern
  • Magic Angle
  • Partial Volume Averaging
  • T2 Shine Through
  • Dielectric Effect

Audience

Who should attend?

  • Practicing MRI Technologists
  • Those RTs interested in MR

Program Faculty

Meet your presenter(s)

Barry Southers

Barry Southers

M.Ed, RT(R)(MR)

Professor/Faculty Instructor/Director
MRI Section - AMIT Program
College of Allied Health Sciences
University of Cincinnati
Cincinnati, OH

Credits

Accredited training programs

ASRT Category A Credit Information

ASRT Category A

This program provides 8 hour(s) of Category A continuing education credit for radiologic technologists approved by ASRT and recognized by the ARRT and various licensure states. Category A credit is also recognized for CE credit in Canada. You must attend the entire program to receive your certificate of completion.  

Biennium CE Credits: 8Structured Education / CQR Credits: 8

Tuition

Convenient payment options available

AudiencePriceEarly PriceMember PriceMember Early Price
Technologist$199.00$189.00$179.00$170.00

Learn about membership

Early Pricing Guidelines

Qualifying 'Early' registrations must be made at least 14 days in advance for the program.

Cancellation Policy

Seminars/Webinars 8 hours of credit or more

Refunds, minus a $30 processing fee, will be granted for cancellations received at least 3 days prior to the program. Cancellations received within 3 days of the program will receive a credit toward a future MTMI program, minus the $30 processing fee. No refunds will be made after the program starts. MTMI reserves the right to cancel any scheduled program because of low advance registration or other reasons. MTMI’s liability is limited to a refund of any program tuition paid. MTMI recommends that attendees use refundable airline tickets. In case of cancellation of a program for any reason, MTMI is not responsible for travel costs incurred by attendees including non-refundable airline tickets. When offered, WEBINAR ATTENDEES that cannot log in due to unsolvable technical issues beyond their control will be eligible for a full refund.