Optimal techniques in gadolinium-enhanced MR angiography What you should know-
#MRCA19 Optimal techniques in gadolinium-enhanced MR angiography What you should know

Optimizing the Utility of Gadolinium-Enhanced MR Imaging:
Balancing Efficacy and Safety


A total of 1.0 Hour Category A Technologist Credit can be earned.

This program is made available by an Unrestricted Educational Grant from Bracco Diagnostics

Program Description / Statement of Need:

This course is specifically designed with the magnetic resonance technologist in mind. With the FDA approval of numerous new MR contrast agents, the options - and complexity -of MR contrast agent administration and imaging sequence considerations have drastically expanded. With so much information - and misinformation - regarding the usage of MR contrast agents in MR imaging, angiographic, and perfusion studies today, this symposium is meant to serve as an interactive discussion to understanding MR contrast agent usage today. Although it will focus on the agents utilized predominantly for Neuroradiology MR imaging as well as MR angiography and perfusion MR, and Breast MR---general MR contrast agent concepts will be covered that apply to all FDA-approved MR contrast agents available today.

Target Audience:

The content of this Contrast Enhanced MRI Program is intended for healthcare professionals who work in the MRI environment. These individuals include MRI Technologists, Imaging Nurses, MRI Researchers, and Others.

Program Objectives:

At the conclusion of this activity, participants will be able to:  


  • Review Contrast Agents
    • ECF vs. “high relaxivity” vs. “blood pool”
    • What is relaxivity?
    • Why does it matter for MRA?
  • Image resolution
    • Want to push limit
    • Motion a problem in the abdomen
  • Signal to Noise Ratio (SNR)
    • Relationship between SNR and acquisition time and image resolution
    • Ways to increase SNR
      • Coils, Contrast, High Field

Methodology – 3D CE-MRA

· Preferred technique renal, carotid, aorto-iliac, runoff

o Standard technique

o Time-resolved

· Clinical MRA

o Renal

§ Indications/Examples

§ MRA and Phase Contrast angiography

§ Why the drop in renal MRA referrals

§ 3T?

§ High Relaxivity contrast and the literature

o Aorto-iliac

§ Indications/Examples

o Peripheral

§ Indications/Examples/Challenges

§ Moving Table

· 1 injection vs. 2 injection vs. time resolved

§ Thigh compression

§ Suggested protocol and technique for timing

§ High Relaxivity contrast and the literature

· What do you do differently in MRA with High Relaxivity Contrast?

o Flip angle increased, dose decreased

Accreditation and CE Credit Statements for Technologists

This program has been approved for 1.0 hour of Category A CE credit as designated by the Society for MR Radiographers & Technologists (SMRT) RCEEM.

Please NOTE: This activity was previously offered within a combined CE Module and cannot be used again in this or any subsequent biennium if completed previously. Additionally, this activity may be available in multiple formats or from different sponsors. ARRT regulations state that an individual may not repeat an activity for credit if it was reported in the same or any subsequent biennium.

Release Date: 9/26/2016 Expiration Date: 9/26/2017


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